Introduction of BW M5 ozone gas detector: GasAlertMicro 5 IRCO2,H2S,CO,O2,SO2,PH3,NH3,NO2,HCN,CL2,CLO2,O3 and combustible gas M5 five-in-one multi-gas detector. The GasAlertMicro 5 IR portable gas detector can simultaneously monitor and display up to five harmful gases, including carbon dioxide (CO2), oxygen (O2), combustible gases (% LEL) and a variety of single electrochemical toxicity sensors. When there are low, high, TWA or STEL alarm conditions, the compact and lightweight GasAlertMicro 5 IR activates sound, visual and vibration alarms. Highly configured to meet a range of application requirements, the BW M5 ozone gas detector is a diffusion or suction device with alkaline or NiMH rechargeable and hot replaceable battery packs, and optional data recording capabilities. Its features generally include: cue tone, automatic calibration, full-function self-test and more functions that can be set up and used in the field.