Tekmar® Mixing Control, 24 VAC at 50/60 Hz Power Supply, 3 V-A at 24 VAC VA, 10 kohm NTC Thermistor at 77 deg F Sensor, User Interface: Push Button LCD, 32 - 104 deg F Ambient Control, 2.4 A at 120 VAC, 1/6 hp Variable Pump, 5 A at 120 VAC, 1/6 hp Relay, 2 V-A at 24 VAC Mixing Demand Contact, NEMA 1 Enclosure, PVC/Plastic, White, 2-7/8 in W x 4-3/4 in H x 1-7/8 in D