Four gas detector Model Name: sound and light alarm Product Price: sound and light alarm features all stainless steel professional design, using a dedicated IC circuit, carbon monoxide gas detector super bright LED, with a stable life length characteristics. May constitute a monitoring alarm system with a variety of gas detection equipment matching. Details of sound and light alarm: Technical Features: All stainless steel casing professional design ultra-small volume of gas gas detector can be life bright light tube low-power technology parameters:?? Supply current sound intensity life:? Continuous alarm 5 hours less than 5 years of life Case Material: Stainless steel Frequency: 1 sec / Alarm: sound and light alarm professional level interface dimensions Dimensions (optional) Weight Temperature Humidity Product Related Keywords alarm http????: / / www.dingdinggroup.com/