Voltage: 220-240V /Power: 5.5KW 50HZ. Automatic heating: thermostat will first reach the preset temperature, then stop working until the temperature dropped a few degrees, the thermostat automatically turns on. ST series pool heaters are special used for small pool less than 5CBM, massage pool and hot spring to heat and keep warm; Meanwhile, can be a assistant for heat pump in heating. This product adopts latest constant temperature controller- -temperature sensor replaces traditional magnetic flow switch, it improves greatly of trouble free in working time, adaptability of water environment and stability. 1 x Water Heater Thermostat.
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