HiLetgo5pcs Digital LCD Thermometer Temperature Digital LCD Fridge Thermometer Water Temperature with Probe Fahrenheit

Solid value for the price.I use these to monitor temps inside my entertainment center. With a home theater setup that puts out a good amount of heat, I wanted something simple to help me keep an eye on airflow and hotspots. These thermometers do exactly what I need them to.They’re accurate enough for this kind of use. I compared all five and the readings were close—within a degree or so. The probes are small and easy to tuck behind gear or route through vents. The displays are clear and easy to read at a glance.Only downside is battery life—one unit came with a weak battery, but replacements are cheap and easy to install.Bottom line: if you’re looking for basic, reliable temp monitoring without spending a lot, this is a solid pick. I’d buy them again.

Purchased a 5 pack. Three of the 5 are right on at room temperature. The other 2 within 1 degree F. For the price this is excellent.I also have many of these without the wired probe. The probe style is definitely more accurate. However, I would pass on the models that include humidity which are not accurate at all, not even for moisture estimates.If you want consistent accuracy for humidity and temperature buy a ThermoPro TP-50 (on Amazon). I use those to check/calibrate all my thermometers.

These digital thermometers provide excellent 5-star value for the money. However, I deducted one star because the Amazon listing OVERSTATED their accuracy by a FACTOR of 20!!Performance is misrepresented in the “Product Description” by stating an accuracy of “+-0.1”, whereas the box (first photo) clearly states a more reasonable +-2 F accuracy, which the units do indeed achieve. If you bought these believing the “Product Description”, you would be sorely disappointed. (Temperature resolution is also misstated. The box correctly lists the resolution as 0.2F, whereas the “Product Description says “0.1”)I bought two lots (10 thermometers) for household A/C and temperature monitoring. A quick initial test showed that all did indeed display degrees Fahrenheit, all LED display segments appeared to work, and all displays looked crisp with high contrast in normal room light. The displays are not back-lit, so won’t be visible in the dark without some illumination.For quick initial accuracy testing, I strapped groups of 5 sensors together, and blew a boxer fan at them (second photo), allowing time for them to settle. My reference temperature was provided by a 100-ohm platinum RTD, whose accuracy has been previously verified. (It’s inside the small copper tube in the photo.) The RTD temperature was read using a four-wire hookup to a precision meter (photo 3).Results? All units were within +-0.9 F – well within the accuracy stated on the box. One was right on, five read low, and four read high. If time permits, I’ll provide a more comprehensive evaluation.Bottom line: at two bucks apiece, these digital thermometers provide exceptional value.

I am using it as a pool thermometer. I plan on waterproofing the display, but for now I just have it wrapped in a Ziploc. The probe has been in the pool all week and has had no issues. Temp is accurate. Awesome deal. Might buy more just to tinker

There is no on or off button, you will receive them on and reading the temperature, and they will stay on until the battery goes out. I can't say how long that is, but get ready to buy LR44 batteries.

Observed agreement of my five thermometers right out of the box (see photo) is +/- 0.6 deg. F, which was calculated by taking the highest reading of the five (75.3 F) minus the lowest reading of the five (74.1 F) divided by 2 equals an agreement accuracy of +/+ 0.6 deg. F. This is well within the accuracy printed on box of +/- 2.0° F (see second photo) and the accuracy in the Amazon listing of +/- 1 deg.(Note the listing does not bother to specify if that is 1 deg. F or 1 deg. °C, smh!). So whether the midpoint temperature of 74.7 F is "actually" accurate or not, I don't know, but at least all five are agreeing with each other at +/- 0.6 degrees F, and I think that's pretty good!

Got these to monitor the temp in our chicken brooder when we had baby chickens. It worked and we were able to maintain correct temp in the brooder so much so we didn't loose any chicks, just had 13 but happy with this.

Works with a degree or two. Works for what I need for a freezer and refrigerator. Wish letters were white on black or black on white. Yes they did come shipped with batteries installed. Out of package they were all within 1 degree