Description E1000 is a portable rechargeable single gas detector. It can detect the concentration of combustible gases, oxygen and toxic gases in the surrounding environment, and send out information when an abnormality occurs. Itâ??s easy for replacement and maintenance by the user himself with adopting smart sensor module. It is applicable to explosion-proof places: steelworks, petrochemical plant, oil industry, shipbuilding yard, sewage treatment plant, mine, power supply works etc. Key Features Real-time clock Smart interchangeable sensor module Calibration point adjustable Two alarm level STEL alarm and TWA alarm for toxic gases Visual, audible, vibrating alarm Self protection against high concentration combustible gas Low battery alert Data uploading Password management Self-test when power on Self-diagnostic and self-correction function GPS, GPRS and Man-down function optional