The Glas-Col 104A PT612 Digital Count Down Timer and Controller is a microcontroller-based countdown interval timer with digital display. For use with mantles, heating tapes, ovens, and other resistive loads up to 10 amps. Also can be used with stirrers, vortexers, shakers, and other motor-driven laboratory equipment up to 10 amps load capacity. The display is a 4-digit, 1/2" LED. Four timing ranges may be selected from the front panel. At the completion of the timing cycle, a solid-state alarm will sound for 5 seconds. The power to the load receptacle is terminated at the end of the timing cycle. The timer will then reset to the preset starting time. The timing cycle may be interrupted by pushing the start/stop button. Timing will resume from the stopping point when timing cycle is restarted. Ships with lighted on/off switch, circuit breaker protection, 3-wire grounded receptacle, and 3-wire line cord with molded plug. 120V (also available as 240V). Dimensions: 8"w x 6"d x 3-3/8"h.