








๐ก๏ธ Keep your aquatic ecosystem perfectly balancedโbecause your fish deserve precision.
The NEPTONION Aquarium Thermometer ST-3 features a high-precision LCD display with 0.1ยฐC accuracy, dual suction cups for stable mounting, and the flexibility to read temperatures in Celsius or Fahrenheit. Powered by two included LR44 batteries, this compact and durable device ensures reliable monitoring of water temperature for fish, reptiles, and terrariums, making it an essential tool for any dedicated aquatic enthusiast.







| ASIN | B07RBPV8Q4 |
| Additional Features | High Accuracy |
| Age Range (Description) | Adult |
| Age Range Description | Adult |
| Best Sellers Rank | #205,190 in Pet Supplies ( See Top 100 in Pet Supplies ) #164 in Aquarium Thermometers |
| Brand | NEPTONION |
| Brand Name | NEPTONION |
| Color | Black |
| Customer Reviews | 4.4 out of 5 stars 2,844 Reviews |
| Display Type | LCD |
| Included Components | Battery |
| Indoor Outdoor Usage | Indoor |
| Manufacturer | Windbells |
| Model | ST-3 |
| Model Name | ST-3 |
| Number of Batteries | 2 LR44 batteries required. (included) |
| Outer Material | Plastic |
| Part Number | Morza/va275 |
| Power Source | Battery Powered |
| Product Care Instructions | Wipe Clean |
| Resolution | 640 |
| Response Time | 500 milliseconds |
| Reusability | Reusable |
| Special Feature | High Accuracy |
| UPC | 778778958297 |
| Unit Count | 1 Count |
| Upper Temperature Range | 70 ยฐC |
G**E
Good product
This worked for many 6 years and I liked this product. I would buy this one again.
P**N
Good budget digital thermometer
Unit is good for what it is and appears to be accurate enough for my needs. I like that it comes with the batteries and suction cups for both the unit and the probe that attaches inside the aquarium. I normally just turn it on as needed when I want to view the aquarium's temperature and then shut if off to conserve batteries. Temp accuracy-wise, I'd say it is not spot on, but close enough when I compare it with other thermometers when checking the water temps. Time will tell how sturdy the button is with all this turning on and off, but in my case, I would only check the aquarium's temp once or every other day or so, as I also have a standard glass thermometer inside the aquarium. Overall a good buy and worth it.
B**A
Easy to use
Donโt mind my green tank! This was very easy to use and set up. You can do Celsius or Fahrenheit. You simply put the probe halfway down your tank in the water so you keep an accurate temperature status and put the other side on the outside of your tank and you can keep track of your temperature digitally. This is important because we are getting an axolotl and you have to keep the temperature cold so we wanted something that would be extremely accurate for his environment. I think it is extremely easy to set up and great for any beginner to be able to keep track of their tank temperature. I give it five stars because it is so easy to use and itโs extremely accurate from everything that I have been able to check.
M**N
Easy to read but I think it is off
I am pretty sure these thermometers are under by 2 degrees F but once I take that into consideration, they do the job well. Buyer beware if you have a cat that likes to chew wire: the wire is pretty thin and a cat can very easily chew through it. Always have backups handy!!!!
A**A
Works super well!
Everything works well! I really liked that this package came with 2 working batteries so I didn't have to go on a scavenger hunt to find these certain batteries. My fish loves to squeeze into every small space possible and so she's managed to separate the heater from the wall, but she's yet to accomplish that with these suction cups! The thermometer works super well, I only wish there was an LED option where it's easier to read. When the lights are on, it's legible, but at night when everyone is most wary of leaving their heaters on, I can't read it so I'm always using the flashlight on my phone to read the numbers. Only a slight inconvenience, but not large enough to hate on it. I've only had it for 4 days now, but it works super well and I love that it's small! Update: it's been over a month since I've bought it and I've yet to have any issue with it overheating. Occasionally, I may notice that it's a little warm (if it gets to be near 83 degrees, that's when I open a window or something, I don't use the AC or heater in my apartment). I have yet to unplug it other than when I clean the tank!
K**E
Perfect
Perfect little thermometer for my tank. Had it for a few months now and still going strong so battery life is good, it was easy to put in and move where I needed it to be. It works super well and is a nice size that it doesnโt take over the tank so it looks good. Definitely worth the money!
S**L
Great customer service
The first thermometer we bought didn't display the full temperature read out. We were going to buy a different thermometer when the company contacted us a day after our purchase. I let them know that the one we bought didn't provide the full display. Just like that, they sent us a new one that we received 3 days later. The new one the provided works great!
D**R
Temperature went inaccurate after about 3 months...
This was great when I first got it, but then, after a few weeks, things started going wrong. First of all, the sucker cup on the inside wouldn't stick. Then the suction cup on the outside kept coming unstuck. Then things got really bad - the temperature read 90+ degrees all the time! My heater is set to 77 degrees, and when I checked the temperature of the water with a mercury thermometer, it read exactly 77 degrees! I definitely would not buy this thermometer again.
Trustpilot
2 days ago
2 months ago