* Temperature-measurement range 0 … +183 °C
* Temperature sensor Pt 100 or Pt 500 paired as per IEC751, with 2- or 4-wire connection
* Power supply 3 V lithium battery, service life > 6 years at ambient temperature of < 45 °C * Power supply 230 VAC, 50/60 Hz, max. 7 mA, approx. 0.35 V * Mains supply 230VAC ±10% 50/60Hz, <0.5VA.
CALEC® ST is a communication-enabled energy calculator designed for demanding metering areas such as heating installations, air conditioning solutions, combined systems for heating and air conditioning, cooling applications or solar heated systems in apartment blocks and larger buildings.