The Grove - HCHO Sensor is a high-sensitivity semiconductor gas sensor designed to detect volatile organic compounds (VOCs) such as formaldehyde (HCHO), toluene, benzene, alcohol, and acetone. Powered by the WSP2110 sensing element, it offers fast response, good stability, and long life, making it ideal for improving indoor air quality and detecting harmful gases in home and industrial environments. Key Features High Sensitivity up to 1 ppm: Accurately detects low concentrations of VOCs like formaldehyde, benzene, and alcohol. Quick Response and Recovery: Enables real-time gas concentration detection. Stable and Long-Lasting Performance: Minimal sensor value fluctuations over time. Simple Detection Circuit: Gas concentration increases conductivity for easy signal processing. Grove Compatible Interface: Plug-and-play design for easy integration into Grove-based systems. How It Works The sensor's conductivity changes with the concentration of VOC gases in the air. A simple circuit converts this conductivity into an output signal corresponding to the gas concentration, allowing easy real-time monitoring. Applications Automatic Exhaust Systems Air Purifiers Harmful Gas Detection for Domestic Use Indoor Environment Quality Monitoring Smart Home Applications Specifications Parameter Value Operating Voltage 5.0V ± 0.3V Chip WSP2110 Detection Gases Toluene, Formaldehyde, Benzene, Alcohol, Acetone, etc. Detection Range 1 – 50 ppm Sensor Resistance (Rs) 10kΩ – 100kΩ (in 10ppm HCHO) Sensitivity Rs(air) / Rs(10ppm HCHO) ≥ 5 Part List Grove - HCHO Sensor × 1 Grove - Cable × 1 Expand to Industrial Solutions Upgrade your prototype to an industrial-grade solution using the SenseCAP S2110 controller and S2100 data logger to turn Grove modules into LoRaWAN-compatible devices. Explore the SenseCAP S210x Series for durable, IP66-rated, battery-powered sensors suitable for professional deployments.
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