---
product_id: 29605877
title: "KETOTEK Digital Thermometer Temperature Meter Gauge Waterproof Sensor Probe Aquarium Car PC case Incubator Temp Meter 4 Pin Power Supply Celsius/Fahrenheit LCD Display"
brand: "ketotek"
price: "¥3192"
currency: JPY
in_stock: true
reviews_count: 12
category: "Ketotek"
url: https://www.desertcart.jp/products/29605877-ketotek-digital-thermometer-temperature-meter-gauge-waterproof-sensor-probe-aquarium
store_origin: JP
region: Japan
---

# Waterproof NTC sensor probe USB-powered, universal compatibility Wide temp range -58°F to 230°F KETOTEK Digital Thermometer Temperature Meter Gauge Waterproof Sensor Probe Aquarium Car PC case Incubator Temp Meter 4 Pin Power Supply Celsius/Fahrenheit LCD Display

**Brand:** ketotek
**Price:** ¥3192
**Availability:** ✅ In Stock

## Summary

> 🌟 Stay cool, stay precise — the USB thermometer that’s always on point!

## Quick Answers

- **What is this?** KETOTEK Digital Thermometer Temperature Meter Gauge Waterproof Sensor Probe Aquarium Car PC case Incubator Temp Meter 4 Pin Power Supply Celsius/Fahrenheit LCD Display by ketotek
- **How much does it cost?** ¥3192 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/29605877-ketotek-digital-thermometer-temperature-meter-gauge-waterproof-sensor-probe-aquarium)

## Best For

- ketotek enthusiasts

## Why This Product

- Trusted ketotek brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Plug & Play USB Power:** Seamlessly powers from any USB port—PC, power bank, or laptop for ultimate convenience.
- • **Multi-Environment Ready:** Waterproof 1m sensor probe ideal for aquariums, HVAC, vehicles, incubators, and more—adaptable to all your monitoring needs.
- • **Bright Backlit LCD Display:** Crystal-clear, glare-free screen with soft backlight ensures easy reading day or night without disturbing your pets.
- • **Precision Temperature Monitoring:** Accurate readings within ±0.5°C/°F, updating every 0.25 seconds to keep you instantly informed.
- • **Versatile Celsius/Fahrenheit Switch:** Effortlessly toggle between °C and °F with a simple jumper cap adjustment—customize your display.

## Overview

The KETOTEK E0032USBUS is a compact, USB-powered digital thermometer featuring a waterproof NTC 10K sensor probe with a 1-meter cable. It delivers ultra-fast, highly accurate temperature readings (-58°F to 230°F) with a bright backlit LCD display and easy °C/°F switching. Perfect for professionals managing aquariums, HVAC systems, vehicles, and more, it combines versatility with precision in a sleek, portable design.

## Description

Product description 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 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. 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.

Review: Great product - Very bright and easy to read it has instantaneously reading. One of my best purchases!
Review: It’s really great temp monitor. - Great temp monitor, love it. Installed it in my 2008 Explorer to monitor the A/C temperature.

## Features

- 【USB Power Supply】This digital thermometers 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 to 230°F /-50°C to 110°C, Input: DC 4~25V, Size: 4.7 x 2.8 x 1.7cm / 1.9" x 1.1" x 0.7", 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: 0.25s, accuracy: ±0.5°C/±0.5°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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07FRH3FNP |
| Additional Features | Waterproof |
| Age Range (Description) | Adult |
| Age Range Description | Adult |
| Best Sellers Rank | #29,516 in Pet Supplies ( See Top 100 in Pet Supplies ) #26 in Aquarium Thermometers |
| Brand | KETOTEK |
| Brand Name | KETOTEK |
| Color | Black |
| Connectivity Technology | Usb |
| Customer Reviews | 4.6 out of 5 stars 406 Reviews |
| Display Type | LCD |
| Immersion Depth | 1 Meters |
| Included Components | Digital Thermometer with 1m Sensor x 1, User Manual x 1 |
| Indoor Outdoor Usage | Indoor |
| Item Length | 1.89 Inches |
| Item Weight | 35 Grams |
| Manufacturer | KETOTEK |
| Model | E0032USBUS |
| Model Name | E0032USBUS |
| Outer Material | Plastic |
| Part Number | E0032usb |
| Power Source | DC |
| Product Care Instructions | Wipe Clean |
| Resolution | 0.5 degrees fahrenheit |
| Response Time | 500 Milliseconds |
| Reusability | Reusable |
| Special Feature | Waterproof |
| Specification Met | FCC |
| Style Name | USB Interface |
| Unit Count | 1.0 Count |
| Upper Temperature Range | 110 Degrees Celsius |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** KETOTEK
- **Color:** Black
- **Connectivity Technology:** Usb
- **Display Type:** LCD
- **Included Components:** 1 x Digital Thermometer, 1 x User Manual
- **Outer Material:** Stainless Steel
- **Product Care Instructions:** Wipe Clean
- **Special Feature:** Backlit
- **Specification Met:** CE, FCC

## Images

![KETOTEK Digital Thermometer Temperature Meter Gauge Waterproof Sensor Probe Aquarium Car PC case Incubator Temp Meter 4 Pin Power Supply Celsius/Fahrenheit LCD Display - Image 1](https://m.media-amazon.com/images/I/61MV17-wL2L.jpg)

## Available Options

This product comes in different **Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product
*by F***N on April 28, 2026*

Very bright and easy to read it has instantaneously reading. One of my best purchases!

### ⭐⭐⭐⭐⭐ It’s really great temp monitor.
*by T***Q on April 15, 2026*

Great temp monitor, love it. Installed it in my 2008 Explorer to monitor the A/C temperature.

### ⭐⭐⭐⭐⭐ Hot or Cold, Always in the Know
*by C***S on February 9, 2025*

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.

## Frequently Bought Together

- KETOTEK Digital Thermometer Temperature Meter Gauge Waterproof Sensor Probe Aquarium Car PC case Incubator Temp Meter 4 Pin Power Supply Celsius/Fahrenheit LCD Display
- IS Icstation Digital Thermometer, Car Auto Temperature Gauge Sensor, DC 4-28V Fahrenheit Dual Display, Monitor with 2 NTC Waterproof Probes for Aquarium Vehicle Fish Tank

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-06-18*