Fluke
Fluke 51 II Single-Input Digital Thermometer J K T E Thermocouple −200°C to 1372°C
Fluke 51 II Single-Input Digital Thermometer J K T E Thermocouple −200°C to 1372°C
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Fluke 51 II Single-Input Digital Thermometer
| Specification | Verified Product Data |
|---|---|
| Manufacturer | Fluke Corporation |
| Exact Model | 51 II |
| Product Family | Fluke 50 Series II |
| Product Type | Single-Input Digital Thermometer |
| Measurement Method | Contact Thermocouple |
| Number of Inputs | 1 (Single Channel) |
| Supported Thermocouples | J, K, T, E |
| J-Type Temperature Range | −210°C to +1200°C |
| K-Type Temperature Range | −200°C to +1372°C |
| T-Type Temperature Range | −250°C to +400°C |
| E-Type Temperature Range | −150°C to +1000°C |
| Accuracy Above −100°C | ±(0.05% + 0.3°C) |
| Accuracy Below −100°C (J/K/E) | ±(0.20% + 0.3°C) |
| Accuracy Below −100°C (T) | ±(0.50% + 0.3°C) |
| Display Resolution Below 1000° | 0.1°C / °F / K |
| Display Resolution at 1000° or Above | 1°C / °F / K |
| Temperature Units | °C / °F / K |
| Display | Backlit Dual-Line LCD |
| Recording Functions | MIN / MAX / AVG |
| Time Reference | Relative Time |
| Electronic Offset | Supported |
| Operating Temperature | −10°C to +50°C |
| Storage Temperature | −40°C to +60°C |
| Power Supply | 3 × AA Batteries |
| Typical Battery Life | 1000 Hours |
| Dimensions | 173 × 86 × 38 mm |
| Weight | Approx. 400 g |
| Availability | IN STOCK |
Product Overview
The Fluke 51 II is a single-input digital contact thermometer in the Fluke 50 Series II, designed for temperature measurements in industrial maintenance, HVAC, laboratory and process applications. It supports J, K, T and E-type thermocouples, with a K-type instrument measurement range of −200°C to +1372°C and a basic temperature accuracy of ±(0.05% + 0.3°C) above −100°C. Its backlit dual-line LCD supports temperature readings in Celsius, Fahrenheit and Kelvin. The instrument features MIN/MAX/AVG recording, relative time reference and electronic offset adjustment for thermocouple compensation. The portable unit operates on three AA batteries, providing a typical battery life of approximately 1000 hours. The supplied actual product photographs show a thermometer marked Fluke 51 II and an orange thermocouple lead, together with Fluke 51/52 II series packaging. The full accessory set, operational condition and calibration status should be confirmed before ordering.
Key Product Features
- Single-Input Temperature Measurement — One thermocouple input for direct contact temperature measurements.
- J, K, T and E Thermocouple Support — Compatible with four commonly used industrial thermocouple types.
- Wide K-Type Instrument Range — Supports measurement from −200°C to +1372°C with an appropriately rated thermocouple sensor.
- High Basic Accuracy — ±(0.05% + 0.3°C) instrument accuracy above −100°C.
- Backlit Dual-Line Display — Clear temperature display for industrial environments.
- MIN/MAX/AVG Recording — Records temperature extremes and average values.
- Relative Time Reference — Provides elapsed-time information for recorded temperature events.
- Electronic Offset Compensation — Helps compensate for thermocouple sensor errors.
- Multiple Temperature Units — Supports Celsius, Fahrenheit and Kelvin.
- Portable Handheld Design — Compact instrument for industrial maintenance and field temperature checks.
- Long Typical Battery Life — Approximately 1000 hours with three AA batteries under typical operating conditions.
Actual Product Verification
In Stock & Available to Order
Fluke 51 II single-input digital thermometer is marked in stock based on the supplied inventory information. Actual photographs identify the Fluke 51 II instrument and its accompanying thermocouple lead. This model supports J, K, T and E thermocouples for industrial temperature measurements. Please confirm the required quantity, probe type and operating range, accessory requirements, calibration documentation and shipment arrangements before completing an order.
Fluke 51 II Digital Thermometer
Contact us for exact-model verification, multiple units and industrial test equipment sourcing. Please confirm your thermocouple type, temperature range and calibration requirements before ordering.
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