Combines gravity convection radiant warm wall heat and the convenience of an LED temperature display. Temperature is controlled by a hydraulic thermostat and a separate thermostat provides over temperature protection. Range: Ambient +5° to 65°C ±0.5°C. Includes 2 plated shelves (6 on 45090-03) adjustable on 1/2 inch centers, tempered inner glass observation door, internal electrical outlets on 45090-02 and 45090-03, resettable circuit breaker and 3 wire cord with plug. All are UL listed. For 110V.