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Formaldehyde Sensor, (HCHO), For Arduino & Raspberry Pi Development Boards



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Gravity Series
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SEN0231   Datasheet
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Formaldehyde (HCHO) Sensor

Arduino & Raspberry Pi Development Boards

Gravity Series

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Technical Docs (2)

Product Overview

Gravity formaldehyde (HCHO) sensor is an Arduino & Raspberry Pi compatible module which is the ideal solution for indoor air quality monitor. It can be used to measure HCHO in air. This sensor module is widely used in many air testing applications, such as indoor air quality, real time quality monitoring stations. HCHO sensor module can detect and measure HCHO accurately. Many advantages are available, such as strong anti-jamming capability, high stability, ATC, high sensitivity (up to 0.01ppm) and long life (2 years in air). Integrated with Gravity Interface which is easy to used, wide input voltage, and optional output signal, our module can be almost compatible with all MCU. According our sample codes, an HCHO detector can be made very quickly. This is a formaldehyde (HCHO) sensor module with small size and Arduino compatibility.
  • High stability and sensitivity, Automatic temperature compensation
  • Wide input voltage range from 3.3 to 6V, support DAC and UART output
  • Long life (2 years in air), high resolution (0.01ppm)
  • HCHO target gas, Alcohol and CO interference gas
  • 0 to 5ppm detection range, 0.01ppm resolution
  • Gravity-3 pin interface
  • Operating temperature range from 0 to 50°C
  • Dimension is 38mm x 28mm x 15mm/1.50 x 1.10 x 0.59inch, weight is 22g


Hcho Sensor Module x1, Digital Gravity 3 Pin Cable x1, M3 * 10 Nylon Column x4, M3 * 5 Screw x8.

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