Perry 1CRCR209/S Power supply 3V – 2x1.5V AA alkaline 2” 2/3 LCD display Output 1 potential-free changeover contact: 5(3)A/250V approx ON/OFF operation with adjustable differential from 0.3/0.5/0.7/0.9°C or modulating with control period 7/10/15/20 min Temperature set adjustment shown on the...