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.
KT-603 Combustible/Toxic/Oxygen Gas Detector responds quickly and accurately to COMBUSTIBLE/TOXIC/OXYGEN GASES and emits audible-visual-vibrating alarms in time if gas leakage or danger occurred(Oxygen concentration is too high or too low). This instrument works well in a harsh operating environment which is broiling, cold, damp, dusty, etc. Detection and alarm will continue even if the detector is dropped or crashed.

Features
1. Small in size and light in weight
2. Continuously LCD real-time display of gas concentration and composition
3. Rechargeable lithium battery
4. 95 dB acoustic alarm and two wide-angle optic alarm
5. Built-in vibration alarm which is applied for noisy environment
6. Two stage alarm threshold: the low and high alarm points can be adjusted according to actual needs
7. Simple automatic calibration program and plug-in replaceable electrochemical sensor
8. 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% vol
Alarm Threshold  Low: 18.5% vol   High: 23.5% vol
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