Features: small volume and convenient installation, probe fault indicator, 220v power supply. Power consumption: less than 3w Measurement range:-30~+110¡ã c Accuracy: 1% Display eee ntc sensor failure (short circuit or open circuit) Power supply: 220v Dimension: 64(l) x31(w) Mounting hole dimension: 58.4(l) x 25.7(w) mm Display eee ntc sensor failure (short circuit or open circuit) Power supply: 220v Dimension: 64(l) x31(w) Mounting hole dimension: 58.4(l) x 25.7(w) mm