Intelligent imported Catalytic Combustion or Electrochemical sensor; Audible-Visual-Vibrating alarm; Large LCD real-time display; simple operation; Quick and accurate response to the konwn gas.

Features
1. Small in size and light in weight
2. Continuously LCD real-time display of gas concentration and composition
3. Audible visual vibration alarm
4. Two stage alarm threshold can be adjusted according to actual needs
5. Simple automatic calibration program
6. Fully functional self-testing: sensor, integrity of battery and circuit, acoustic & visual & vibration three-stage alarm.

Technical Specifications
Sensor Type 1. Catalytic Combustion sensor
Detecting Range 0-100% LEL
Alarm Threshold Low: 25% LEL   High: 50% LEL
Sensor Type 2. Electrochemical sensor
Detecting Range Referring to the gas parameter list
Alarm Threshold Referring to the gas parameter list
Sensor Type 3.   Electrochemical sensor
Detecting Range 0~30.0% vol
Alarm Threshold Low: 18.5% vol   High: 23.5% vol
Sensor Type:     Catalytic Combustion sensor(Combustible gas); Electrochemical sensor(Toxic and Oxygen)
Alarm Type low & high alarm, sensor alarm, battery low alarm, prompt tone, automatic shutdown alarm
Acoustic Alarm Variable-frequency pulse alarm which can reach volume of 95 dB in a distance of 1 foot (0.3 meters)
Visual Alarm Two red LED omnibearing visible glittery light alarm
Vibration Alarm Pulsant signals alert the gas alarm or any other alarm status
Display Mode     Alphanumeric large LCD displays the real time gas concentration and alarm stage
Backlight Automatically activated when working in poor lighting environment or alarm alerts or button pressed
Self-checking Function Self-checking after start up.
Calibration Function Automatic zero point calibration; Automatic measurement range calibration.
Power Supply Rechargeable lithium battery
Sensor life 2 years
Weight          211g
Dimensions 126mmx66mmx33mm
Remarks: The detecting range and alarm threshold value can be adjusted according to customer's request.