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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.
Water level reduction: When the water level is lower than the ''High level'', the water pump does not work and the water level continues to decrease. When the water level is lower than the ''Low water level'', the water pump starts to supply water to the water tower.

Probe making
1 Prepare some wires (ordinary household wire and cable)
2 Strip the wires 10-20 mm at both ends
3 Connected probe (wire)

30A High Power 12V Water Level Automatic Controller Liquid Sensor Switch Solenoid valve Motor Pump automatic control Relay Board
$27.90
Sale price
$27.90
Regular price
$0.00
Description
SPECIFICATIONS
Brand Name: eletechsup
Bus Interface: Water level sensor (wire)
Certification: NONE
Choice: yes
Contact Load: High Power
EU LVD Voltage: Low voltage: Below 50Vac or 75Vdc
High-concerned chemical: none
Model Number: LC55B01
Operating Voltage: DC 12V/AC 9V-12V
Origin: Mainland China
Power Source: DC
Protect Feature: Sealed
Standby current: 11MA
Theory: Electromagnetic Relay
Use: General Purpose
Voltage: 12V
is_customized: Yes
semi_Choice: yes
Product Name: 30A High Power 12V Water Level Automatic Controller Liquid Sensor Switch Solenoid valve Motor Pump automatic control Relay Board
Package inlcuded:
1 x DC 12V-15V AC 9V-12V 30A Liquid Level Controller Sensor Module

Description:
1 Working voltage: DC 12-15V(AC 9-12V)
2 Standby current 11MA
3 Working current 82MA
4 Size: 67mm X 33mm X 25mm
5 Weight: 42 g
6 Maximum load: 30A /250VAC,30A/120VAC,30A/30VDC
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
1 Working voltage: DC 12-15V(AC 9-12V)
2 Standby current 11MA
3 Working current 82MA
4 Size: 67mm X 33mm X 25mm
5 Weight: 42 g
6 Maximum load: 30A /250VAC,30A/120VAC,30A/30VDC
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 Fish tank Water Changer System
Conductive liquid automatic control
Automatic feeding system for poultry and livestock
Farm automatic water supply system
And other occasions that require automatic water supply and water exchange.
Solenoid valve water pump motor automatic control
Home water tower automatic water supply system
Aquarium Fish tank Water Changer System
Conductive liquid automatic control
Automatic feeding system for poultry and livestock
Farm automatic water supply system
And other occasions that require 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.
Water level reduction: When the water level is lower than the ''High level'', the water pump does not work and the water level continues to decrease. When the water level is lower than the ''Low water level'', the water pump starts to supply water to the water tower.

Probe making
1 Prepare some wires (ordinary household wire and cable)
2 Strip the wires 10-20 mm at both ends
3 Connected probe (wire)

Free Shipping Over $199
- Standard Shipping: Standard Shipping (12–18 Business Days)
- Express Shipping: Expedited Shipping (5–9 Business Days)
- Free Shipping: Orders over $199 qualify automatically
- Tracking: Full tracking number provided for all orders
30-Day Return Policy
- Returns: 30-day hassle-free return window
- Condition: Items must be unused and in original packaging
- Refund: Full refund processed within 3-5 business days
Why Choose Us?
- Factory Direct: ISO/TS 16949 certified manufacturer
- Quality: 100% electrical continuity tested before shipment
- Experience: 15+ years in automotive connector industry
- Support: Professional technical support available
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