ORIA Refrigerator Thermometer, Wireless Digital Freezer Thermometer with 2 Sensors, Indoor Outdoor Thermometer, Audible Alarm, Min and Max Display, LCD Display for Home, Restaurants

VERY practical! I use this for monitoring my RV refrigerator. Keeps me informed about the inside temperature, both the refrigerator section and freezer section, without opening the door! Be sure to position the sensors so there's no chance of water getting to the sensors! Works perfectly, shows the temperature of wherever the display unit is also! You can place the display unit inside your camper and monitor the inside temp or you can place the display unit on a outdoor table to display the outdoor temp!

Owned ours for 2 1/2 years, hasn’t missed a beat. I’ve replaced the batteries in each sensor and the main monitor 1 time. I’m writing this review now because I’m buying another one for kids.

It seems to work fine as long as you don't have two sets of units close to each other. I bought two sets: one for my normal refrigerator/freezer, and one for my chest freezer. They are about 7.5 feet apart. I put the host unit on the respective appliances where the transmitters were housed, but the host unit on the chest freezer was picking up the two transmitters in the refrigerator/freezer combo, and the host unit on the refrigerator/freezer combo was picking up the chest freezer and the freezer part of the refrigerator/freezer combo. I thought the host would pick up the signal for the closest transmitters, but it does not seem to be the case.If you only have one working, though, it seems to work fine!

I was hesitant to try these fridge thermometers because of the mixed reviews.I am very familiar with the operation of these type of devices that communicate/pair with each other so I decided to give them a try.I bought two. Setting them up was easy and on the bench the temps read within 1 deg of all 3 sensors, the remotes and the base unit. I let them sit for a day. They were near other temp devices of a different Brand name. All worked perfect.Installed one in my shop fridge and it has been operational for a week and I see no anomolies.The other one I installed in my Camper, one sensor in the Lithium battery compartment and the other exposed to protected from moisture outside air. Working perfect.The display is a bit dim in low light like others have said. That is ok with me. The other MFG's thermometers that I have are the same way, maybe not quite as dim.The Magnets hold the base unit quite wellI currently have 5 other MFG thermometers running around our home and property.I do not use the alarms on any of them.I do pay attention to the base units.Battery install sequence.Go to a place away from any other devices that communicate like these units. 50' away is enough.Check your battery voltages before installing them. 1.6+ volts! If not get another.I use good alkaline batteries like Duracell etc. Never have had an issue with the freezer section of my fridges and freezers.Batteries into the base unit first. Check that the display is on.Install batteries in one sensor. Within about 2 seconds the red led should flash.The Base unit should display the temp of that sensor.If it does not... Remove the batteries from both and wait about 30 seconds and repeat the sequence.If all is ok then do the other sensor.I will return and re-review if I have an issue with these units.I like the price!Jim.

UPDATE (12/6/2020): have barely had this unit 2 weeks (purchased 11/20/20) and now one of the sensors constantly blinks 3 dashes every few seconds, and then a temp readout. Batteries are new. Will attempt to send unit back as it is clearly defective, but I threw away the box. We'll see what happens...Picked this up to monitor temps in a basement chest freezer. Main unit is kept one floor up in a timber-built home (there is an unfinished basement ceiling separating the two floors). Range seems solid - transmitters are able to report to the main unit through the steel freezer, one floor up. Total distance is less than 30 feet of separation. Accuracy seems good, though I have not tested these against a professionally calibrated control thermometer. Displays are somewhat easy to read - there is no backlight option. I placed both wireless thermometers in my freezer to see how close they'd read from one another - they seem to be < +/- 1 degree from one another, which is a very good thing for something so affordable. Using these did allow me to realize my chest freezer was NOT safely keeping food at 0F or below (recommended by the USDA), so I cranked up my freezer control to just below the highest setting to achieve a consistent -3F within 24 hours. More disappointed in my chest freezer (which I only bought 6 months ago) than these wireless thermometers! Overall, these are a very good deal for the price being asked. Are they super basic? Yes. Is the build quality top notch? No. But it's not like these are being thrown around. If I had any complaint, it's that the main display is smaller than I expected. Still, I'll keep them. Magnets on rear of main unit are very handy (I keep mine on the side of the fridge one floor up). Recommended.

Just KIDDING about the Toaster thing.The (New Version) ORIA `frige and freezer digi Thermometer is spot on compared to the restaurant grade analog thermos in use but far, FAR quicker in identifying cool and cold zones in the fridge (without opening the door!) as foodz move out and in. Nice crisp and LARGE display is PERFECT for eyes in their 78th lap of the Sun -like mine.