Watchman Sonic Advanced Oil Level Monitor

Easy enough to fit provided one has the correct size hole cutter!Much easier to use than the old cloudy sight tube and nice to be able to stay in the warm and dry!When the tank was filled close to the top the unit stopped working and I mistook the error message for low battery warning so fitted a new battery…Contacted the supplier who responded promptly but happily the unit started working correctly once the level dropped slightly.

This is great. Works well and App is brilliant. Customer service was great too as I had a couple of questions. Would definitely recommend

Purchased this as a replacement. Took along time, over night to pair and they are 10m from each other.

have seen it in many places and thought it was my turn to get oneand it worked to start with for two days, then failedcustomers service on this product, although very nice, are uselessnow, in the second week after a phone call and email except to say they have a high volume of calls, no real response

Easy to fit as i was replacing the old one which had given up on us after about 15 years. Good value for money i’d say. Set up in 5 mins job done. Excellent piece of kit.

Good product

Bought for my heating oil tank. My old one was leaking like a sieve.Although they give instructions as to how you change the battery, then go on to mention elsewhere in the instructions that doing so breaks the weather seal and invalidates the warrantyIn short, brilliant at what it does, but replace it when the Li battery dies

This oil monitor really does the job. It is very accurate. Once or twice it lost connection but it was good thereafter. It hasn't lost connection since! It took a bit of careful reading of the instructions to understand that the white round part of the oil monitor that goes onto the tank must be linked by touching the it against the console. Also you must measure or know the height of the monitor to set it correctly. Lastly, the hole on my tank did not align perfectly with the monitor unit so I had to drill a hole through it and jimmy it a lil bit but it was fine in the end, thankfully!