Feature: 1. FULLY AUTOMATIC CONTROL: Digital display temperature controller is a professional control system developed for the seafood tank refrigeration and heating machine, with automatic intelligent control system support fully automatic cold and warm conversion and defrosting function 2. MULTI FUNCTIONS: Intelligent temperature controller with dual sensors; Automatic conversion refrigeration and heating, refrigeration using compressor; compressor and four way valve are used for heating. Defrosting uses compressors and four way valves 3. LOW POWER CONSUMPTION: Digital display thermostat regulator is a professional temperature control expert, with high accuracy, power consumption ≤3W 4. ACCURATE SENSOR: The intelligent temperature controller has two probe connections, and the input signal is two NTC temperature sensors, which is accurate and efficient 5. SCRATCH RESISTANT ABS: Temperature controller adopt excellent ABS material, possess impact resistance, scratch resistance, environmentally friendly Specification: ​ ​Item Type: Digital Display Temperature Controller Material: ABS Working Voltage: AC220V±10%; 50HZ/60HZ Output Load: Compressor relay, normally open 30A 220VAC, can be directly used on the load below 30A, the rest 4 x 5A 220VAC Power Consumption: ≤3W Working Environment: -10℃~50℃; RH<90% Control Range: -50℃ / -60℉ ~ 50.0℃ / 125℉ Resolution: 0.1℃ from -19.9℃ to 50.0℃, 1 ℃ from -20 to -50 ℃, Accuracy: ±1℃; ±1℉ from -60℉~125℉, Accuracy: 1℉ Input Signal: Two NTC temperature sensors, standard line length 10k x 2meter x 2. Package List: 1 x Temperature Controller2 x Probe Wiring