Specifications: Brand Name: GeekTeches Color: White + Black Material: PCB + FR4 Probe Model: Waterproof Probe Display: 22 * 13mm 3 Digits LCD Display Working Voltage: AC110-250V Working frequency: 50Hz Power: 2200W-6000W Buttons: Press-type Membrane Keypad Temperature Measurement Range-40110 Temperature Control Range-40110 Temperature Accuracy0.1 Item Size: 108 * 70 * 48mm / 3.46 * 2.17 * 1.22in Item Weight: 176g / 6.20oz Package Size: 12.5 * 9 * 7.2cm / 4.92 * 3.54 * 2.83in Package Weight: 221g / 7.79oz Features: A useful temperature controller for controlling temperature intelligently. Suitable for aquarium, aquaculture, greenhouse etc. Used for temperature controlling in seafood aquaculture, transportation, etc. Temperature sensing probe with waterproof sensor. Light weight and simple appearance. High display accuracy with 3 digits LCD display. Support brown-out storage(Set parameters is still valid after short circuit). Note: This controller can not be used with air conditioner or compressor.