--- product_id: 20508558 title: "51 II Single Input Digital Thermometer" brand: "fluke" price: "4377 Lei" currency: RON in_stock: true reviews_count: 8 category: "Fluke" url: https://www.desertcart.ro/products/20508558-51-ii-single-input-digital-thermometer store_origin: RO region: Romania --- # 40-inch Type K probe cable 500ms fast response Measures -40°C to 1372°C 51 II Single Input Digital Thermometer **Brand:** fluke **Price:** 4377 Lei **Availability:** ✅ In Stock ## Summary > 🌟 Stay ahead of the heat curve with Fluke 51 II – precision that professionals trust! ## Quick Answers - **What is this?** 51 II Single Input Digital Thermometer by fluke - **How much does it cost?** 4377 Lei with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/20508558-51-ii-single-input-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 - • **Multi-Unit Mastery:** Seamlessly switch between Celsius, Fahrenheit, and Kelvin for global-ready readings. - • **Rapid Response Time:** Get real-time data in just 500 milliseconds—because every second counts. - • **Versatile Temperature Range:** From freezing freezers to blazing furnaces, handle -40°C to 1372°C with ease. - • **Durability Meets Dependability:** Built tough for industrial environments, backed by Fluke’s legendary reliability. - • **Precision that Powers Your Projects:** NIST-traceable accuracy ensures your measurements meet the highest standards. ## Overview The Fluke 51 II Single Input Digital Thermometer is a high-accuracy thermocouple thermometer designed for demanding industrial applications. It supports multiple thermocouple types (K, J, T, E) and measures temperatures from -40°C to 1372°C with a rapid 500ms response time. Featuring a 40-inch Type K bead probe and NIST-traceable calibration, it delivers reliable, versatile, and fast temperature readings essential for professionals working in furnaces, kilns, freezers, and more. ## Description The Fluke Digital thermocouple thermometer is used for applications requiring a broad range of temperatures, including furnaces, kilns, freezers, and other industrial applications. This thermometer measures temperatures in Celsius, Fahrenheit, or Kelvin via a Type K, Type J, Type t, or Type E thermocouple probe. It comes with one or two Type K bead thermocouple probes with 40 inch. 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 minus 40 to +260 degrees C ( minus 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 | | Additional Features | High Accuracy | | Age Range (Description) | Adult | | Age Range Description | Adult | | Best Sellers Rank | #53,526 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #22 in Lab Digital Thermometers | | Brand | Fluke | | Brand Name | Fluke | | Color | Black, Yellow | | Connectivity Technology | Wired (Thermocouple) | | Customer Reviews | 4.6 out of 5 stars 63 Reviews | | Display Type | Digital | | Global Trade Identification Number | 00095969071321 | | Included Components | Type K bead thermocouple probe with a 40-inch cable | | Indoor Outdoor Usage | Indoor | | Item Length | 5 Inches | | Item Type Name | Tester | | Item Weight | 300 Grams | | Manufacturer | Fluke Corporation | | Model | FLUKE-51-2 | | Model Name | 51 II | | Number of Batteries | 3 AA batteries required. (included) | | Outer Material | Plastic | | Part Number | 674686 | | Power Source | Hand Powered | | Product Care Instructions | Wipe Clean | | Response Time | 500 Milliseconds | | Reusability | Reusable | | Special Feature | High Accuracy | | Specification Met | NIST | | Style Name | 51-2 | | UPC | 095969071321 | | Unit Count | 1.0 Count | | Upper Temperature Range | 1372 Degrees Celsius | | Warranty Description | Call vendor for warranty | ## Product Details - **Age Range (Description):** Adult - **Brand:** Fluke - **Color:** Black, Yellow - **Connectivity Technology:** Wired (Thermocouple) - **Display Type:** Digital - **Included Components:** Fluke 51 II contact thermometer - **Outer Material:** Plastic - **Product Care Instructions:** Wipe Clean - **Special Feature:** High Accuracy - **Specification Met:** NIST ## Images ![51 II Single Input 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 October 29, 2025* Well, it's a Fluke. It's tough and dependable like all of their meters. ### ⭐⭐⭐⭐⭐ Accurate *by B***E on July 17, 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 February 13, 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.ro/products/20508558-51-ii-single-input-digital-thermometer](https://www.desertcart.ro/products/20508558-51-ii-single-input-digital-thermometer) --- *Product available on Desertcart Romania* *Store origin: RO* *Last updated: 2026-07-08*