【Dual relay output】One output heats, the other cools. Feed : 220 V AC ± 15%, output: 10A 220Vac max. This thermostat socket can be used in aquariums, refrigerators, home incubators, incubators, greenhouses and other temperature control systems. 【Easy to program】Set the target temperature and the heating or cooling difference, this digital thermostat outlet will operate in heating or cooling mode as programmed. Temperature control range: -40℃~100℃, Accuracy: ±1℃. If necessary, the temperature can be calibrated. 【Audible alarm and delayed start protection】Set the high temperature threshold and low temperature threshold, when the temperature exceeds the threshold, the thermostat socket emits a beep and the alarm indicator flashes. You can also set a compressor start delay to protect the cooling unit. 【Additional Functions】 Large LCD display with backlight, temperature calibration, reset function, data storage of all settings saved when power off. 【UNIQUE DESIGN YOU'LL LOVE】 95cm waterproof temperature probe, can be placed in water for a long time, perfect for aquarium; 2 double-sided adhesive tapes to fix the screen and a small suction cup to fix the probe. We only sell thermostats, not other items in the picture. En Due to differences between different monitors, the pictures may not reflect the actual color of the item. Due to manual measurement, please allow slight errors in size.