1. Model: ETC-974 2. Temperature measure range: NTC probe: -50~110 Celsius (-58~230 Fahrenheit); PTC probe: -55~140 Celsius (-67~284 Fahrenheit) 3. Display resolution: 1 Celsius/0.1 Celsius (with the switch mode between integer and decimal) 4. Accuracy: NTC: 0.5 Celsius (-30 Celsius~50 Celsius); other 1 Celsius; PTC: 1 Celsius (-30 Celsius~50 Celsius); other 2 Celsius 5. Probe type: NTC (-50 Celsius~120 Celsius); PTC (-50 Celsius~150 Celsius) 6. Power supply: 230VAC±10%; 50/60Hz 7. Rated current of the relays (refrigeration, defrost and fan): 8A/220VAC 8. Use temperature: -5 Celsius~55 Celsius 9. Relative humidity: 10%-90%RH (not condensing) 10. Storage temperature: -30 Celsius~85 Celsius 11. Input: 2 NTC sensor 12. Colour: Black+red 13. Material: plastic 14. Size: 77x34.5x58mm 15. Sensor length: 2M (include the probe) 16. Package Contents: 1 x Temperature Controller, 1 x NTC probe, 1 x PTC probe. Only the above package content, other products are not included. 17. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.