Connectable with various types of gas detector
Large-scale digital concentration display and warning light can be applied for remote viewing
Gas concentration display with 3-digit, 4-digit,or Bar-graph (32 segment, 3-color LED)
3-color display according to alarm stages (Green, Yellow, Red)
3-stage alarm, 1-trouble LED display and relay contact output
Easy configuration of monitoring system with RS-485 Modbus isolated serial data communication(Option)
Programmable alarm setting (Level, Time delay)
Peak hold
Self diagnosis

GTC 500 Series

Operation display	6-LED(Power, 3-stage alarm, Trouble, Stand-by for maintenance)
Measuring display	4-Digit 0.315”FND
Measuring range	1~999 (programmable) / %LEL, ppm, %vo
Alarm display	Visual : 3-stage alarm, Trouble LED, Warning Light Audible : buzzer
Alarm output signal	3-Stage Alarm, Trouble/ AC250V 3A relay contact (SPDT) Shut-off Valve control signal (DC 12V)
Alarm level set	Programmable with in detection range
Input signal	4-20mA DC( 2-wire or 3-wire)
Output signal	4-20mA DC Isolated RS-485 Communication Modbus (option)
Reset signal	Reset switch and remote control
Program set mode	Alarm value (1,2,3 alarm) Alarm time (instant & delay) 1~30min
Operating temperature	-20℃ ~ +60℃
Operating humidity	5~99% RH(non-condensing)