This control is designed to regulate the input voltage through the selector knob on the unit. To operate plug a resistive load into the receptacle on the back of the unit, and adjust the control dial to the desired level. The higher the selected number on the dial, the higher the voltage and hotter the load will get. This unit comes with a lattice support bracket, which is ideal for mounting to maximize space.

Please Note: Effective March 2026, the Digi-Sense Variable-Voltage Output Controller has now been rebranded Cole-Parmer under Model number TC1501. All the same great features and specifications, just with a new and improved look.