DFRobot Gravity HF Sensor (Calibrated) &#8211; I2C, UART and analog

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SKU: rz2439923 Category: Gas and Dust Sensor

Description

This is a sensor that detects hydrogen fluoride concentration and supports three output modes: analog, I2C, and UART. The probe has been calibrated at the factory, which can quickly and accurately measure the concentration of hydrogen fluoride in the environment. Can be widely used in the detection of hydrogen fluoride in industrial and environmental protection fields.

The probe adopts the electrochemical principle, has the characteristics of strong anti-interference ability, high stability, high sensitivity, etc., and the service life is as long as two years. The sensor has 32 modifiable I2C addresses, an integrated temperature compensation algorithm, and a threshold alarm function, It has good compatibility with mainstream main control devices such as Arduino, ESP32, and raspberry pie. The easy-to-use Gravity interface, coupled with our sample code, can quickly build a hydrogen fluoride concentration detector.DFRobot has introduced 12 gas detection sensors in this series, CO, 02, NH3, H2S, NO2, HCL, H2, PH3, SO2, O3, CL2, HF, which are used in exactly the same way and data format, so you can combine them according to your needs.

Features:

Factory calibrated, accurate measurement
High sensitivity, low power consumption
Excellent stability and anti-interference
Three output modes: I2C, UART and analog
Long service life(2 years)
Compatible with 3.3~5.5V main controllers
32 modifiable I2C addresses
Reverse connection protection
Temperature compensation
Threshold alarm
It use I2C, UART and analog communication protocol to make smooth commutation between sensor and micro-controller.

Specifications:

Detection Gas: Hydrogen fluoride (HF)
Detection range: 0~10ppm
Working Voltage: 3.3～5.5V DC
Working Current: ＜5mA
Output Signal: I2C, UART (0~3V), analog voltage
Working 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*32mm
Compatibility: Arduino, ESP32, Raspberry pi

Package Includes:

1 x DFRobot Gravity HF Sensor (Calibrated) – I2C, UART and analog

Additional information

Detection Gas	Hydrogen fluoride (HF)
Detection range	0~10ppm
Working Voltage	3.3～5.5V DC
Working Current	＜5mA
Working Temperature Range (°C)	-20 to 50
Working Humidity Range	15～90%RH (non-condensing)

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Shipping & Delivery

Shipping and Delivery Policy

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7. Refund Policy:

Refunds will be issued only for canceled orders before shipment or wrong/damaged items received (subject to investigation).
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Output Signal	I2C , UART (0~3V) , analog voltage
Lifespan	＞2 years (in air)
Working Humidity Range	0-99% RH (non-condensing)
Working Temperature Range (°C)	-20°C ~ +50°C
Product Dimensions	32mm x 27mm/1.26 x 1.06 inch
Response Time ( μS)	＜5S
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Working Voltage	3.3～5.5V DC
Working Current	＜5mA
Output Signal	I2C , UART (0~3V) , analog voltage
Working Temperature	-20～50℃
Working Humidity	15～90%RH (non-condensing)
Storage Temperature	-20～50℃
Communication Protocol	I2C , UART and analog
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Working Current	＜5mA
Output Signal	I2C , UART (0~3V) , analog voltage
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Minimum impedance between Pin#2,3 and GND	2.5MΩ
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Load Resistance	variable 0.45kΩ min.
Heater Resistance (Ω)	approx 83Ω at room temp. (typical)
Heater current (mA)	42±4mA
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