Dart Sensors WZ-S-K Formaldehyde (HCHO) Sensor Module, Detection Range: 0-2ppm - Digital Output
The Dart Sensors WZ-S-K is a pre-calibrated formaldehyde (HCHO) detection module utilizing micro fuel cell technology, delivering direct PPM concentration readings via a digital output signal. Designed for easy integration into air quality monitoring systems, Arduino projects, and industrial PLCs with a 3.3V to 5V DC supply.
Features
- Micro fuel cell sensor for precise formaldehyde (HCHO) detection.
- Digital output provides direct PPM concentration values.
- Factory pre-calibrated for immediate system integration.
- Compact and lightweight design at 4 grams.
- Extended operational lifetime of up to 5 years in air.
Out of stock
The WZ-S-K module employs an advanced micro fuel cell sensing principle. When formaldehyde molecules contact the working electrode (anode), they are oxidized, generating a proportional electrical current. This raw signal is acquired and processed by an onboard microprocessor, which converts it into a precise PPM value for digital output.
Designed for reliable long-term operation, the sensor features a fast warm-up time of under 3 minutes and is built to withstand typical indoor environmental conditions. Its pre-calibrated nature eliminates the need for user-side calibration, simplifying integration into air handling units, smart home systems, and portable detection devices.
Additional Information
| Weight | 0.015 kg |
|---|---|
| Dimensions | 8 × 12 × 2 cm |













