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Digital Thermometer Temperature Gauge USB Power Supply with Sensor Probe for Aquarium Vehicle PC Case Incubators Brooders Climb Pet Fahrenheit & Celsius LCD Display

Free shipping on orders over $29.99

$9.98

$ 4 .99 $4.99

In Stock

1.Style:4 Pin Interface


About this item

  • 【USB Power Supply】This digital thermometers 12v is use usb connector as power supply. Easily to connect to PC, laptop computer, power bank, usb socket or any other usb port.
  • 【Accurate and Responsive】Temperature range: -58°F~230°F /-50°C~110°C, Input: DC 4~25V, Size: 4.8x2.7x1.7 cm, 50 Grams, Sensor cable: 1 meter, Temperature display unit: °C/°F switchable.
  • 【NTC 10K sensor waterproof】This digital PC thermometer is responsive and accurate to measure the temperature. Measurement interval: 0.05s, accuracy: ±1°F.
  • 【Wide Applications】This thermometer gauge with probe is widely used in managing aquarium, pets, vehicle, air conditioning, refrigerator, freezer, water heater, greenhouses, Incubators, computer chassis temperature detection, DIY, etc.
  • 【Color Liquid Crystal Display】This aquarium thermomter digital is equipped with bright backlight, you can clearly check the temperature even in the dark.



Product Description

digital usb thermometer
unit convert

Features:

* Unit convertable

Easy coversion between °C and °F. Please through Pull out/ Install the short circuiter, you can change the temperature display unit between ℃ and ℉.

* Backlight display

Crystal liquid display is designed in backlight, easy to read even in direct sunlight. While won't too light to bother reptile and fish night activity.

* NTC Sensor Probe

1 meter cable and NTC sensor for any versatile DIY.

Specifications:

  • Temperature Range: -58°F~230°F / -50°C~110°C
  • Accuracy: ±0.5°F
  • Sensor type: NTC (10K/3435 Waterproof)
  • Working Voltage: DC 4~25V
  • Working Current: Max. 20mA
  • Operation Temperature: -58°F~180°F
  • Size: 1.9" x 1.1 " x 0.7 "

Package content:

  • Digital Thermometer with 1m Sensor x 1
  • User Manual x 1
crystal usb thermometer

Tips:

  • Use a tweezer to unplug the tiny jumper cap on back of unit to switch from Celsius to Fahrenheit.
  • Recommend mounting size: 1.8" x 1.0 " x 0.6 "
  • The probe is waterproof but the main part is not waterproof.
  • Please do not put in any corrosive liquid.
Digital Thermometer Aquarium RVS

Multiple Applications

Ideal for vehicle , aquariums, Incubators, pet habitats, HVAC, computer, CPU temp, Indoor and outdoor temperature, equipment, pools, automobiles, RVs and boats temperature measurement.


