{"product_id":"industrial-rs485-water-quality-ammonia-nitrogen-ph-sensor-df-sen0711","title":"Industrial RS485 Water Quality Ammonia Nitrogen \u0026 pH Sensor","description":"\u003cp\u003eThis industrial-grade ammonia nitrogen sensor probe and housing feature an integrated design, resulting in a simple and convenient structure. It is used for accurately measuring ammonia nitrogen concentration in water (including free ammonia (NH3) and ammonium ions (NH4+)), with a measurement range of 0~100 mg\/L, a resolution of 0.01 mg\/L, and an accuracy of ±3% FS.\u003c\/p\u003e\u003cp style=\"text-align: center; \"\u003e\u003cimg src=\"https:\/\/dfimg.dfrobot.com\/enshop\/image\/data\/SEN0711\/1.png\" alt=\"Features of Industrial RS485 Water Quality Ammonia Nitrogen \u0026amp; pH Sensor\" title=\"Features of Industrial RS485 Water Quality Ammonia Nitrogen \u0026amp; pH Sensor\"\u003e\u003c\/p\u003e\u003cp\u003e    The ammonia nitrogen sensor is equipped with an RS485 communication interface and supports the standard ModBus-RTU protocol.  Tutorials are provided for connecting the sensor to an Arduino development board and DFRobot LoRaWAN, allowing for quick setup of a test environment and real-time data monitoring. The sensor features automatic pH and temperature compensation, ensuring accurate and reliable data output even under varying environmental conditions.\u003c\/p\u003e\u003cp style=\"text-align: center; \"\u003e\u003cimg src=\"https:\/\/dfimg.dfrobot.com\/enshop\/image\/data\/SEN0711\/2.png\" alt=\"Measurement data of Industrial RS485 Water Quality Ammonia Nitrogen \u0026amp; pH Sensor\" title=\"Measurement data of Industrial RS485 Water Quality Ammonia Nitrogen \u0026amp; pH Sensor\"\u003e\u003c\/p\u003e\u003cp\u003eThe ammonia nitrogen sensor is rigorously calibrated before leaving the factory and is ready for use upon arrival, requiring no further calibration. It supports two-point electrode calibration via register settings, allowing users to quickly optimize measurement accuracy after prolonged use.  With an overall waterproof rating of IP68, it can be submerged in water for extended periods, making it suitable for applications such as aquaculture, wastewater treatment, and environmental monitoring.\u003c\/p\u003e\u003cp style=\"text-align: center; \"\u003e\u003cimg src=\"https:\/\/dfimg.dfrobot.com\/enshop\/image\/data\/SEN0711\/3.png\" alt=\"Overview of Industrial RS485 Water Quality Ammonia Nitrogen \u0026amp; pH Sensor\" title=\"Overview of Industrial RS485 Water Quality Ammonia Nitrogen \u0026amp; pH Sensor\"\u003e\u003c\/p\u003e\u003ch2\u003eFeatures:\u003c\/h2\u003e\u003cp\u003e\u003c\/p\u003e\u003cli\u003eSimple calibration function, supporting two-point electrode calibration\u003c\/li\u003e\u003cli\u003eMeasurement range: 0~100 mg\/L, resolution: 0.01 mg\/L, accuracy: ±3%FS\u003c\/li\u003e\u003cli\u003eIntegrated probe housing design, waterproof rating up to IP68\u003c\/li\u003e\u003cli\u003eFeatures automatic pH and temperature compensation to ensure measurement accuracy\u003c\/li\u003e\u003cli\u003eRS485 communication interface, supporting ModBus-RTU protocol\u003c\/li\u003e  \u003ch2\u003eApplications:\u003c\/h2\u003e\u003cli\u003eHigh-Density Aquaculture: Monitor toxic free ammonia levels in fish and shrimp farming tanks in real-time, triggering automated water exchange or aeration systems before livestock is harmed.\u003c\/li\u003e\u003cli\u003eMunicipal Wastewater Treatment: Deploy in aeration basins to measure nitrification processes, optimizing blower power consumption based on exact ammonia reduction metrics.\u003c\/li\u003e\u003cli\u003eEnvironmental \u0026amp; Ecological Monitoring: Submerge in rivers, lakes, or reservoirs to track agricultural runoff and pollution levels, utilizing LoRaWAN for long-range, continuous ecological data collection.\u003c\/li\u003e\u003cli\u003eSmart Hydroponics \u0026amp; Aquaponics: Track nutrient availability within closed-loop irrigation systems, ensuring optimal plant uptake and preventing root burn from ammonia spikes.\u003c\/li\u003e\u003ch2\u003eSpecification:\u003c\/h2\u003e\u003cli\u003ePower Supply Voltage: 10~30V DC\u003c\/li\u003e\u003cli\u003ePower Consumption: 0.3W\u003c\/li\u003e\u003cli\u003eCommunication Interface: RS485 (Standard ModBus-RTU protocol)\u003c\/li\u003e\u003cli\u003eMeasurement Range:\u003cbr\u003e       Ammonia Nitrogen: 0~100 mg\/L\u003cbr\u003e       pH: 0~14 pH\u003cbr\u003e       Temperature: 0°C~+60°C\u003c\/li\u003e\u003cli\u003eMeasurement Accuracy:\u003cbr\u003e       Ammonia Nitrogen: ±3%FS\u003cbr\u003e       pH: ±0.15 pH\u003cbr\u003e       Temperature: ±0.5°C\u003c\/li\u003e\u003cli\u003eResolution:\u003cbr\u003e       Ammonia Nitrogen: 0.01 mg\/L\u003cbr\u003e       pH: 0.01 pH\u003cbr\u003e       Temperature: 0.1°C\u003c\/li\u003e\u003cli\u003eRepeatability Error: 1%\u003c\/li\u003e\u003cli\u003eTemperature Compensation Range: 0°C~+60°C\u003c\/li\u003e\u003cli\u003eResponse Time: 30S\u003c\/li\u003e\u003cli\u003eOperating Temperature: 0°C~+50°C\u003c\/li\u003e\u003cli\u003eWaterproof Rating: IP68\u003c\/li\u003e\u003cli\u003ePressure Resistance: 0.2MPa\u003c\/li\u003e\u003cli\u003eCable Length: 5m\u003c\/li\u003e\u003cli\u003eHousing Material: Corrosion-resistant plastic\u003c\/li\u003e  \u003ch2\u003eProduct Includes:\u003c\/h2\u003e\u003cli\u003eRS485 Water Quality Ammonia Nitrogen\u0026amp;pH Sensor      x1\u003c\/li\u003e\u003cli\u003e5m sensor cable                                         x1\u003c\/li\u003e\u003cli\u003eBlack protective mesh                                    x1\u003c\/li\u003e\u003cli\u003eCable ties                                               x2\u003c\/li\u003e  ","brand":"DFRobot","offers":[{"title":"Default Title","offer_id":42388492910674,"sku":"DF-SEN0711","price":683.42,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/0383\/files\/SEN0711_Main_01.jpg?v=1777691618","url":"https:\/\/www.pakronics.com.au\/products\/industrial-rs485-water-quality-ammonia-nitrogen-ph-sensor-df-sen0711","provider":"Pakronics®","version":"1.0","type":"link"}