{"title":"Gravity HF Gas Sensor (Calibrated) - I2C/UART/Analogue","handle":"gravity-hf-sensor-calibrated-i2c-uart","url":"/products/gravity-hf-sensor-calibrated-i2c-uart","description":"Measure hydrogen fluoride concentration with a factory-calibrated electrochemical probe that supports analogue, I2C and UART output modes. It is designed for quickly building an HF concentration detector for industrial and environmental protection applications.The sensor includes integrated temperature compensation, a threshold alarm function and 32 modifiable I2C addresses, making it flexible for multi-sensor projects. It works with common controllers such as Arduino, ESP32 and Raspberry Pi, and uses DFRobot’s easy-to-connect Gravity interface.DFRobot provides sample code for getting started, and this kit includes the Gravity HF signal conversion board, HF sensor probe and a Gravity 4-pin cable. It is part of DFRobot’s compatible multi-gas sensor series, which shares the same usage method and data format across supported gases.Features:Strong anti-interference abilityHigh stabilityHigh sensitivitySpecifications:Detection Gas: Hydrogen fluoride (HF)Detection range: 0~10ppmWorking Voltage: 3.3～5.5V DCWorking Current: ＜5mAOutput Signal: I2C, UART (0~3V), analog voltageWorking Temperature: -20～50℃Working Humidity: 15～90%RH (non-condensing)Storage Temperature: -20～50℃Storage Humidity: 15～90%RH (non-condensing)Lifespan: >2 years (in the air)Adapter Plate Size: 37*32mmCompatibility: Arduino, ESP32, Raspberry piSuitable for industrial hydrogen fluoride detection and environmental protection devices where HF monitoring is required.","vendor":"DFRobot","product_type":"Gas Sensor","in_stock":true,"options":[],"variants":[{"id":15818,"title":"Default Title","sku":"DF-SEN0475","mpn":"SEN0475","price":611.95,"on_sale":false,"in_stock":true,"available_quantity":12}]}