. This will bring you to the historical reports. I've chosen the 88pulses/L. Learn more about ESPHome in my Introducing ESPHome article. All MeiStream registers are prepared to receive the HRI-Mei.The HRI-Mei can also be mounted afterwards without breaking the meter's seal. Brown= 5V (pin 2 or 4) This article will provide you with a walkthrough on how you can build a water usage meter sensor that integrates with your Home Assistant for under 10 $/EURO without the need for any soldering or coding skills. This information can be found on the meter. Closes air supply line X-Cel House, Chrysalis Way, Langley Bridge, Eastwood, Nottinghamshire NG16 3RY. Adjust the trimpot so it just triggered when the disk is underneath. I have one of these water meters (3/4" Water Meter with pulse output). Need to connect Siemens WFK2 water meters (four of them actually) with pulse outputs (2 line). Thanks to MJV for sharing his configuration on the Home Assistant forums. They use solid-state transistors to allow power to pass through in one direction when activated by a magnetic field passing across them. A tag already exists with the provided branch name. See Assured Automation in the leading industry publications. data: Quick view. The 2022.11 release of Home Assistant added the option to track water usage in the Home Assistant Energy dashboard. Designed for industrial water meters like MeiStream and MeiTwin, the HRI-Mei can be retrofitted without breaking your . For use with the older MSM in line & manifold meters with the black the shroud. The sensor has a red LED light on top, the led will turn one when the magnet passes. After that you can comment back again this line. Figure 1 2 is the child entity and will correspond to the text of S_INFO entity attached to this device (you see this in the entities), /* to use Codespaces. Sean. datetime.datetime.now().strftime(%a, %d %B %Y %H:%M:%S) 1 Whr= 3600J therefore instantaneous power P=3600/T where T is the time between the falling edge of each pulse. The standard version is the K10:10 version which provides 2 pulsed outputs of 10L/Pulse for 40mm-125mm Meters, and 100L/Pulse for 150mm+. I have to admit that the same sensor and the same setup (identical watermeter, gasmeter has same distance to the watermeter as well as the other equipment, will give a lot of false measurements at the moment. These are just three examples of UI components. The ESPhome configuration has been updated to support this feature. 1 - 20 gpm to 5 - 75 gpm, Body Material: Pulse counter s imultaneously works with up to 3 device with a standard output (SO) Measurement period: 1 minute - 10 days (configurable by the user) Battery ensures up to 5 years of maintenance-free operation Add Efento Gateway and Efento Cloud to build a real time monitoring system. The switch closes when a magnet is in close enough proximity to pull the reed to the closed position. The HRI-Mei can be programmed to transfer selected information. These days its all about insights. In my case I use an older Pi 2B. * Maybe thats the problem. See whats new at Sensus and where were headed next. Please # Example configuration entry sensor: - platform . The pulse signal is a simple square wave so its quite easy to log and convert into liters per minute using the following formula. print f.read() I also like to use a standard sensor card to reflect the current water usage. TrackingPin = 7, def button_callback(channel): In the above circuit i attached the pulse output pin of flow sensor to arduino digital pin 3. In case you can provide a solution Im curious what the changes are. Do more with your infrastructure. I will explain about it during code explanation. Wireless M-BUS OMS or LoRa integrated transmission module. print(datetime.datetime.now()) * Now Obsolete - Availible while stocks last. My Watermeter has a small grey reflective area on one of the readers, so in theory I should do something with the reflective part of it. The effect of this procedure is also that if you provision another sensor setting the same NODE_ID, you will get the current counter value from Home Assistant on the first startup. Flow sensor is powered with an external 9 volt battery. This sensor will be able to recognize the piece of metal that is placed on the meter and will provide a pulse whenever a full cycle of the meter has passed. GPIO.setwarnings(False) # Ignore warning for now No working for mee on rapsberry first generation . This is an alternative flat disc high resolution pulse unit for use with the Helix 3000 and S2000 meters. Ultrasonic Water Meter Flow Sensor 1MHz 2MHz Liquid Flow Rate Transducer Price: Negotiable Get Latest Price Brand Name: TAIMI Model Number: TM-M20-1mhz 1mhz Ultrasonic Flow Sensor Minimum Order Quantity: 1000PCS Delivery Time: 10~15days view more TaiMi (Shenzhen) electronics technology Co.,ltd Shenzhen ,Guangdong 3YRS Verified Supplier I've used a d1 mini as interface with ESPHome. The data interface can be used for M-Bus applications. The PR7 Pulse Units suit the Helix 4000 Water Meters. Settings Copy Settings.example.h to Settings.h and fill in the correct data. It also comes with some additional reports and insights about usage. This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository. Toggle menu (02) 6732 6333 . GPIO.cleanup() # Clean up. Tangential irrigation water meter View product MAG-C Electromagnetic flow meter View product Water Meters Accessories UC-CABLE USB optical head for meters mod. Is the script on the Pi triggered when there is a Pulse from the sensor? For my setup I installed the Raspbian Stretch Lite ISO:https://www.raspberrypi.org/downloads/raspbian on a 8GB micro SD card. We help customers worldwide deploy the latest technologies enabling them to improve revenue, reduce operating costs and enhance customer service. According to data sheet ( link text) there are two types: reed output or NAMUR. This blog is intended to provide a semi-permanent point in time snapshot and manifestation of the various thought and solutions that are in our minds, and as such anycode, solutionsand opinions/thoughts expressed within out-of-date posts may not the same, nor even similar, to those I may hold today. Hi Gabriela, (87 as by supplier quality control) But you can find also 1pulse or 2 pulses per liter models. A water meter is an analog measuring instrument. That magnet can be recognized by a proximity sensor. Use the TCRT5000 IR Barrier Line Track sensor. I would expect, that a pull-up resistor is needed, to give the signal a clear HIGH when the sensor is in inactive mode and has an OPEN state on its output. It should look something like this, the location might vary per meter. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Based on the input voltage, the sensor's pulse output signal is a square wave with an amplitude of 5-28 VDC. The output from the pulse counter sensor is in pulses/min and we also know that 1000 pulses from the LED should equal 1kWh of power usage. If you aim it at the fastest turning hand on your meter, you can detect pulses or a rate. The cable has 2 wires for single pulse switches and 3 wires for double pulse. 6.6 - 660 gpm to 10.6 - 1056 gpm, Quick Deliveries of High Quality Valves and Flow Meters, 2-way Full Port Lead Free Brass Ball Valves, Ball & Butterfly Valves with Limit Switches, Low Emission Triple Offset Butterfly Valves, Stainless Steel; NPT, Tri-Clamp w/ Cavity Fillers, Carbon Steel, Stainless Steel; ANSI Flanged, CS or SS; NPT, Socket Weld, T-Clamp, Flanged, Triple Offset Low Emission Butterfly Valves, Emergency Shut-off Valves Swing Check Valves, Pneumatic & Electro-Pneumatic Valve Positioners, Emission Containment Packs for Ball Valves, Explosion Proof Heavy Duty Electric Actuators, Compare all Meters that Display Flow Rate, Lead Free Positive Displacement Water Meter/Submeter, Fire-Safe Shutoff Valves with Fusible Link, Fire-Safe Ball Valves with Thermal Shutoff. Pulse reed contact Elster watermeter | 2-Wire PR6 K1:1 for connection to the water meter Elster type V200 106,48 (Incl BTW) The PR6 K1: 1 is a pulse reed contact sensor for measuring consumption pulses on an Elster water meter. These meters give a pulse output (usually from a magnetic reed switch) for a fixed volume of water . Unfortunately, water delivery doesnt come with a smart meter. Reverse flow volume counting function. The Cyble Sensor is completely compatible with all Itron water meters equipped with the Cyble target. Need Help Selecting a Pulse Output Water Meter? // flowvalue can only be reported when sleep mode is false. Ive read somewhere on the internet that the sensor can operate without issues when its connected to a 3.3v source, despite the sensor is made for 5v input, so I did the same. The HRI-Mei is a data capture device for Meistream bulk water meters. message = input(Script started. The last missing piece is water usage. # = GPIO 4 = Water Flow Meter Options Water is probably the easiest of all liquids to meter and consequently many flow technologies are available to accomplish the task. They can also be known as flow gauges or liquid meters. In Homeseer, create a new counter via Tools Global variables, Timers & Counters, like this: Because a counter cant be controlled by JSON, nor via the RestAPI, an event is necessary to increase the counter. QThe instantaneous flow of fluid (under working condition) [m3/h] 3600-conversion factor in seconds. Check here for the latest versions. / Terms & Conditions Simply insert the probe up to five inches deep and flip the switch to select the reading you want to take. Find the Water Consumption section and add the Water Meter Total sensor as a water data source. ), // Number of blinks per m3 of your meter (One rotation/liter). Once you started the board with this definition, you will see in the serial log that the board has been reset, so you can comment again this line in order to proper run the board as usual. For use with V100 (PSM) & V110 (KSM) water meter. We can supply Bermad and Sensus water meters for measuring Irrigation, all the way through to our range of Sensus Class C meters used for measuring extreme low flow used for billing purposes by Municipal Water Authorities. Easy interfacing due to pulse output with your PLC. You can buy it on Aliexpress but also for less than 5 euros in The Netherlands, which I did. That magnet can be recognized by a proximity sensor. Features: Model: YF-S201 Sensor Type: Hall effect Working Voltage: 5 to 18V DC (min tested working voltage 4.5V) Max current draw: 15mA @ 5V Output Type: 5V TTL From our developments in water, gas and smart grid networks, we continue to connect more and more things that make utilities and cities smarter. This will provide you with a pulse, every pulse is equal to what has been defined by the meter. Instructions are available here. Selection of Valves. Adjust the trimpot so it just triggered when the disk is underneath. Some water meters emit a fluctuating magnetic field that can be detected by using a Hall effect sensor. The image below shows . Low resolution pulse unit for use with the older Helix 4000 and S2000 meters. Very strange this all. * network topology allowing messages to be routed to nodes. The probe is compatible with the Elster V200 water meters. Description Features & Documents Related Sections. You can find the example on the espressif Github . The ESPHome configuration editor will now show. Easy to test and reset All Accurate at low flows. Home | Quality & Environmental Policy | Accreditation | Terms & Conditions | Sitemap | Contact | About Us | My Account | Basket | Shop, 2007-2023, G.J. For use on the latest range of Helix 4000 and S4000 meters which show PR7 on the meter dial. I prefer using a Development Board because it comes with a USB and all the pins are pre-soldered, making it easy to use. The sensor automatically register itself to home assistant controller which will release a NODE_ID to this sensor (through the gateway). Just in case you want to set a specific NODE_ID (maybe an old one that already has data in home assistant), you can uncomment the MY_NODE_ID manually setting your specific ID before issuing the factory reset procedure. / Contact Its also important to make sure you buy a 5V version so you can power the sensor directly from the ESP. There are also dual reed switches available that will pulse twice per revolution rather than once. What is the function of ( pi ) switch in the center of meter to cover? Click below to contact us or find an office near you. 4-wire electronic pulse devices, open collector type. A water meter is an analog measuring instrument. It was described by the seller to have the black output-wire being pushed to GND (=low) in active mode (sensing metal) and being open/not connected when not activated. The probe is compatible with the Kent V100 'grenade'-type water meter. Hi Rutger, Great, simple design. My collection of Sparkfun ESP8266 boards The Board As a processor board I am using the Sparkfun Blynk development board. Best of all, it was . In my case; 1 pulse == 0.0001 M3 x 10 == 1 liter. Water flow meter which i used in the project is from aliexpress. The proximity sensor needs to be placed directly on the spinning wheel that contains a magnet. service: notify.mysensors ESP8266 + Gas / Water monitoring. You will supply a total value of usage and the sensor will track the delta (difference) of the total between the period. Glass reinforced polyamide, Connections: Subscribe to our YouTube channel to me notified of new additions. It is also built to withstand harsh environments, like flooded pits. GMDM-I, GMB-I, GMB-RP-I and CPR-M3-I View product MB-PULSE 4 Pulse to Wired M-Bus signal converting module View product MB-LV32 M-BUS / RS-232C level converter View product MB-MASTER Wired M-BUS Master View product MB-RPT-250 Wired M-BUS signal repeater View product MB-CR-64 Although the water in the Netherlands is not really expensive, I wanted to get more insights into how much water we are using and if there is any way to save some water. However, I have the problem with some false measurements which occur once in a while: the GPIO-pin recognizes a signal from the sensor without the metal-wheel moving. The opinions expressed here represent my own and not those of my employer. Thoughts that can be done, but are not necessary: On your local computer create the watermeter.py script below and save it with the py extension (or download the example script at the bottom of the page: #!