--- product_id: 442882819 title: "FLUKE - FLUKE51-2 - FLUKE 51 DIGITAL THERMOMETER" brand: "fluke" price: "£512.06" currency: GBP in_stock: true reviews_count: 5 category: "Fluke" url: https://www.desertcart.co.uk/products/442882819-fluke-fluke51-2-fluke-51-digital-thermometer store_origin: GB region: United Kingdom --- # 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:** £512.06 **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?** £512.06 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/442882819-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 - • **Built to Endure:** Splash and dust resistant with impact-absorbing holster for rugged environments - • **User-Centric Design:** Intuitive front panel and easy battery replacement without breaking calibration seal - • **Hands-Free Convenience:** Optional ToolPak magnet and strap lets you focus on the job, not the tool - • **Real-Time Trend Tracking:** Min, Max, and Average temps logged with time stamps for actionable insights - • **Precision Meets Versatility:** Supports J, K, T, and E thermocouples for all your industrial needs ## Overview The Fluke 51 Series II Digital Thermometer delivers lab-grade accuracy across an ultra-wide temperature range (-250°C to 1372°C) using multiple thermocouple types. Engineered for industrial durability with splash/dust resistance and impact protection, it features a user-friendly interface, long-lasting 1000-hour battery life, and advanced min/max/average tracking with relative time stamps. Perfect for professionals demanding precision, reliability, and hands-free operation 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 Review: Great temperature meter - Well, it's a Fluke. It's tough and dependable like all of their meters. Review: Accurate - With all fluke products they are a little on the spendy side but they are reliable and hold up great! ## 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 | |---------------|-------| | ASIN | B000VRCSX4 | | Age Range Description | Adult | | Age range (description) | Adult | | Battery Life | 1000 Hours | | Best Sellers Rank | 245,512 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 223 in Lab Digital Thermometers 677 in Infrared Thermometers 34,542 in Components & Replacement Parts | | Brand | Fluke | | Colour | Black, Yellow | | Connectivity Technology | Wired (Thermocouple) | | Customer Reviews | 4.6 out of 5 stars 61 Reviews | | Display Type | Lcd | | Global Trade Identification Number | 00095969071321 | | Included Components | Fluke 2AC custom, Fluke 53-2B | | Included components | Fluke 2AC custom, Fluke 53-2B | | Indoor Outdoor Usage | Outdoor | | Item Weight | 300 Grams | | Manufacturer | Fluke Corporation | | Manufacturer Part Number | 674686 | | Model Name | 51 II | | Model Number | FLUKE-51-2 | | Number of Batteries | 3 AA batteries required. (included) | | Outer Material | Plastic | | Outer material | Plastic | | Power Source | Battery Powered | | Product Care Instructions | Wipe Clean | | Response Time | 500 Milliseconds | | Reusability | Rechargeable | | Smart Home Compatibility | Not Smart Home Compatible | | Special Features | Digital | | Special feature | Digital | | Specification Met | NIST | | Style Name | 51-2 | | UPC | 095969071321 | | Unit Count | 1 Thermometer | | Upper Temperature Rating | 1372 Degrees Celsius | ## Product Details - **Brand:** Fluke - **Special feature:** Digital - **Colour:** Black, Yellow - **Age range (description):** Adult - **Included components:** Fluke 2AC custom, Fluke 53-2B - **Outer material:** Plastic - **Specification met:** NIST - **Display type:** Lcd - **Connectivity technology:** Wired (Thermocouple) - **Product care instructions:** Wipe Clean ## 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. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great temperature meter *by A***R on 29 October 2025* Well, it's a Fluke. It's tough and dependable like all of their meters. ### ⭐⭐⭐⭐⭐ Accurate *by B***E on 17 July 2025* With all fluke products they are a little on the spendy side but they are reliable and hold up great! ### ⭐⭐⭐⭐⭐ If you care about temperatures *by C***C on 13 February 2025* Fluke has really thought out their line of digital thermometer instruments. Although this is the basic model of the line, it has all the accuracy, durability for daily field use, and flexibility to accept the various Fluke probes. The clear choice for HVAC professionals, code inspectors, laboratory work, serious hobbyists, etc. ## Frequently Bought Together - Fluke 51 II Single Input Digital Thermometer - Fluke 80PK-22 SureGrip Immersion Temperature Probe - Fluke C35 Polyester Soft Carrying Case --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/442882819-fluke-fluke51-2-fluke-51-digital-thermometer](https://www.desertcart.co.uk/products/442882819-fluke-fluke51-2-fluke-51-digital-thermometer) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-02*