Taidacent Non Contact Liquid Level Sensor Contactless Water Tank Water Level Sensor for Tank Water Level Control with Low and High Level Output

Customer service from these folks is really great. They are very patient with people who have limited skills. lol like me. Product is great. Works fine. They are very good to answer every dumb question I had.

Es funcional, pero no tiene la capacidad de detectar lo que dice la descripción, es recomendable usar Velcro para reemplazarlos en caso de ser necesario.

Using this as a gas tank level sensor in my new lawn mower. Have it set up to come on when the tank is low enough for a full gas can fill. Easy to choose the output mode and adjust sensitivity. Applied with double stick tape.Only issue was the small ga wire difficult to connect. It came with a female 4 post connector for PC board but it needs a mate and pigtail. Ended up cutting the connector off and using the small wire ga car stereo two piece screw together connectors for the splicing.So far so good. Pretty difficult working environment as far as heat and vibration.

Worked perfectly out of the box. I tried several different containers and with the POT was able to adjust so it would have the correct detection. Very happy.

6 month update: Both of these have failed. I contacted the seller and will update this review if I get any good reason they might have died. 12V solar battery system, so spikes are unlikely. Permanent installation with no handling so static is unlikely. My spare from eBay works when swapped into the system, so I'm sure it's the sensors failing. Any suggestions welcome. Meanwhile they've gone up 30% in price.I bought some of these on eBay and 2 of 5 failed... so I tried these from Amazon even though they were triple the price. Both worked! But I'd suggest ordering spares just in case. The output current is at least an order of magnitude less than specified, so plan on using a MOSFET switch (I'm using item B07NWD8W26) or triggered relay to drive even a single LED. In use, these are VERY sensitive to distance. I wanted to sense the water level in a removable canister and found that even 1/8" separation would keep the sensor from working. You can pop off the cover and spin the trim pot for sensitivity (I think it's a capacitive bridge) but you have to trim it for the environment you're in. Metal, even behind it, can affect the setting you need.

So far this sensor has worked as expected. How to manually tune? Is there a procedure that describes the process and what to expected during tuning?

Easy to install and to adjust. Presently running.

First one I bought worked for about 1 week, then stopped turning on. Second one stopped sensing even after adjusting the sensitivity, Won't recommend.