220v Brass circulation pump 3 speed, for solar water heater or for hot water heating system wh52 Then the LED will flash

Then the LED will flash once every 48 seconds (the sensor transmission update period)

* Wireless Transmission & Simple LED Indication: The probe body has no screen

-40 ~ 60℃ (-40 ~ 140℉)

back light is turned on only when button is pressed and auto time out is 5s

220v Brass circulation pump 3 speed, for solar water heater or for hot water heating system wh52 Then the LED will flashThis listing includes: 1 unit of circulation pump for hot water heating system, 220V, 3 speed. Size: G1 (therere connectors (G1 to G3 4) in the package) Application It can be used for single and double heating systems and large scale mixed loop system. It also can be used to supply water and add pressure for mansions of city, villa of suburb house to match with industrial equipment, to supply water in cycle for cooling air condition, boiler and solar