Mantle-Minder temperature controller from Glas-Col. Time proportioning, 1/16 DIN, automatic control for resistive heating loads up to 1800 watts at 120 volts. Features a detachable immersion J thermocouple with 6¿ stainless steel probe, a lighted ON/OFF power switch with auxiliary indication, load and thermocouple receptacles located on front panel, and a set-point dial calibrated in 20 degree C increments. Fused to protect small loads. Operates on 120 VAC, 50/60 Hz input. Range is 0-750 degrees C. Ambient temp range is 30-130 degrees F. Accuracy is plus/minus 1.5% of full scale.