Accurate, stable and durable, making it the best alternative to mercury thermometers and existing electronic thermometers
Finally, a digital substitute for your mercury-in-glass thermometers! Accurate and repeatable to +/- 0.05°C over its full range, the Fluke 1551A, Fluke 1552A “Stik Thermometer is the new “gold standard" of industrial temperature calibration. Whether working outdoors in environments where potentially explosive gases may be present or on the floor of a processing plant, the intrinsically-safe, battery operated, portable reference thermometer is designed to go where you work.
• Accuracy of +/- 0.05°C (+/- 0.09°F) over full range
• Intrinsically safe (ATEX and IECEx compliant)
• Two models to choose from (-50°C - 160°C or -80°C - 300°C)
• User-configurable temperature Trend/Stability indicator
• Display temperature in °C or °F
• Optional data logging to internal memory
• 300 h battery life
• Percent battery-life and low-battery indicator
• NVLAP-accredited, NIST-traceable calibration included
Temperature Range | 1551A: -50°C - 160°C (-58°F - 320°F) 1552A: -80°C - 300°C (-112°F - 572°F) |
Accuracy (1 year) | +/- 0.05°C (+/- 0.09°F) |
Display Units | °C, °F |
Sensor Type | 1551A: 100 Ω thin-film RTD 1552A: 100 Ω wire-wound PRT |
Probe Temperature Coefficient | 0.00385 Ω/Ω/°C nominal |
Sensor Length | 1551A: ≤ 10 mm 1552A: ≤ 30 mm |
Sensor Position (From Sheath Tip) | 3 mm (0.1 in) |
Minimum Immersion Depth | 1551A: 7 cm (2.8 in) 1552A: 12 cm (4.8 in) |
Probe Sheath Material | Stainless steel |
Response Time | 4.8 mm diameter probe (3/16 in): 14 seconds 6.35 mm diameter probe (1/4 in): 21 seconds |
Probe Hysteresis | +/- 0.01°C |
Temperature Resolution | Selectable: 0.1, 0.01, 0.001 (default 0.01) |
Sample Rate | Selectable: 0.5 seconds, 1 seconds, 2 seconds (default 1 seconds) |
Operating Temperature Range Readout | -10°C - 50°C (14°F - 122°F) |
Temperature Resolution | Selectable: 0.1, 0.01, 0.001 (default 0.01) |
Sample Rate | Selectable: 0.5 seconds, 1 seconds, 2 seconds (default 1 seconds) |
Operating Temperature Range Readout | -10°C - 50°C (14°F - 122°F) |
Storage Temperature | -20°C - 60°C (-4°F - 140°F) 0 % to 95 % RH, non-condensing |
Optional Data Logging[1] | Up to 10,000 time-stamped readings stored to internal memory |
Logging Intervals[1] | 2 seconds, 5 seconds, 10 seconds, 30 seconds, or 60 seconds; 2 minutes, 5 minutes, 10 minutes, 30 minutes, or 60 minutes |
Damping | Moving average of the most recent 2 to 10 readings (ON/OFF, 2, 5, 10) |
Communications | RS-232 stereo jack (access calibration parameters only) |
AC Power | None |
DC Power | 3 AAA Batteries, typical battery life of 300 hours without LCD backlight |
EMC Compliance | EN61326:2006 Annex C; CISPR II Edition 5.0-2009; Class “B |
Enclosure Rating | IP50 |
Electronics Dimensions (H x W x D) | 114 mm x 57 mm x 25 mm (4.5 in x 2.25 in x 1.0 in) |
Weight | 196 g (6.9 oz) |
Calibration (Included) | NVLAP-accredited, NIST-traceable |
Characterization | 1551A: CVD 1552A: ITS-90 |
Fluke Calibration 1551A / 1552A Ex "Stik" Thermometer Readout - Data Sheet 4.3 MB |
Fluke Calibration 1551A / 1552A Ex "Stik" Thermometer Readout - Manual 555.2 KB |
Fluke Calibration 1551A / 1552A Ex "Stik" Thermometer Readout - Calibration Manual 405.5 KB |
Fluke Calibration 1551A / 1552A Ex "Stik" Thermometer Readout - Intrinsically Safe "Stik" Thermometers Brochure 1.4 MB |