Description BZ100N single gas detector that can detect the concentration of CO, H2S and O2 in the ambient air. With ultra-low-consumption and lightweight design, it is the smallest detector from China, only the size of a palm. It is suitable for petroleum, chemical, metallurgy, mining, underground pipeline, tunnel and other industries. Key Features The smallest detector from China (palm size) 2-year disposable gas detector Low-consumption 16-bit MCU to ensure long battery life Wide viewing-angle graphic LCD display Configurable high and low alarm points, two levels of alarm Battery low voltage alert Automatic calibration to reduce detection error Data upload function (Bluetooth) STEL and TWA alarms for toxic gases Automatic self-test function after power-on ATEX and IECEx approved