3pcs AC/DC 12V Fish Tank Aquarium Automatic Water Supply Controller Water Level Sensor Solenoid Valv

Description:? ?? 1. Working voltage: DC 12-15V(AC 9-12V) 2. Standby current 10MA 3. Working current 40MA 4. Size: 54mm X 27mm X 19mm 5. Weight: 23.5 g 6. Maximum load: 10A / 250VAC, 10A / 125VAC, 10A / 30VDC, 10A / 28VDC, 10A / 12VDC ? Note: ? ? ? Package does not contain probe (wire). No need to use a dedicated probe, the probe can be made using household wires For safety, use an AC/DC power supply with good isolation ? Application: ? Home water tower automatic water supply system Aquarium Fishtank Water Changer System Conductive liquid automatic control Automatic feeding system for poultry and livestock Farm automatic water supply system And other occasions that require an automatic water supply and water exchange. Solenoid valve water pump motor automatic control ? Interface description: ? HIGH: Upper limit probe OUT: Output probe LOW: Lower limit probe IN+: Power terminal 1 (regardless of positive and negative) IN-: Power terminal 2 (regardless of positive and negative) NC: Relay normally closed contact COM: Relay common contact NO: Relay normally open contact ? Working principle:? ? The water level rises: When the water level is lower than the ''Low level'', the water pump starts to supply water to the water tower; when the water level is higher than the ''High level'', the water pump stops supplying water. ? Package included: ? 3 x LC25A01 Fish tank Aquarium automatic water supply controller