Working voltage referenced on the product casing.Measurement error of ±0.5°C within the temperature range of -40°C to 120°C.Temperature control accuracy of 1°C with a display accuracy of 0.1°C.NTC25°C=10K B3435 1% soil, 1 meter long, regardless of positive or negative.Power supply voltage of DC12~72V; working environment temperature of -20°C to 70°C with 90% RH humidity without condensation.Regulator Controller 10K NTC Sensor ProbeSpecifications:1. The working voltage is referenced on the product casing;2. -40°C ~120°C: Measurement error ± 0. 5 ° C3. -40°C~120°C: Temperature control accuracy: 1°C display accuracy 0. 1°C4. NTC25°C=10K B3435 1% soil (1 meter long, regardless of positive or negative5. Power supply voltage: DC version is DC12~72V6. Working environment: Temperature: -20 ° C ~ 70 ° C, humidity: 90% RH no condensation7. Product size: 75*85*35 (width, depth and height) mmInstructions:Mode setting: Press and hold the S key for 3 seconds to enter the program menu code mode, which displays the current code "HC" and the code value "H". Press the S key to cycle through the HC-CP-LA-HA-PU-CA parameter code. Press the or key to change the value of the code. After the operation is stopped for 5 seconds, the parameter will be automatically saved and exited. (Press and hold the or key for 2 seconds to quickly adjust the value)Control temperature setting: Short press S key (not more than 2 seconds) to display the factory default control temperature. Press or key to change the value. After 5 seconds of stop operation, the parameters will.Color: BlackMaterial: ABSPackage Contents:1*digital temperature controllerOnly the above package content, other products are not included.Note: Light reflection 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.