The PowrTwin Temperature Controller is capable of controlling two separate circuits independently. Like the PowrTrol, the PowrTwin is a solid-state, proportional-voltage controller that allows the precise manual control of laboratory heating equipment such as heating tapes, cords, and mantles. The PowrTwin has an output range adjustable from 5-100% of rated voltage. The PowrTwin can be used on the bench top. Supplied with lighted on/off power switch, circuit breaker protection, 3-wire load receptacle, and 3-wire line cord. Dimensions: 8"w x 6"d x 3-3/8"h.