---
product_id: 402835592
title: "FLUKE - FLUKE51-2 - FLUKE 51 DIGITAL THERMOMETER"
brand: "fluke"
price: "R12811"
currency: ZAR
in_stock: true
url: https://www.desertcart.co.za/products/402835592-fluke-fluke51-2-fluke-51-digital-thermometer
store_origin: ZA
region: South Africa
---

# 1000-hour battery life with sleep mode Min/Max/Avg with relative time tracking Wide temp range -250°C to 1372°C FLUKE - FLUKE51-2 - FLUKE 51 DIGITAL THERMOMETER

**Brand:** fluke
**Price:** R12811
**Availability:** ✅ In Stock

## Summary

> 🌟 Measure Like a Pro, Anywhere, Anytime!

## Quick Answers

- **What is this?** FLUKE - FLUKE51-2 - FLUKE 51 DIGITAL THERMOMETER by fluke
- **How much does it cost?** R12811 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/402835592-fluke-fluke51-2-fluke-51-digital-thermometer)

## Best For

- fluke enthusiasts

## Why This Product

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

## Key Features

- • **Smart Monitoring On-the-Go:** Relative time clock on MIN, MAX, and AVG readings lets you track temperature trends effortlessly.
- • **Built to Brave the Elements:** Splash and dust resistant with impact-absorbing holster—ready for the toughest job sites.
- • **Endurance for the Long Haul:** Sleep mode extends battery life to 1000 hours, so you stay powered through every project.
- • **Versatility Meets Convenience:** Supports J, K, T, and E thermocouples with selectable °C, °F, or Kelvin scales for any industrial environment.
- • **Precision that Powers Your Decisions:** Lab-grade accuracy with ±0.05% precision above -100°C ensures you never miss a critical reading.

## Overview

The Fluke 51 Series II Digital Thermometer delivers laboratory-grade accuracy across an ultra-wide temperature range (-250°C to 1372°C) using multiple thermocouple types (J, K, T, E). Designed for industrial durability with splash/dust resistance and an impact-absorbing holster, it features a relative time clock for min/max/avg readings and a 1000-hour battery life with sleep mode. Perfect for professionals demanding precision and reliability in harsh environments.

## Description

Laboratory accuracy. Wherever you go. Fluke's rugged 51 Series II Thermometers offer high accuracy with fast response times to quickly capture your measurement and show you trends. Features: Relative time clock on MIN, MAX, and AVG provides a time reference for major events Electronic Offset function allows compensation of thermocouple errors to maximize overall accuracy Measures J, K, T, and E-types of thermocouples Readout in °C, °F, or Kelvin (K) Splash and dust resistant case protected by impact absorbing holster User-friendly front panel is easy to set up and operate Sleep mode increases battery life; typical 1000-hour battery life Battery door allows easy battery replacement without breaking the calibration seal Optional ToolPak accessory allows the thermometer to hang from any metal object (with the rare earth magnet) or secure around a pipe (with hook-and-loop straps) for hands-free operation. 3 year warranty Specifications: Temperature accuracy Above -100°C: J, K, T, E-type: ±0.05% + 0.3°C] Below -100°C: J, K, E-types: ± 0.20% + 0.3°C, T-type: ±0.50% + 0.3°C Temperature J-type: -210°C to 1200°C K-type: -200°C to 1372°C T-type: -250°C to 400°C E-type: -150°C to 1000°C Temperature scale: ITS-90 Applicable standards: NIST-175 Display Resolution: 0.1°C, 0.1 K >=1000 Environmental Specifications Operating Temperature: -10°C to 50°C Storage Temperature: -40°C to 60°C Humidity (Without Condensation): 0% to 90%; 0°C to 35°C 0% to 70%; 0°C to 50°C Safety Specifications Overvoltage category: CSA C22.2 No. 1010.1 1992; EN 61010 Amendments 1,2 Agency Approvals: CE, CSA Mechanical & General Specifications Size: 173 mm L x 86 mm W x 38 mm Weight: 400 g Batteries: 3 AA batteries; typical 1000-hour life Includes: Single Input Digital Thermometer with Impact absorbing holster and One 80PK-1 bead probe thermocouple

## Features

- Thermocouple thermometer for use in applications requiring a broad range of temperatures, including furnaces, kilns, freezers, and other industrial applications
- Measures temperatures in Celsius, Fahrenheit, or Kelvin via a Type K, Type J, Type T, or Type E thermocouple probe
- Includes a Type K bead thermocouple probe with a 40" cable that measures from -40 to +260 degrees C (-40 to +500 degrees F)
- Provides the relative time of minimum, maximum, and average temperature measurements for monitoring
- Conforms to NIST standards for compliance with regulations

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Fluke |
| Model Number | 674686 |
| Product Dimensions | 2.54 x 2.54 x 2.54 cm; 300 g |
| Material | PE_(Polyethylene) |
| Special Features | Digital |
| Item Weight | 300 g |

## Product Details

- **Brand:** Fluke
- **Special features:** Digital
- **Age range (description):** Adult
- **Included components:** Fluke 2AC custom, Fluke 53-2B
- **Outer material:** Plastic

## Images

![FLUKE - FLUKE51-2 - FLUKE 51 DIGITAL THERMOMETER - Image 1](https://m.media-amazon.com/images/I/616BmG0DkJL.jpg)

## Questions & Answers

**Q: Are these manufactured in the usa? usually if so, the ad will make a big deal of the fact. this one didn't...**
A: The Fluke 51-2 is not assembled in the USA.

**Q: Can i leave the probe inside my gas fired forge and read the temp for determining heat treat temps on various steels? pretty much twice a week or more**
A: You may want to get a stainless steel probe if you want to leave it in for 2 weeks. What is the Temperature Range and I can Ask Fluke what they recommend.

**Q: Does this unit come with the actual nist certificate?**
A: It did when I bought it, but that was 5 years ago.

**Q: how many temperature probes does the Fluke 51-2 come with?  It says 1 or 2 -- I am not sure how many come with a regular/standard shipment.**
A: The 51-2 comes with a single probe, the 52-2 comes with 2. One is a single input and one is double.

## Frequently Bought Together

- Fluke 51 II Single Input Digital Thermometer
- Fluke 80PK-22 SureGrip Immersion Temperature Probe
- Fluke C35 Polyester Soft Carrying Case

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**Shop now:** [https://www.desertcart.co.za/products/402835592-fluke-fluke51-2-fluke-51-digital-thermometer](https://www.desertcart.co.za/products/402835592-fluke-fluke51-2-fluke-51-digital-thermometer)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-02-22*