Fluke 1502A 'Tweener' PRT Thermometer

Fluke Calibration


Fluke Calibration authorised distributor.

The fluke 1502A measures the resistance of the probe and then converts the resistance to a temperature value using its built-in algorithms.

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£ 1,577.00 rrp £ 1,660.00

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(£ 1,892.40 inc VAT.)

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One of Fluke best-selling products is the Tweener thermometer, and there’s a reason. No other company, not one, has a thermometer that comes close to the performance and features of the Tweener. The 1502A Tweener features accuracy up to ± 0.006°C.Fluke 1502A back panel

Each Tweener is programmable to match a probe’s constants for maximum linearity and accuracy. All probe constants and coefficients are programmed through simple, front-panel keystrokes. Temperature is displayed in °C, °F, K, or resistance in ohms.


Measures 25Ω and 100Ω RTDs and SPRTs.
Four-wire connection eliminates lead resistance effects.
Fast one-second measurement cycle.
Adjustable digital filter.
Accepts ITS-90 characterization coefficients.
Also accepts Callendar-Van Dusen and IPTS-68 coefficients.
Adjustable excitation current.
Password protection of critical parameters.
Serial RS-232 interface standard; IEEE-488 GPIB interface optional.
Detachable power cord.
Light weight, small and portable.
Sturdy, reliable construction.

Fluke 1502A Specifications:

  • RT readout with accuracy up to ± 0.006°C.
  • Reads both 100Ω and 25Ω probes.
  • Resistance Resolution 0Ω to 20Ω: 0.0001Ω, 20Ω to 400Ω: 0.001Ω.
  • Resolution of 0.001°C across its entire range.
  • Measurement Period: 1 second.
  • Temp is displayed in °C, °F, K, or resistance in ohms.
  • Display: 8-digit, 7-segment, yellow-green LED; 0.5-inch-high characters.
  • Clock accuracy: typical 0.01%.
  • Calibration: Accredited NIST-traceable calibration provided.
  • Dimensions: 5.6 in (14.3 cm) (w) x 7.1 in (18.1 cm) (d) x 2.4 in (6.1 cm) (h).
  • Weight: 2.2 lb. (1.0 kg).
  • Fluke 1502A 'Tweener' Warranty: 1 year.


Includes: Extra probe connector, power cord & Fluke 1502A user’s guide.

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Fluke 1502A 'Tweener' PRT Thermometer