Table 2.

Items measured, together with their range and precision.

Items	Range	Precision
Temperature	− 40 °C to 110 °C	+ 0.1 °C
Power consumption	0–1000 W	1 W
Voltage	0–240 V	0.1 V
Current	0–10 A	0.1 A
Pressure	0–150 MPa	+ 0.7 kPa
Refrigerant flow meter	0–100 cc/s	0.1 cc/s