S4S Guardian®1 - Old Unused Stock 24Vdc

A fixed single point alarm unit that meets the requirements for continuous economic and reliable monitoring of gas levels in a wide range of environments from commercial premises through to heavy industrial applications that may require hazardous area sensing. 

Measuring Range:
Combustible Gas - LEL, % Vol, ppm
Toxic Gas - ppm
Oxygen - % vol - Depletion or Enrichment
Any 4~20mA source input signal

Indicators:
Two line alpha numeric back lit display
Power - Green LED.
Alarms 1, 2, 3 - Red LEDs
Fault - Amber LED
Alarms inhibit - Amber LED

Audible Alarm:
1, 2, 3 and Fault Alarms - mutable
85dB @ 10cm