A formaldehyde sensor using Dart Sensors wafer components is now available as a pre-calibrated module, outputting a ppm formaldehyde value, thus obviating the need for customer calibration. * The only precalibrated formaldehyde module recommended by Dart Sensors * Assembled under licence in China by Shenzhen Prosense Technologies using Dart Sensors electrode parts * Calibration confirmed by a colorimetric assay. * Suitable for smart home, portable devices, wearable devices, air conditioners, air cleaners etc. * Range 0.03 to 2 ppm formaldehyde * High precision, fast response, long service life, low power consumption, high stability * Not recommended for industrial safety/personal monitoring.