6.Output of solenoid valve
7.Output of relay
8.With LCD display and voice alarm
Carbon monoxide gas:
30ppm, alarm after two hours
50ppm, alarm within 60~90 minutes
100ppm, alarm within 10~40 minutes
300ppm, alarm within 3 minutes
Alarm Indicator: Red LED flash
Failure Indicator: Yellow LED on & beeper long-buzz