... multi-output(Relay, SSR, 4-20mA ). 85 to 264Va TEH-C series intelligent PID digital controllers adopt advanced micro-process technology, small ... Container: PC+ABS plastic resin casingUse temperature: -5...55°C Storage temperature: -30...85°CAmbient humidity for use and storage ... on/offAlarmsUpper limit alarm, lower limit alarmWorking temperature0 to 50 °C (32 to 122 °F)Working humidity85% RH max, non ...