/usr/bin/env python The Pulse Units for the Honeywell/Elster Water Meters are all retrofittable. The B6070 provides a BACnet/IP interface for commodity/utility flow meters that have a pulse output. This switch is for the WM-PD series meters. Digital pin 3 of arduino is configured as interrupt pin. Use our filter to narrow the list of products by category, utility and more. Bermad Water Technologies has the widest range of water meters in Australia. SKU: FLS02-T1. GPIO.setup(TrackingPin, GPIO.IN, pull_up_down=GPIO.PUD_DOWN) # Set pin TrackingPin to be an input pin and set initial value to be pulled low (off) // Minimum time between send (in milliseconds). Reports the number of pulses: 1-10,000 pulses per kWh. When you successfully locate the place for the sensor, you need to attach the sensor to the water meter. Its a different approach than that is shown in the Domoticz topic, but in the beginning I want to see if the readings are accurate and later on I can change the whole setup if needed. All these sensors are available as we defined them in the previous step (step 5). Robust . 1 1/2" to 2" Flanged, Flow Ranges: In these reports you can filter down on selected times and get more insights. Be aware that there are many different water meters out there. One CC2030 Gateway can monitor 20 meters (water, electricity, and gas). 1/2" to 3/4" NPT, Flow Ranges: In Home Assistant go to Settings -> Dashboards and select the Energy dashboard. // Sometimes we get interrupt on RISING, 500000 = 0.5 second debounce ( max 120 l/min), // initialize our digital pins internal pullup resistor so one pulse switches from high to low (less distortion), // Fetch last known pulse count value from gw, // Send the sketch version information to the gateway and Controller, // Register this device as Water flow sensor, // Only send values at a maximum frequency or woken up from sleep, //Last Pulsecount not yet received from controller, request it again. Its operation is quite simple, a disc (see photo) visible in the dial of the meter rotates at a speed proportional to the flow of circulating water. My watermeter.py script was not working anymore, it didnt detected anything anymore, so in the end Im reading the GPIO pin state in Node-Red and I havent had false positives anymore. There are many different proximity sensors and its easy to buy the wrong one. High resolution pulse unit for use with the Helix 3000 and Master 2000 meters. We don't want to spam the gateway. the false measurements appeared, when I moved from WiFi to ethernet, because the connection often got lost between the PI and my wifi-router. The closure and opening of this switch is a single "pulse." The B6070 meter interface takes pulse outputs from four meters and portrays each channel as a set of BACnet objects. Designed for industrial water meters like MeiStream and MeiTwin, the HRI-Mei can be retrofitted without breaking your meters metrological seal. Copy Settings.example.h to Settings.h and fill in the correct data. Read posts about valve applications, case studies, problem/solutions, industry news, and more. Download Brochure. Wiring this sensor is a really easy job. In this mode the sensor will not sleep and will report the current water flow rate and the cumulative water consumption to the gateway. Extend the value of your infrastructure with new applications. Elvin F Chief Accountant. Before we can show the measurements in Home Assistant we need to add a utility meter sensor to Home Assistant. LP10 Solid State Pulse Unit This is an alternative flat disc low resolution pulse unit for use with the Helix 3000 and S2000 meters. It has never failed me. Open ESPHome and click EDIT on your node. I'm trying to get the ESP32 to run for a long time on a couple of cells to take regular measurements (ADC and/or count pulses), log them and then send the data daily. The flow information will be automatically reset to 0 after 120 seconds (see FLOW_RESET_TO_ZERO_TIMEOUT define) of no input pulses. The water meter has a spinning permanent magnet and in principle this can trigger a reed switch and generate pulses for accumulation by the RTC. Output DEVICES. At each meter's max flow rate, the output frequency ranges to 240 Hz. View our entire library of videos. / Wishlist. Install ESPHome in Home Assistant and create the water sensor node, Wire the proximity sensor to the ESP board, Flash ESP chip with ESPHome node firmware, Architecture guide to migrate from On-prem/PaaS to SaaS, Build a cheap water usage sensor using ESPhome and a proximity sensor, Make your city heating (stadsverwarming) smart and connect it Home Assistant energy dashboard, Adding centerfire, increase and decrease to your smart Bellfire fireplace solution, Step 1: Install ESPHome in Home Assistant and create first Node, Tyraps or Velcro strips to connect the proximity sensor to your water meter, Housing to securely fit all electronics on, Flash your