Digital Aquarium Thermometer by Leegoal - Perfect for Terrariums & Fish Tanks (Black)

Wayne J: Works like a charm. I have this mounted with the suction cups on my aquarium and it seems to be accurate. I keep it powered off to save the battery and turn it on occasionally to make certain all is well with the water temp. As stated the unit has a suction cup to attach the device to the outside of the aquarium and a clear suction cup to attach the probe inside the aquarium. I find it unobtrusive and fits the bill for what I intended. I recommend this product.

United States on Apr 19, 2017

Paul Roark: I've found that other tank thermometers are difficult to read and unreliable. This digital thermometer was a great solution to those issues! We use the suction cup mount to adhere the display next to our tank so we can always check on the temperature of the water. The probe that goes in the water doesn't sink on its own and the the probe's suction cup didn't work the best under water. An easy solution to this was to wrap it around another tube and now it stays in place under the water. I'd recommend using this thermometer over other types if you need a reliable measurement that's easy to see.

United States on Oct 16, 2016

E: Work well very accurate. I use a control unit and titanium tubes for heater. The controller keeps temps +-.5F

I was raising the temp and lowering the temp of my one tank to make my Cory breed, so there was a bit of temp fluctuation. This cheap thermometer was unbelievably accurate compared to a control unit with better tech/wire probes.

And then I bought 4 or 5 more and put them in all my tanks after making sure they were "calibrated" against the control unit. Only one was off by a fair amount, 1.7 degrees. Not a bad thing to say.

United States on Mar 30, 2015

Leonard Sackett: For the price they appear to be good. I bought 4 of them and 3 out of 4 worked. 4th one turns on but display only read gibberish. The 3 that work read within 1.5F of each other when probes were placed next to each other in same aquarium (80.4F, 81.0F, 81.9F). If they were thermometers you would not know the difference. The displays are very large and easy to read. I have requested a refund (exchange to China for one item less then $5 of value ????) but with or without refund I would buy them again for a 3 out of 4 yield Still less than half the price of buying one here in a pet store.
Update: Seller PROMPTLY supplied a replacement for the one defective unit. It is just as accurate as the first three and all four units read within 1.5F of each other (80.4F, 81.0F, 81.8, 81.9F). I think it is a very good product for the price. Changing my rating from *** to *****.

Got my second shipment of 3 and 2 out of the 3 work. Again those that work appear fairly accurate but again one was bad. Will see if seller will replace this one also. Again a good product for the price....when they work. Changing rating to 3 stars ***
Of the 6 new that work: 80.4F, 81.0F, 81.5F, 81.8F, 81.9F,...

United States on Feb 27, 2015

TerriG: These thermometers are quite good, but so have some drawbacks. First the good...they do record accurate temp to within about one degree which is fine for me.
The drawbacks:
1) The on/off button is only on the unit, apparently, for decoration. It does not shut off the unit. meannig that it is drawing from the battery constantly even when you do nor need to read the temp.
2) The suction cups that attach the unit to the outside of the tank do not hold. And the slot on the back of the unit is too large to hold the suction cup in place. It only needs a slight bump and the unit is hanging down from the tank by the cord.
3) The suction cup that holds the end placed in the tank turns yellow and I am assuming in very short order will become brittle and no longer hold.

Tip:
There is a thin semi transparent cling plastic on the digital readout. You need to remove this, then you can actually see the temp clearly. Would have been nice for the company to indicate this. And a good thing that I realized this, otherwise I would have subtracted another star.

United States on Feb 18, 2015