General temperature monitoring Low cost protection Easy to install Small, unobtrusive Surface Mount Available by special order in 9deg F increments from 23deg F to 140deg F. The G.R.I. Temperature Sensor is a surface mount switch and comes equipped with three feet of 2 conductor cable to assist in installation. The T8050 can be mounted almost anywhere and their small size allows them to be very unobtrusive. Mounting hardware is included. When the normal ambient temperature in the monitored area is above the trip temperature of the Sensor, it must be connected in a Closed Circuit alarm loop. When the desired monitored temperature is below the trip temperature, the Sensor must be wired in a Open Circuit Loop