---
product_id: 350585111
title: "weideer Digital Thermometer Dual LED Display Fahrenheit to Centigrade Adjustable DC 4-28V -67~+248℉/-55～+120℃ High Accuracy Temperature Gauge Sensor with 2 Waterproof NTC Probes K-017"
brand: "weideer"
price: "R$266"
currency: BRL
in_stock: true
reviews_count: 11
category: "Weideer"
url: https://www.desertcart.com.br/products/350585111-weideer-digital-thermometer-dual-led-display-fahrenheit-to-centigrade-adjustable
store_origin: BR
region: Brazil
---

# Wide 4-28V DC power range Dual probe temp sensing Red & blue LED clarity weideer Digital Thermometer Dual LED Display Fahrenheit to Centigrade Adjustable DC 4-28V -67~+248℉/-55～+120℃ High Accuracy Temperature Gauge Sensor with 2 Waterproof NTC Probes K-017

**Brand:** weideer
**Price:** R$266
**Availability:** ✅ In Stock

## Summary

> 🌡️ Stay ahead with precision temps in style — don’t let your data lag behind!

## Quick Answers

- **What is this?** weideer Digital Thermometer Dual LED Display Fahrenheit to Centigrade Adjustable DC 4-28V -67~+248℉/-55～+120℃ High Accuracy Temperature Gauge Sensor with 2 Waterproof NTC Probes K-017 by weideer
- **How much does it cost?** R$266 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/350585111-weideer-digital-thermometer-dual-led-display-fahrenheit-to-centigrade-adjustable)

## Best For

- weideer enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Durable Design:** Sleek 1.1"x0.7"x1.8" form factor with waterproof sensors built to withstand demanding environments.
- • **Robust Voltage Compatibility:** Operates seamlessly across a broad 4-28V DC range, perfect for diverse industrial setups.
- • **Vivid Dual-Color LED Display:** Clear red and blue digits ensure instant, error-free readings even in low light.
- • **Precision Dual-Location Monitoring:** Simultaneously track temps with two waterproof NTC probes for unmatched accuracy.
- • **Flexible Fahrenheit/Celsius Switching:** Effortlessly toggle between °F and °C to suit your professional or personal needs.

## Overview

The weideer K-017 Digital Thermometer features dual waterproof NTC probes and a dual LED display (red & blue) for simultaneous temperature readings in Fahrenheit or Celsius. Operating on a versatile 4-28V DC power supply, it covers a wide range from -67 to +248°F (-55 to +120°C) with high accuracy and rapid 0.5-second response time. Compact and rugged, it’s ideal for professional HVAC, lab, or industrial monitoring where precise, multi-point temperature data is critical.

## Description

weideer Digital Thermometer Dual LED Display Fahrenheit to Centigrade Adjustable DC 4-28V -67~+248℉/-55～+120℃ High Accuracy Temperature Gauge Sensor with 2 Waterproof NTC Probes K-017: desertcart.com: Industrial & Scientific

Review: Great for custom applications- each channel can be calibrated! - They're not forthcoming with instructions on how to adjust/calibrated each channel but it involves holding down the micro pushbutton on the PCB until you reach the menu. To reach the menu, hold down the button for 2~3 seconds... •Short clicks scroll thru the parameter selection, press and hold to adjust the parameter •When the parameter is being adjusted by holding the button down, it will increment. Release the button for a second and hold it down again to decrement. It's a little confusing but it really does work! The method described is something you really have to do yourself - until you 'get it' To make life easier, I desoldered the surface mount pushbutton and added a normally open pushbutton on a 8" length of wire...I put the works (batteries, switch & display in an appropriate enclosure) I fabricated a Subcooling & Superheat measurement instrument from this device...the RED colored display measures/displays the temperature of the high pressure/liquid line. The BLUE colored display measures/displays the temperature of the low pressure/suction line. By use of a custom made circular split bushing which replaces the jaws of a plastic spring clamp (to hold the thermistors on each of the aforementioned lines) I'm able to calculate subcooling & superheat parameters whilst adding refrigerant to an HVAC system. Powered by 2x 18650 batteries - this thing works great. It's accurate on a 2 point calibration - if you take the time to do it. I think it's an excellent gauge. Great price point - love the 2 different colors on the display. This is the way to get a good thermometer gauge for a great price. I'm going to purchase several more since these work so well. Two thumbs up!
Review: This thing is smol - Very compact display which is what I wanted. Haven't calibrated to my Fluke thermocouple yet but temps seem to stay consistent. The blue display does not light well at lower end of voltage range but comes to life at 12/24vdc. Will likely need to calibrate after install as I will add ~20' of wire to the thermistors. Will also be in thermowells as your sensor should never contact the process material.

