... heater,washing machine, firer, kitchen equipment, etc. 2) Designed temperature: -30 centigrade to +350 centigrade 3) On-off temperature difference: 2 ... 4) Service temperature control range: 0 to 40, 30 to 85, 30 to 90, 30 to 110, 50to 300, 50 to 320 centigrade 5 ...