Features: Brand New and high quality. Convenient to use It is very helpful and useful Specifications: Temperature measurement range: -9 ~ 99degree Resolution: 1 degree temperature Accuracy: 1 degree Control accuracy: 1 degree Backlash accuracy: 1 degree Refresh rate: 0.5S Input voltage: DC12V / 24V (selection) Measurement input: NTC (10K0.5%) Waterproof sensor Output: one 10A relay Environmental requirements: -10 --60 degree humidity of 20% - 85% Size: 78mm (length) * 50mm (width) Power consumption: quiescent current 40MA pull current: 65MA Color: blue Net weight: 50g Package includes: 1xDigital Temperature Control BoardW1401