The model AE-170 series is a single gas detector designed to detect flammable gas, toxic gas for occupational, prevention against combustion and toxicosis in industrial. This unique gas detector has some advantageous features like menu panel for each step operation, self-test for battery, circuitry and sensor, alarming level can be specified, overload volume protection, audio video and vibration alarming, crocodile clip, eplaceable sensor module, water, dust, explosive proof, peak, STEL, TWA level indication, password management, provider power adapter charger.