Fluke 51 II Single-Input Digital Thermometer
The Fluke 51 II is a single-input digital thermometer that provides fast response with laboratory accuracy (0.05% + 0.3°C). It is compatible with J, K, T, and E type thermocouple probes, making it an essential tool for professional temperature measurements in practically any application.
The overall measurement range varies depending on the probe type used. Measurements can be output in Kelvin, Celsius, or Fahrenheit. The following measurement ranges are possible:
- J Type: -210°C to 1200°C (-346°F to 2192°F)
- K Type: -200°C to 1372°C (-328°F to 2501°F)
- T Type: -250°C to 400°C (-418°F to 752°F)
- E Type: -150°C to 1000°C (-238°F to 1832°F)
The Fluke 51 II is designed for industrial use with a splash and dust-resistant casing and a backlit LCD screen for clear viewing in dark environments. It also features a relative time clock to provide a reference for major events, making it easier to troubleshoot specific temperature problems over time.
Fluke 51 II Thermometer Key Features
- Single-input digital thermometer suitable for J, K, T, and E thermocouple probes
- Laboratory-grade accuracy of 0.05% + 0.3°C
- Selectable units: Celsius (°C), Fahrenheit (°F), or Kelvin (K)
- Electronic offset function compensates for thermocouple errors to maximize accuracy
- MIN/MAX/AVG recording with relative time stamps
- Sleep mode to conserve battery life
- Easy-access battery door without breaking the calibration seal
What's Included?
- Fluke 51 II Digital Thermometer
- Impact Absorbing Holster
- 80PK-1 One-Bead Thermocouple Probe (Type K)
Fluke 50 II Series Comparison
The Fluke 51 II is the entry-level model in the series. The table below outlines the differences across the 50 II range.
| Model Number | 51 II | 52 II | 53 II | 54 II |
|---|---|---|---|---|
| Thermocouple Types | J, K, T, E | J, K, T, E | J, K, T, E, N, R, S | J, K, T, E, N, R, S |
| Number of Inputs | 1 | 2 | 1 | 2 |
| Time Stamp | Relative | Relative | Time of Day | Time of Day |
| Data Logging | - | - | Yes (500 pts) | Yes (500 pts) |
| PC Interface | - | - | Yes (IR Port) | Yes (IR Port) |
