101020001 Arduino - HCHO Sensor, WSP2110

Description The Grove - HCHO Sensor is a semiconductor gas sensor for volatile organic compounds (VOCs). It uses the WSP2110 VOC sensor, which changes its conductivity when the concentration of VOCs in the air changes. A special circuit converts this conductivity into an output signal that corresponds to the gas concentration. The sensor is characterized by high sensitivity and excellent stability. It detects gas concentrations as low as 1 ppm. It can detect, among others, toluene, formaldehyde, benzene, alcohol, acetone, and more. The product can therefore be used to detect harmful gases in the home. It is a device for detecting specific gases indoors.

Technical Specifications - Operating voltage: 5.0 ± 0.3 V - Gases: formaldehyde, benzene, toluene, alcohol - Concentrations: 1 ... 50 ppm - Sensor resistance (Rs): 10,000-100,000 ohms (at 10 ppm formaldehyde) - Sensitivity: Rs (in air) / Rs (10 ppm formaldehyde) = 5

For Grove users (especially beginners), instructions are available in PDF format. Before using the product, be sure to read the “Preface," “Getting Started," and “Introduction to Grove" chapters!