## Features

- Multifunctional thermometer that can be used as a Fahrenheit thermometer. It can also be used as a Celsius thermometer. Multi-function switching can be achieved through button adjustment. Equipped with 2 waterproof NTC probes, the thermometer can measure the temperature in 2 different locations at the same time. Clear red and blue display for clear temperature reading.
- Voltage:DC4-28V;Temperature Range: -67 ~ +248℉;The green wire is the positive pole of the power supply, and the black wire is the negative pole of the power supply.
- Device size:28.8x19.3x74mm/1.1"x07"x1.8"Probes Wire length：100cm/3.28ft；NTC Probes size:4.9mmx25mm/0.2"x0.98"；Power line:15mm/0.59"
- Measure water temperature inside and outside the car / inside and outside the air-conditioned room / inside and outside the refrigerator / fish pond
- Package includes:1Pcs Dual Display Digital Thermometer;2Pcs NTC temperature sensor;1Pcs 15cm 2P Cable

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0928QY786 |
| Age Range (Description) | Adult |
| Best Sellers Rank | #45,854 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #16 in Lab Digital Thermometers |
| Brand | weideer |
| Color | Black,Blue,Green |
| Connectivity Technology | Usb |
| Date First Available | April 12, 2021 |
| Display Type | Digital |
| Immersion Depth | 15 Centimeters |
| Included Components | 1 Dual Display Digital Thermometer, 2 NTC temperature sensors, 1 15cm 2P Cable |
| Indoor/Outdoor Usage | Indoor |
| Item Weight | 1.23 ounces |
| Item model number | K-017 |
| Manufacturer | weideer |
| Model Name | K-017 |
| Outer Material | Plastic |
| Package Dimensions | 6.06 x 1.46 x 1.14 inches |
| Power Source | Dc Power Supply |
| Product Care Instructions | Wipe Clean |
| Response Time | 0.5 seconds |
| Reusability | Reusable |
| Special Feature | Dual Probe |
| Specification Met | CE |
| Style | Digital |
| Unit Count | 2.0 Count |
| Upper Temperature Rating | 248 Degrees Fahrenheit |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** weideer
- **Color:** Black,Blue,Green
- **Connectivity Technology:** Usb
- **Display Type:** Digital
- **Included Components:** 1 Dual Display Digital Thermometer, 2 NTC temperature sensors, 1 15cm 2P Cable
- **Outer Material:** Plastic
- **Product Care Instructions:** Wipe Clean
- **Special Feature:** Dual Probe
- **Specification Met:** CE

## Images

![weideer Digital Thermometer Dual LED Display Fahrenheit to Centigrade Adjustable DC 4-28V -67~+248℉/-55～+120℃ High Accuracy Temperature Gauge Sensor with 2 Waterproof NTC Probes K-017 - Image 1](https://m.media-amazon.com/images/I/6195ApqTBEL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great for custom applications- each channel can be calibrated!
*by P***Z on August 6, 2024*

They're not forthcoming with instructions on how to adjust/calibrated each channel but it involves holding down the micro pushbutton on the PCB until you reach the menu. To reach the menu, hold down the button for 2~3 seconds... •Short clicks scroll thru the parameter selection, press and hold to adjust the parameter •When the parameter is being adjusted by holding the button down, it will increment. Release the button for a second and hold it down again to decrement. It's a little confusing but it really does work! The method described is something you really have to do yourself - until you 'get it' To make life easier, I desoldered the surface mount pushbutton and added a normally open pushbutton on a 8" length of wire...I put the works (batteries, switch & display in an appropriate enclosure) I fabricated a Subcooling & Superheat measurement instrument from this device...the RED colored display measures/displays the temperature of the high pressure/liquid line. The BLUE colored display measures/displays the temperature of the low pressure/suction line. By use of a custom made circular split bushing which replaces the jaws of a plastic spring clamp (to hold the thermistors on each of the aforementioned lines) I'm able to calculate subcooling & superheat parameters whilst adding refrigerant to an HVAC system. Powered by 2x 18650 batteries - this thing works great. It's accurate on a 2 point calibration - if you take the time to do it. I think it's an excellent gauge. Great price point - love the 2 different colors on the display. This is the way to get a good thermometer gauge for a great price. I'm going to purchase several more since these work so well. Two thumbs up!

### ⭐⭐⭐⭐ This thing is smol
*by M***H on June 12, 2025*

Very compact display which is what I wanted. Haven't calibrated to my Fluke thermocouple yet but temps seem to stay consistent. The blue display does not light well at lower end of voltage range but comes to life at 12/24vdc. Will likely need to calibrate after install as I will add ~20' of wire to the thermistors. Will also be in thermowells as your sensor should never contact the process material.

### ⭐⭐⭐⭐⭐ AC coil monitor
*by R***. on December 6, 2025*

Works great to monitor the temperature difference across my AC coil. Very satisfied with its operation.

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-02-16*