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Fluke 1551A-9 Intrinsically Safe Stik Thermometer, 9", -58 to 320°F

Model: 1551A-9

An intrinsically-safe, and battery-operated 9" stick reference thermometer safe for working in indoor or outdoor environments where potentially explosive gases may be present. Features a large backlit LCD that rotates up to 90°, and measures from -58 to 320°F (-50 to 160°C).

$1,138.50 CAD

was $1,265.00

1 to 2 Weeks
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Fluke 1551A-9 Offers

The "Stik" thermometer provides a temperature range of -58 to 320°F (-50 to 160°C) and delivers repeatable temperature measurements accurate to ±0.09°F (±0.05°C). It is rated intrinsically safe for working in indoor or outdoor environments where potentially explosive gases may be present and is a great choice for environments that aren't potentially explosive, as well such as the floor of a processing plant. The battery-operated thermometer is ideal for daily checks of working thermometers, custody transfer temperature determination, PET calibration, LIG calibration, and temperature transmitter calibration and verification.

The stainless steel probe and digital readout are fixed together and calibrated as a system. The large backlit LCD rotates 90° degrees, making it easy to read from any angle, and the user-configurable stability/trend indicator lets you know when your temperature is stable enough to record an accurate measurement. A user-settable auto-off function extends typical battery life to up to 300 hours, and the low-battery indicator and stop-measure function prevent erroneous measurements from being made due to a low battery. Plus you can easily and accurately calibrate it with a simple three-point calibration function.


  • Intrinsically-safe, battery operated, portable reference thermometer
  • Provides accuracy of ±0.09°F (±0.05°C) over full range
  • Features intrinsically-safe operation (ATEX and IECEx compliant)
  • Measures -58 to 320°F (-50 to 160°C)
  • Provides user-configurable temperature with Trend/Stability indicator
  • Displays temperature in °C or °F
  • Delivers 300-hour battery life
  • Shows percent battery-life and low-battery indicators

Fluke 1551A-9 Specifications

Temperature Range -58 to 320°F (-50 to 160°C)
Accuracy (1 Year) ±0.09°F (±0.05°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 second)
Readout Temperature Coefficient Add ±10 ppm/°C of full scale temperature from 14 to 64°F (−10 to 18°C) and 82 to 122°F (28 to 50°C)
Probe Temperature Coefficient 0.00385 Ω/Ω/°C Nominal
Nominal Probe Resistance at 0°C 100 Ω
Probe Hysteresis ±0.01°C
Response time 14 seconds
Operating Temperature Range Readout 14 to 122°F (-10 to 50°C)
Storage Temperature -4 to 140°F (-20 to 60°C)
0 to 95% RH, non-Condensing
Display Units °C, °F
Sensor Type: 100 Ω thin-film RTD
Length: ≤0.4" (10 mm)
Position (from sheath tip): 0.1" (3 mm)
Minimum Immersion Depth Wet medium (liquid bath, thermowell with thermal compound) 2.8" (70 mm)
Dry medium (dry-well, thermowell without thermal compound) 4.8" (120 mm)
Maximum Immersion Depth 2" (50 mm) less than the total length. Make sure the last 50 mm of probe, nearest to the internal electronics of the device, are not put into the heat source
Probe Sheath Material Stainless steel
Logging Intervals 2 seconds, 5 seconds, 10 seconds, 30 seconds, or 60 seconds
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)
DC Power 3 x AAA batteries, typical battery life of 300 hours without LCD backlight
Battery Life Approximately 300 hours (12.5 days) of continuous operation with the backlight off
Battery Save (Auto-Off) Range Selectable from 1 to 30 minutes or can be disabled
Safety IEC 60079-0, IEC 60079-11: Ex ib IIB T4 Gb; IEC 61010-1: Pollution Degree 2
Electromagnetic Compatibility International: IEC 61326-1: Portable Equipment; IEC 61326-2-2; CISPR 11: Group 1, Class B
USA (FCC): 47 CFR 15 subpart B. This product is considered an exempt device per clause 15.103
Dimensions 5 x 2.5 x 1.4" (125 x 62 x 35 mm)
Probe Size 3/16 x 9" (4.8 x 229 mm)
Weight 6.9 oz (196 g)
Click here for complete specifications on the Fluke 1551A-9

What's included with the Fluke 1551A-9

  • Thermometer
  • NVLAP-Accredited Report of Calibration
  • 3 x AAA Batteries
  • User's Guide on CD-ROM

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Customer Reviews for the Fluke 1551A-9