Range 40-80°F Internal Sensing Element Indicating Thermometer
External Sensing Bulb Range 20-90°F The WR Series Room Thermostats are designed to directly control individual heaters or, by using an external contactor, can control several heaters. The WR-90 is particularly useful for maintaining lower temperatures (in garages, warehouses, etc.) and avoiding unnecessary heating costs.
Each design has accuracy and provides long reliable service with a 3 degree control differential. Both units are heavy duty, single stage, with a SPST line voltage snap-action switch and are finished with tough, metallic gray enamel housings.
WARNING: Hazard of Fire.
The WR thermostats are designed for temperature control service only. Because they do not fail-safe, they should not be used for temperature limiting duty.