The WISUALARM DHI-HY-GC20 carbon monoxide detector features an electrochemical CO sensor and a replaceable 3V CR123A lithium battery. Designed for indoor use, it provides audible (85 dB(A) at a distance of 3 m) and visual alarms.

The standard alarm response times are:

• 50 ppm (60–90 minutes)
• 100 ppm (10–40 minutes)
• 300 ppm (<3 minutes)

Current consumption in monitoring mode is ≤20 µA, and alarm current consumption is ≤10 mA. The detector is CE certified and complies with EN 50291-1:2018. Battery life is estimated to be up to 10 years.