Float switch (optional). - Maximum switching current: 0.5A. - Used to sense the level of the liquid in the tank. - Light weight, simple working principle and high reliability. - Installation : vertical installation.
eBay
XH-M131 DC 5V 12V 24V Water Detector Relay Module Water Leakage Water Leak Water level Sensor Water Leakage Alarm
Aliexpress UK
This Liquid Water Level Sensor can be used to detect the liquid levle in tube/pipe. We'd like to settle any problem in a friendly manner. It's just take you 1 minute. Tiny in size, easy to install.
eBay
Aquarium Auto ATO Automatic Top Off System Dual Sensor Water Filler water Level Controller Fish Tank Auto Aqua add Water Pump
Aliexpress UK
A float switch is a device used to sense the level of liquid within a tank, it may actuate a pump, an indicator, an alarm, or other device. 1 Pcs Liquid Float Switch. Switching current (Max): 0.5A. Contract resistance (Max): 100 OHM.
eBay
4-20mA Pool Liquid Level Sensor Deep Well Pump Deep Water Level Sensor
Aliexpress UK
When the pool (water tower) pump is automatically turned on. It has the characteristics of simple wiring, low power consumption, large switching quantity, strong anti-interference ability and high stability.
eBay
Level Sensor Stainless Steel Float Switch Tank Right Angle Water Level Sensor L Type Float Switch Controller
Aliexpress UK
When the pool (water tower) pump is automatically turned on. 1 Water Level Detection Sensor. It has the characteristics of simple wiring, low power consumption, large switching quantity, strong anti-interference ability and high stability.
eBay
1m 2m 3m 5m Submersible Water Level Sensor 4-20mA tank well pool 0-10V RS485 Level Sensor Transmitter
Aliexpress UK
A float switch is a device used to sense the level of liquid within a tank, it may actuate a pump, an indicator, an alarm, or other device. 1 Pcs Liquid Float Switch. Switching current (Max): 0.5A. Contract resistance (Max): 100 OHM.
eBay
Customized Size Fuel Level Sensor 0-1500mm Boat Car Fuel Sending Unit Stainless Steel Oil Level Sensor 0-190ohm Water Fuel Gauge
Aliexpress UK
When the pool (water tower) pump is automatically turned on. 1 Water Level Detection Sensor. It has the characteristics of simple wiring, low power consumption, large switching quantity, strong anti-interference ability and high stability.
eBay
DC 12V Automatic Water Level Sensor Controller Switch Liquid Level Detection Sensor Control Relay for Tower Tank Pool Pump Motor
Aliexpress UK
Installation : vertical installation. Used to sense the liquid level in the tank. Due to the difference of different monitors, the picture may not reflect the actual color of the item. Light weight, simple working principle and high reliability.
eBay
Moray ME202WZ 10M Zigbee Tuya Mobile App Smart Home Wireless Submersible Liquid Level Sensor Water Level Sensor
Aliexpress UK