The kit's device starts the water pump (relay control) when the water level falls below the level set by the measuring probes and correspondingly stops the pump when the level rises above the set level. Control signals are based on the electrical conductivity of the water.

• circuit board dimensions 62 x 41 mm
• required power supply: 12VDC (min. 45mA)

Note! Despite the texts, connect only low voltages. Not to mains 230VAC!