Smart Oil Gauge Duo - Advanced Dual Sensor Wi-Fi Heating Oil Tank Gauge - Compatible with Alexa - Designed for 138/275/330/500 Gallon Tanks (Vertical/Horizontal)

First shipment item was used and wasn’t the duo. Returned with no problem. Received a new duo as replacement. Easy install. Gives me an accurate reading. Happy to have a gauge not dependent on a cork and a gauge that gives you a not very accurate estimate. If my car used a cork gauge like my oil tank I would have run out of gas a few times. Quality is good, value for money will depend on how it works over time.

First - USPS is horrible, left the package out in the snow at the end of my long driveway, thankfully Amazon notified me of the delivery. This device is awesome. Not only does it read the tank it gives approximates of daily, weekly and monthly use it tells you the expected days left. There is a usage graph as well. I did have an issue with setup, it simply would not connect to my Asus router. I called tech support and they were super helpful as well as being very patient. In the end it needed to be connected via a WiFi extender that I had laying around which is what they told me to try! It had nothing to do with bad WiFI coverage it just would not connect and report to my router. With these outrageous oil prices it is very helpful to get accurate readings whenever i want, highly recommend!

bought this DUO smart gauge sept 24 , (2-330 tanks in basement) it connected to wifi well and kept the connection ,it worked well all winter but when oil level got down to 4.5 inches it showed oscillations in usage.i stuck the tank and it showed 4.5 inches which according to a table is 20 gal/tank so i had 40 gallons.the smart gauge said i have 126.8 gallonsi called for oil and filled to the whistle it took 560 gallons, so 560 + 40 =600so smart gauge is off by 86 gallonsi called smart gauge support, hunter said there might be sludge in the bottom of the tank that throws off the reading.i could not get a different unit to try. i was willing to help them figure out why the unit was reading incorrectly but they don't care since they already got your money.so if your ok with being off by 86 gallons, buy one.

I had a gauge which was never changed for 30yrs and the floatation device had heavy oil residue on it and the lifting device was damage so that prevented it from giving me accurate oil tank readings. I could have bought another one for like $40-$50 but I figured instead of having to change it again in a couple of years I can just use this smart reader. I removed the old gauge and installed this very easily just screw it in. Followed the instructions from the manual to connect it to my wifi and they also have a customer service number on there. The app is clear and functional. After a couple of minutes the sensor actually could tell how many gallons were in the tank. It also gives you how many gallons you go through a day and let’s you send alerts via email and text. I just got my tank filled minutes ago then installed the sensor. I have a 275 gallon vertical tank, they even have tank setups within the app so you can see which kind of tank you have. When I looked the tank wasn’t filled to the top from being previously empty. So I worried this smart sensor wouldn’t get an accurate reading. Checked my bill they filled 233 gallons. At first sensor just said tank was full. Then after about an hour I checked the app the sensor actually figured out the right amount of gallons in the tank at 233.75 gallons. I put in the app that I had a 275 gallon tank so this was impressive. It doesn’t ask if you just had a fill or whatever so it actually read how full my tank was. I installed the Alexa skill so now I just tell Alexa to ask Smart Guage if my oil needs to be filled. Alexa replies with the amount saying no that my tank is full. It’ll be nice to ask Alexa when to fill my tank. Or how full my tank is if it’s at 1/4 full which is also an Alexa feature. As far as battery life goes they clearly state that the more you have the sensor check in and upload data the more you can kill the battery so if you have it uploading data to the app/wifi 20 times a day yeah you can lose the charge. I don’t mind replacing the battery I just have it set to a reasonable amount of check ins. I have smart sensors for lights all over my home and smart locks so it’s not too bad changing out batteries once a year. It lets you know when batteries are low. But yeah. This device is great for what it does. Now I can monitor usage and save $$ on oil deliveries since I’m not on auto-fill and I’m not contracted at a certain price which is great. I also have the nest learning thermostats so we live comfortably heat wise and I save hundreds of dollars a year. Win win

First product I got was packaged very well, installing it on the tank was simple. However, setup with the app was a little confusing. This lasted about a week, then stopped working, when I went to reset it, I noticed that the chip was away from the board. The replacement arrived quickly and was much easier to get setup. Not sure why. The quality seems good. App seems good, but now the negative....1st, I. The app there is no way to delete the old sensors. 2nd, the other day I had my furnace cleaned and I went to check the statistics for day usage, and there is now no data. Glitch? Not sure, but when it worked it was absolutely amazing and seems pretty accurate. I'm o ly giving it a 4star duty to me having issues with the first one and now the app glitch.Update 1 - 28mar25 after using the device for awhile it has stabilized and continues to provide a more accurate reading. App is still just OK. Doesn't work with any android version prior to 11 so keep that in mind if your setting up a dedicated tablet for home automation.*** note *** make sure that you purchase an adaptor from the company as it will throw off your readings if you don't. I've attached photos of the app and how easy it is to view. Again, I can't give this a 5 star rating because of the issue with the app on daily use daily level.

I must be honest, I bought this Wi-Fi gauge, not expecting much from it. To my surprise, it’s past every single expectations that I had. Even though I’m a senior, I love technology and this Wi-Fi oil gauge blew me away. It was a cinch to install and set up. When you first install it, it may read a full tank of fuel oil, even though you may not have that much in the tank. That’s exactly what happened to me. I left it alone for about four hours and then I went back to the app on my phone and all of a sudden it was reading the correct amount of oil That I had.I’m guessing it needs a few hours to calibrate the quantity of oil the first time.