1.High-Precision Water Level Monitoring: With a three-wire design, the blue wire monitors high water levels, the red wire monitors low water levels, and the white wire ensures stable signal transmission.
eBay
DC 12V Automatic Water Level Sensor Controller Switch Liquid Level Detection Sensor Control Relay for Tower Tank Pool Pump Motor
Aliexpress UK
If the water in the pipe cannot flow back the pump will not work. There is air in the pipe. 【Small Size and Hight Lift】 With a built-in water level sensor, the drain pump can be made small enough to be perfect for tight spaces such as outside air conditioner drains, dehumidifiers, air coolers, HVAC condensate, furnaces and a variety of applications.
eBay
XKC-Y21 Low-Cost Non Contact Liquid Level Sensor Module Water Level Sensors without Enclosure for Smart Home Apliance Products
Aliexpress UK
Load Resistance: less than (U-10)/0.02Ω;. Output Signal: 4-20mA. Compensation Temperature Range: -10c—80c. Stainless steel probe, small size, light weight, anti-vibration, stable and precision. We'd like to settle any problem in a friendly manner.
eBay
1Pc 3.3V-5V Non Contact Water Level Sensor Capacitive Liquid Sensor Liquid Detection Switch Controller Water Level Detector Tool
Aliexpress UK
1.High-Precision Water Level Monitoring: With a three-wire design, the blue wire monitors high water levels, the red wire monitors low water levels, and the white wire ensures stable signal transmission.
eBay
AD 100mm ~ 500mm Fuel Level Sensor For Car Boat Motorcycle 0~190Ohm Fuel Level Gauge Fuel Sending Unit Fuel Sensor In The Tank
Aliexpress UK
REMOVABLE STAINLESS STEEL PROBE: Water liquid level transmitter has 45 degree angle impact protection, the probe can be removed with prevent lock structure, easy to clean. SAFE AND WATERPROOF: Liquid level transmitter with multi layer IP68 waterproof protection, to ensure the use of safe and long running, pipe and cable length of about 5m.
eBay
Moray ME201W Tuya App Tank Alarm Depth Monitor Wireless Water Level Sensor Gauge Ultrasonic Diesel Water Level Sensor
Aliexpress UK
1.High-Precision Water Level Monitoring: With a three-wire design, the blue wire monitors high water levels, the red wire monitors low water levels, and the white wire ensures stable signal transmission.
eBay
Universal Fuel Float Sensor Fuel Sender 0~90ohm Tank Sending Unit Oil Level SENSOR for Car Marine Fuel Level Indicator Gauge 12V
Aliexpress UK
SKF float submersible probe WS32-2+B46 float switch WS322350 length 350 mm Sale only to commercial Customers Need higher quantities or additional products? à Send us an inquiry Express shipping possible à (Order) until 14:30h 30-day, free trial period à Longer test phases possible Functional guarantee when commissioning our products à with valid tax ID EN: Purchase on account possible à contact us in advance! Subscribe to Newsletter Many branded products Always the highest quality Shipping & payment methods Message to: GM Automation Service times: Mon.-Fri. 07:00-16:00 Over 25,000 products in stock Response time < 24h Goods dispatch within 24 hours Invoice with VAT shown Message to: GM Automation Service times: Mon.-Fri.
eBay
DC 3V-5V Rain Water Level Sensor Module Detection Liquid Surface Depth Height for Arduino DIY Compatible With UNO MEGA 2560
Aliexpress UK
1.High-Precision Water Level Monitoring: With a three-wire design, the blue wire monitors high water levels, the red wire monitors low water levels, and the white wire ensures stable signal transmission.
eBay
ME201WZ Wireless Zigbee Tuya Mobile App Detector Water Fuel Oil Liquid Level Sensor Alarm Indicator Remote Tank Monitor
Aliexpress UK