The GRH8800 Humidity Sensor is ideal for use with all Sensaphone Dialers, or as a stand-alone monitor.
This unit will monitor for high and low humidity violations. The GRH8800 also has a relay output which may be used to activate sirens, strobes or connected to any of Sensaphone telephone dialers.

• Low Cost
• Non-Volatile Memory
• Single Sensor or a Remote Probe up to 500’
• Min - Max Temperature Range No Probe -10ºF to 176ºF
• Min - Max Temperature Range With Probe -40ºF to 185ºF
• Operates with 7.5 VDC minimum to 15 VDC maximum