Connect heater and cooler at the same timeNo more frequently changing the wiring between heater and cooler. This temperature controller with sensor has 2 relays. Compared to other 1 relay temperature controllers, you can wire 2 devices (heating and cooling) at the same time. Please note that there are no sockets, wiring required. Keep the temperature within the desired rangeIt is on/off control mode. Control the temperature by adjusting the temperature setting and difference, heating and cooling mode can be automatically switched. Make full use of the STC microcontroller and NTC probe to make this temperature controller have high accuracy. High PrecisionMade of sturdy and anti-flame ABS plastic shell with integrated structure, this thermostat dual relay digital is safe and energy efficient. Power Consumption: 3W, Temperature Control Range: -50~99, Accuracy: 1, Power Supply: 110-220Vac 50Hz/60Hz, Output: 2 Relays, Cool/Heat (10A/250Vac) . MultifunctionalThis incubator thermostat supports temperature calibration, compressor delay protection, alarm when the temperature exceeds the temperature limit or in case of sensor error, all parameter settings can be saved after restart. 2m Waterproof ProbeThis digital temperature controller can be used in humid and water environment. Such as aquarium, seafood machine, aquaculture, hatchery, terrarium, vivarium, seedling heating mat, incubator, brewing, freezer, water tanks, refrigerator, industrial cooler, fermentation, industrial equipment, etc. Specification: Temperature control range: -50 ~ + 99 C Difference set value: 0.3 ~ 10 C Accuracy: 1 C Measuring input: 2m waterproof probe Power supply: 220VAC 50 / 60Hz Output relays: Two Cool relays 10A / 250VAC; Heat 10A /250VAC Size: 75 mm * 34 mm * 85 mm Power consumption: 3W Sold by grid cool store