Sensitivity 5-100kΩ adjustable. Allowable distributed capacitance of electrode cable (maximum): 800 nF (sensitivity is 5 kΩ), 100 nF (sensitivity is 100 kΩ). - Ultra-small size, only 18mm width, 35mm rail installation.
eBay
Water Level Sensor+52mm Water Level Meter Tank Indicator With Red Backlight 0-190Ohm Water Level Gauge for Car Boat 9-32V Custom
Aliexpress UK
Automatically open when you gather (water tower) water pump (solenoid valve) steadily, and automatically stop pump (solenoid valve) when filled with water. Material: electronic parts. Size: about x 5 x 2cm (length x width x height).
eBay
52MM Water Level Gauge with Water Level Sensor 0-190 Ohm Sensor Water Level Meter Tank Indicator with Red Backlight
Aliexpress UK
The Level Waters(tm) MC-01B/SW EasyFill(tm) Sensing Unit provides dependable automatic water level sensing at a fraction of the cost of professional systems. Complete systems are available as the MLS-3401 and MLS-1002 EasyFill.
eBay
Atech Water Level Recorder Zigbee Water tank Level Sensor Rs485 Water Level Indicator Wifi
Aliexpress UK
The kit features a portable design, making it easy to carry around and use on the go. The gray color is sleek and modern, while the custom bundle allows you to choose the perfect combination of tools and accessories to suit your needs.
eBay
Water Level Sensor+52mm Water Level Meter Tank Indicator With Red Backlight 0-190 Ohm Water Level Gauge for Car Boat Motor 9-32V
Aliexpress UK
1 x Water Level Liquid Sensor. Corrosion Resistance: The level sensor will not be corroded by strong acid and alkali and other corrosive liquids, and will not be affected by scale or other sundries. Try to use a uniform material without air interlayer, no air bubbles, not absorbent, the dielectric constant does not easily change the material for the container.
eBay
Smart Water Level transmitt Water Tank Liquid Hydrostatic Level Sensor 0-500M 4-20mA 0-5/10V RS485 Output water level device
Aliexpress UK
1 PC Raindrop Sensor Module High Sensitivity Single PCB Board Rain Water Level Sensor Module Rising Water Level Detection Module Electronic Component. Raindrop sensor module (one-way board). 1 X Raindrop Sensor Module.
eBay
ME201W Intelligent Remote Tank Level Detection Smartphone Full Water Alarm System Controller For Water Level Sensor
Aliexpress UK
Sensitivity 5-100kΩ adjustable. Allowable distributed capacitance of electrode cable (maximum): 800 nF (sensitivity is 5 kΩ), 100 nF (sensitivity is 100 kΩ). - Ultra-small size, only 18mm width, 35mm rail installation.
eBay
Water Level Float Switch Water Level Controller Liquid Level Sensor 75MM/85MM/100MM/150MM/200MM/250MM/300MM/350MM/400MM/1M
Aliexpress UK
Ultra-small size, only 18mm width, 35mm rail installation. - Action delay 0.1s-10s adjustable. - Used to monitor thewater level of pools, ponds, and water towers. Installationway : 35mm card rail installation.
eBay
Water Level Float Switch Water Level Controller Liquid Level Sensor 52MM/75MM/85MM/100MM/150MM/200MM/250MM/300MM/350MM/400MM/1M
Aliexpress UK