
User Manual
THE STANDARD IN PRECISION MEASUREMENT
Dual-Input Data Logging
Thermometers
with NIST-Traceable Calibration
Thermocouple Meter,
Type J/K/T Input
Model 20250-92
Thermistor Meter
Model 20250-94
RTD Meter
Model 20250-96
99 Washington Street
Melrose, MA 02176
Phone 781-665-1400
Toll Free 1-800-517-8431
Visit us at www.TestEquipmentDepot.com

Introduction
The Digi-Sense Dual-Input Thermometers with Data
Logging (20250-92, -94, -96) offer fast response and
high accuracy. Advanced features include data logging,
USB interface, relative time clock, offset compensation,
temperature differential, data Hold, Max/Min/Avg readings,
and auto power-off. The instrument is fully tested and
calibrated to NIST-traceable standards. Careful use of this
meter will provide years of reliable service.
Unpacking
Carefully unpack the instrument and accessories from
shipping package. Check individual parts against the list
of items below. If anything is missing or damaged, please
contact your instrument supplier immediately.
1. Meter
2. USB cable
3. Software
4. Soft carrying case
5. Lanyard
6. One 9 volt battery
7. User manual
8. NIST-traceable calibration report with data
2

Key Features
• Large backlit display shows any combination of
T1, T2, T1–T2; plus Max, Min, and Avg readings
• Relative time clock on Max/Min/Avg provides a
time reference for major events
• Electronic Offset function allows compensation of
probe errors to maximize overall accuracy
• USB interface
• Data logging capacity of 16,000 sampling points
• User-selectable readout in °C or °F
• Automatic power-off (sleep) mode conserves battery life
• Dual sensor inputs; accept a wide variety of probes
3

Meter Description
1. Up () button
2. Down () button
3. MODE (Max/Min/Avg/Dif)
button
4. SET button
5. Backlight button
6. LOG (data logging) button
7. Data HOLD button
8. CAL (offset/calibration)
button
9. Power on/off button
10. LCD
11. Temperature sensor
inputs (2)
4

Display Layout
1. Hold icon
2. Low-battery indicator
3. MAX icon
4. MIN icon
5. AVG icon
6. DIF icon
7. User-selectable tempera-
ture units (°C or °F)
8. Low alarm icon
9. High alarm icon
10. Real-time clock
11. Data logging icon
12. T2 temperature value
13. T2 input icon
14. T2 input type (J, K, T;
20250-92 only)
15. T1 temperature value
16. T1 input icon
17. T1 input type (J, K, T;
20250-92 only)
5