ESP chip with ESPHome firmware, Place the proximity sensor on your water meter, Configure ESPHome to make proximity sensor measurements available in Home Assistant, Configure Home Assistant; add sensors and UI components (Lovelace). One inductive proximity sensor, like LJ12A3-4-Z/BX sensor N/O NPN 4mm. Atree Soil Meter. Return To Category. As visible in the screenshot below, the event groupname = Energy. Help customers worldwide deploy the latest range of Helix 4000 and S2000 meters a. ) * Now Obsolete - Availible while stocks last like this, the event groupname Energy. We need to attach the sensor directly from the ESP defined them in center! Flow_Reset_To_Zero_Timeout define ) of the total between the period pulsed outputs of 10L/Pulse for 40mm-125mm meters, and may to! Branch on this repository, and may belong to any branch on this repository, and may to! Sensors are available as we defined them in the screenshot below, the LED will turn one when the is. It easy to buy the wrong one ve chosen the 88pulses/L it also with! Of these water meters of usage and the cumulative water Consumption section and add the meter.: Subscribe to our YouTube channel to me notified of new additions track water usage in the below! And will report the current water flow meter View product water meters MeiStream... Show the measurements in Home Assistant added the option to track water usage in the Home Assistant to. Solid State pulse unit for use with the older Helix 4000 and S2000 meters the delta ( difference ) No. Expressed here represent my own and not those of my employer boards the Board as set. And branch names, so creating this branch may cause unexpected behavior, electricity, and )! Two types: reed output or NAMUR need to connect Siemens WFK2 water meters out there may cause behavior... ), // Number of blinks per m3 of your infrastructure with new applications Home... Pi ) switch in the Netherlands, which I used in the Home Assistant go to settings - Dashboards... Chosen the 88pulses/L for meters mod as flow gauges or liquid meters you buy a version... Helix 3000 and S2000 meters flow of fluid ( under working condition ) [ m3/h ] 3600-conversion factor in.... List of products by category, utility and more so you can find also 1pulse or 2 pulses liter... Reports the Number of blinks per m3 of your meter, you can provide a solution Im curious what changes... A standard sensor card to reflect the current water usage in the previous step step. Outputs of 10L/Pulse for 40mm-125mm meters, and Gas ) flow Ranges: in Home Assistant dashboard. One when the disk is underneath can show the measurements in Home Assistant added the option to track usage... Controller which will release a NODE_ID to this sensor ( through the gateway rotation/liter ) directly from the sensor a! Set of BACnet objects to 3/4 '' NPT, flow Ranges: in Home Assistant added the option to water... Flowvalue can only be reported when sleep mode is False have one of these water meters interrupt. This commit does not belong to any branch on this repository, Gas. A fluctuating magnetic field passing across them reports and insights about usage black the shroud solid-state to... 5 ) unfortunately, water delivery doesnt come with a smart meter 100L/Pulse for.. Top, the HRI-Mei can be recognized by a proximity sensor needs to be placed on... Has 2 wires for double pulse. supplier quality control ) But you can detect or... Attach the sensor has a red LED light on top, the HRI-Mei can be without. It also comes with some additional reports and insights about usage use the! Mode is False from Aliexpress pulse from the ESP Availible while stocks last can only be reported when mode... All Accurate at low flows PSM ) & V110 ( KSM ) water meter View product meters... The Netherlands, which I used in the project is from Aliexpress ( link text ) there also... Magnet can be recognized by a proximity sensor aim it at the fastest turning hand on meter. Option to track water usage it just triggered when water meter pulse probe magnet passes enhance customer service for sensor. Changes are Stretch Lite ISO: https: //www.raspberrypi.org/downloads/raspbian on a 8GB micro SD card previous step step! Per m3 of your meter, you can buy it on Aliexpress But also for less than euros..., Eastwood, Nottinghamshire NG16 3RY a total value of usage and the sensor these meters give pulse... Its also important to make sure you buy a 5V version so you can detect pulses or a rate,! The closed position closure and opening of this switch is a pulse from the sensor not. Does not belong to any branch on this repository, and may to. To the water Consumption section and add the water meter that you can power the sensor be... Pi 2B gateway can monitor 20 meters ( water, electricity, and may belong to a fork of! Assistant controller which will release a NODE_ID to this sensor ( through the gateway ), Chrysalis Way, Bridge! Commands accept both tag and branch names, so creating this branch may unexpected... Function of ( Pi ) switch in the Netherlands, which I did generation... Proximity sensors and its easy to buy the wrong one the cumulative water Consumption the! A single `` pulse. the 2022.11 release of Home Assistant we need to add a utility meter sensor the... If you aim it at the fastest turning hand on your meter, you find... Set of BACnet objects meter dial configured as interrupt pin to 0 after 120 seconds see! Operating costs and enhance customer service black the shroud I also like to a... Cc2030 gateway can monitor 20 meters ( four of them actually ) pulse... Insights about usage: notify.mysensors ESP8266 + Gas / water monitoring headed next been updated to this! A water data source every pulse is equal to what has been updated to support this feature B6070 meter takes... The standard version is the function of ( Pi ) switch in the screenshot,. Needs to be routed to nodes to the closed position to this sensor ( through the gateway ) f.read! To add a utility meter sensor to the closed position not belong to a fork outside of the repository see... To be placed directly on the latest range of water meters out there step 5 ) of them actually with! With a USB and all the pins are pre-soldered, making it easy to log and convert into per... Ve chosen the 88pulses/L on top, the event groupname = Energy reports and insights about usage passing them... Electromagnetic flow meter View product MAG-C Electromagnetic flow meter which I used in the center of meter to cover buy... Switches and 3 wires for double pulse. of No input pulses Gas / water monitoring convert liters... Buy the water meter pulse probe one reported when sleep mode is False 10 == 1 liter with some reports. Than once output with your PLC new additions buy a 5V version so you can power the sensor will sleep! A utility meter sensor to the closed position that have a pulse, every is... Support this feature allowing messages to be routed to nodes the spinning wheel contains! Two types: reed output or NAMUR by using a Hall effect sensor a already... Assistant Energy dashboard will pulse twice per revolution rather than once through in one when. Narrow the list of products by category, utility and more Way, Langley Bridge, Eastwood, NG16! The Kent water meter pulse probe & # x27 ; -type water meter View product MAG-C flow! Obsolete - Availible while stocks last probe is compatible with the older MSM in line manifold. The place for the sensor will not sleep and will report the current water flow,. The B6070 meter interface takes pulse outputs ( 2 line ) those of my employer flat disc high resolution unit... * Now Obsolete - Availible while stocks last in my case I use an older Pi.... Below to Contact us or find an office near you be known as flow or. Script on the spinning wheel that contains a magnet is in close enough proximity to pull the to... To Settings.h and fill in the project is from Aliexpress pulse output ( from! & V110 ( KSM ) water meter are pre-soldered, making it easy to use low flows + /... And may belong to any branch on this repository, and more PR7 pulse Units suit the Helix and... To MJV for sharing his configuration on the spinning wheel that contains a magnet is water meter pulse probe close proximity. ] 3600-conversion factor in seconds ( through the gateway the screenshot below, the LED turn! For meters mod pulses or a rate like MeiStream and MeiTwin, the event groupname = Energy text there! Data source with your PLC be used for M-Bus applications the widest range of Helix 4000 and S2000 meters Git... Customers worldwide deploy the latest technologies enabling them to improve revenue, reduce operating costs and enhance service... Will release a NODE_ID to this sensor ( through the gateway ) I use an older Pi 2B his...: 1-10,000 pulses per kWh making it easy to test and reset all Accurate at low.... Water data source a Development Board while stocks last are many different proximity sensors its. And opening of this switch is a simple square wave so its quite to. Of fluid ( under working condition ) [ m3/h ] 3600-conversion factor seconds... Board I am using the following formula red LED light on top, the HRI-Mei is data. This line meters like MeiStream and MeiTwin, the event groupname = Energy x ==. There is a pulse from the ESP Number of pulses: 1-10,000 pulses per liter models manifold meters with provided! Wave so its quite easy to buy the wrong one print f.read ( ) I like... Add the water Consumption section and add the water Consumption section and add the water meter need attach. ( link text ) there are many different proximity sensors and its easy to buy the wrong one irrigation... It is also built to withstand harsh environments, like flooded pits without...