---
product_id: 21650419
title: "Thomas - 4039 Traceable Waterproof Thermometer, with Probe/Cable, -50 to 300 degree C"
brand: "thomas"
price: "€ 214.93"
currency: EUR
in_stock: true
reviews_count: 9
url: https://www.desertcart.es/products/21650419-thomas-4039-traceable-waterproof-thermometer-with-probe-cable-50-to
store_origin: ES
region: Spain
---

# Waterproof NIST Certified Wide Temp Range Thomas - 4039 Traceable Waterproof Thermometer, with Probe/Cable, -50 to 300 degree C

**Brand:** thomas
**Price:** € 214.93
**Availability:** ✅ In Stock

## Summary

> 🌟 Elevate Your Monitoring Game!

## Quick Answers

- **What is this?** Thomas - 4039 Traceable Waterproof Thermometer, with Probe/Cable, -50 to 300 degree C by thomas
- **How much does it cost?** € 214.93 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/21650419-thomas-4039-traceable-waterproof-thermometer-with-probe-cable-50-to)

## Best For

- thomas enthusiasts

## Why This Product

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

## Key Features

- • **Certified Accuracy:** Traceable to NIST, ensuring you never compromise on precision.
- • **Data You Can Trust:** Records minimum and maximum readings for comprehensive monitoring.
- • **Versatile Monitoring:** Perfect for air, gas, liquid, and semi-solids—your all-in-one solution.
- • **Precision Meets Durability:** Engineered with a rugged ABS plastic casing for shockproof reliability.
- • **Temperature Range Champion:** Accurate readings from -50 to 300°C, catering to all your temperature needs.

## Overview

The Thomas - 4039 Traceable Waterproof Thermometer is a high-performance tool designed for professionals who demand accuracy and reliability. With a temperature range of -50 to 300°C, this thermometer is perfect for various applications, including air, gas, liquid, and semi-solids. Its waterproof and shockproof design, combined with NIST traceability, ensures that you can trust your readings in any environment.

## Description

Thomas - 4039 Traceable Waterproof Thermometer, with Probe/Cable, -50 to 300 degree C

## Features

- Waterproof and shockproof with a tough ABS plastic casing
- 10' cable with a stainless-steel probe
- Can be used to monitor air/gas, liquid, and semi-solids
- Records minimum/maximum readings
- Traceable to NIST for accuracy

## Images

![Thomas - 4039 Traceable Waterproof Thermometer, with Probe/Cable, -50 to 300 degree C - Image 1](https://m.media-amazon.com/images/I/41HrXiAtR3L.jpg)

## Available Options

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

## Questions & Answers

**Q: Hello I just ordered these thermometers, please insure that the NIST information is included. Thank you**
A: Yes, but this is a TERRIBLE product.  Sent back the first when it didn't work (yes--i changed the battery).  The second one worked for about a month and then it went kaput.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    thermometer
  

*by S***E on Reviewed in the United States on February 1, 2022*

great

### ⭐⭐⭐ 3.0 out of 5 stars







  
  
    Stopped working after 3 months and only 1 use
  

*by R***T on Reviewed in the United States on September 21, 2013*

I bought this item to monitor temperatures for Home-brewing beer. I used it once and it worked like a champion, however, pulled it out the second time, and it was reading 154 degrees F for room temperature. I replaced the battery like the manual suggests with no change. Unfortunately its been 3 months since I ordered the item so I can no longer return it. I have emailed the Thomas company to see what can be done now. If I get good feedback/repair/replacement I'll update this review but for now, as it stands it's not a very reliable device for the price tag.UPDATE:  They did replace the thermometer for no cost. It took a couple weeks to get it taken care of, some E-mails, and shipping costs. We shall see how this new one holds up.

### ⭐⭐ 2.0 out of 5 stars







  
  
    Buyer Beware!
  

*by O***O on Reviewed in the United States on November 27, 2013*

This item arrives with an official looking calibration sheet, etc., etc.  I was fooled twice, but won't be again.  I use thermometers to monitor the water temperature when I "hot-dip" my oyster stacks to kill the bio-fouling, but not the oysters.  The stacks, with oysters in them, get dipped in a huge vat (112 cubic feet) of water heated to 140-degrees (F) and held there for 40 seconds exactly.  A little too hot or too cold will either kill the oysters or won't kill the bio-fouling.  The 1st one of these items I bought was used 1 time and, halfway through the hot-dip, the item went haywire and started climbing.  Since I use three different thermometers simultaneously for just such a failure, I was able to disregard the item.  I thought the failure might have been due to a cracked wire leading to the probe, so, 8 months later when I got ready to do the hot-dip again, I ordered another one of these items.  This one was even worse.  The other two thermometers (Taylor Digital Waterproof Maximum/Minimum Thermometer, -20 to 120 Degrees F and a General Tools AQ150 Digital Aquarium Thermometer ) were within 8 degrees of each other (the Taylor is my new standard, since it has two probes and is within 1 or 2 degrees of the liquid thermometer I use to calibrate them with).  The new Thomas item, while it didn't vary in its readings, was 38-degrees too high the entire time!  If you are willing to do a calibration test yourself (using ice water for example), and then add or subtract the error while you are working, this item might be OK.  But why bother when the other thermometers, especially the Taylor, are much more accurate.  It is a shame the item doesn't work better, because I liked its shape and versatility.  But, those are no good if its not accurate!  So - Buyer Beware!  JBK

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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-03-06*