George
2025-08-23 17:03:46
This KEOTEK Digital thermometer was soft and on the eyes to look at day and night.. An excellent item for use on a car dashboard to monitor engine temperature. If the sensor lead is too short, ordinary speaker wire can be used to lengthen it. The sensor lead is just regular, very thin, about 22 gauge wire. I would suggest cutting the sensor lead a few inches outside of the sensor housing to lengthen the lead. The sensor is soldered on two tiny tabs on the PC board and the new lead can be soldered ther in place of the original. I did that but If a person is not skilled enough to do that then just add on to the existing wire externally. Saves time prying open the device housing and tearing two small wires from the backlite main LED. Accuracy is excellent. If a person needs beater accuracy then he'll have to pay more for a lab grade temp measuring devices. All in all the KEOTEK A great little device and sold and a lot of value for an excellent temp gauge sold at low price .
American Goth
2025-08-10 09:30:25
I'm using it over the air intake of my main PC, to monitor room temperature. It's a nice little add-on so that I know that I'm not really freezing in the winter, it just feels that way.Getting the clip off so as to read in degF was a pain, though. Not much room to reach in, and that little sucker was in there TIGHT!
cforakis
2025-08-03 15:44:03
I bought the KETOTEK Digital Thermometer Temperature Gauge to monitor the inside temperature of a tower gaming computer after I installed aquarium filter material at all the tower vent locations. Filter link:(https://www.amazon.com/dp/B01KYS02EG?ref=ppx_yo2ov_dt_b_fed_asin_title&th=1)The filters are to prevent dog hair and dust from building-up on the cooling fan blades and other interior components.After covering all the openings of the tower with the filter material, I wanted to monitor the inside temperature of the computer tower since the computer remains on 95% of the time. The filters work great with little to no dust build-up, and the interior tower temperature remains constant, reading between 63 and 71 degrees.The temperature gauge is plugged into a USB port and runs 24/7. Using a piece of rigid foam, the temperature probe is anchored upright in the middle interior space of the tower.Some temperature gauges go dark after a short period of time and require being touched to illuminate the face to read the gauge. The face of the KETOTEK Digital Thermometer is easy to read and remains illuminated 24/7, even when the computer is turned off.I have the gauge set to read Fahrenheit, but the gauge arrives set to read Celsius. At the back of the gauge, there is a small pin that, once removed with tweezers, switches from reading Celsius to reading Fahrenheit.
Dave Paton
2025-07-25 18:37:06
Edit: April 2020:Still chugging along. Still accurate. Still very happy with them.Original review:What a nice little thermometer. I'd give it 5 stars but my first one broke within an hour, and mounting is a pain. The replacement shipped out next day, which is very nice. Checked against a calibration source, it was within 0.2F from 60 to 90F, perfect for my aquarium.I'd happily buy a bunch more at this price. Even though they are a royal pain to mount. I really wish the manufacturer had used the hole in the back panel for the USB cord instead of the side exit, and done something else with the latch locks on the sides. It's obviously supposed to be a panel mount unit, but the side latches and USB cable exit make that impossible. For now I'm mounting it with Velcro. Imperfect, but functional.
Snoo
2025-06-22 12:04:03
The plastic tab "spring clips" on the housing of the indicator aren't really spring clips and should not be figured in with your installation plans. Very professional looking display, excellent response time, and measures to the 10th of a degree F or C. I sort of wish the backlighting was dimmer to make the "black" background more of a black color. Cables definitely long enough for most installations!
Ashley
2025-06-13 12:51:01
Great love plug in not batteries no direction on how to get fahrenheit but ya open home tab on back needle nose plies pull black thingy out ... It's accurate if you place it correctly easy to read from a distance good led love it
NanakJet
2025-06-03 10:41:13
This is a simple 2 wire connection and the display looks great. I installed it inside a PC mostley just for the looks & just used double stick tape to secure it. Great product for a great price.
vdawg
2025-05-05 13:58:44
I wanted to be able to see the temperature in the output side of our HVAC air handler. I connected this to an AC 24v->DC 12v converter and then powered the converter from the 24v "fan" line of the HVAC blower. Since the device uses less than half a watt, it doesn't create any additional load issues for the HVAC transformer when it's running. This turns on the temperature display only when the HVAC is running in either heat or cool mode , and the sensor appears to accurately pick up the air temperature in the output side plenum. I simply poked a small hole in the side of the foam-board plenum above the air handler and inserted the probe, then caulked the opening. When I compared this sensor to another temperature gauge, it was within 1 degree F, so I consider it to be working properly. I've actually ordered a second one to insert in the supply side plenum so I can easily measure the temperature delta for the system at any time, whether it's in heat mode or cool mode.
LOGAN
2025-03-23 18:03:57
ES BUENPRODUCTO Y SE PUEDE MPOTRAR EN CUALQUIER MUEBLE, LO UNICO ES EL TAMAÑO DE LOS CABLES, DEBERIAN SER UN POCO MAS LARGOS PARA MEJORAR SU INSTALACION, OTRO PUNTO ES LA CALIBRACION, A MI PARECER NO ESTA CALIBRADO CORRECTAMENTE, LO COMPAE CON TEMOMETRO INFRAROJO Y ME DAN CASI 2 GRADOS DE DIFERENCIA, EL IFRAROJO MARCA 28 GRADOS MIENTRAS QUE ESTE DIGITAL ME MMARCA 29.8 GRADOS
Cliente
2025-03-21 17:11:27
Imballo ok,display pensavo più evidente,ma si legge facendo bene ATTENZIONE se si cerca il particolareNel complesso ok
alain dubois
2025-02-23 13:14:41
perfect
stan
2024-12-17 11:58:46
Tiny and cheap material. On top of that, it is very inaccurate.
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