DIGI-SENSE DIGI-SENSE 20250-33 Manual

99 Washington Street
Melrose, MA 02176
Phone [phone]

User Manual

Visit us at www.TestEquipmentDepot.com

Toll Free 1-800-517-8431

Pen-Style Pocket Thermometer

with NIST-Traceable Calibration

Model 20250-33

THE STANDARD IN PRECISION MEASUREMENT

Introduction

The Digi-Sense Pen-Style Pocket Thermometer (Model
20250-33) offers fast response and laboratory accuracy with

0.1°C/0.1°F resolution over the entire measurement range.
Advanced features include °F/°C unit selection, Min/Max/
Hold, and automatic 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

Check individual parts against the list of items below. If
anything is missing or damaged, please contact your
instrument supplier immediately.

1. Pocket thermometer

2. One LR44 (1.5V) battery, installed

3. Protective sleeve

4. User manual

5. NIST-traceable calibration report with data

Key Features

• User-selectable °C or °F units

• Min/Max/Hold function

• Automatic power-off to conserve battery life

• Rubberized protective housing

2

Meter Description

1. Protective cover

2. Temperature probe

3. LCD

4. °C/°F button

5. Power ON/OFF button

6. HOLD/MAX/MIN button

4

3

2

Setup and Operation

Power

Remove the thermometer from
its protective sleeve and press
the Power ON/OFF button to
turn thermometer on.

Taking Measurements

1. For best results, insert the stem of the thermometer
at least ½ inch into the testing area.

2. When the thermometer is turned on, the LCD will
show “0.0°C” or “32.0°F” for two seconds. Then the
actual temperature will display. To save battery life,
the thermometer will automatically turn off after
approximately 20 minutes.

1

6

5

Changing Unit of Measure

Change the temperature unit from °C to °F by pressing
the °C/°F button.

3

Setup and Operation (continued)

Hold Function

1. Press the HOLD button once. “Hold” will appear on the
display.

2. Press the HOLD button three times to exit the hold
function.

Viewing the Min and Max Readings

The MIN/MAX mode allows the user to view only the
lowest (MIN) or highest (MAX) reading.

Press the

1.
on the display. The LCD is now displaying the highest
temperature reading.

Press the

2.
appear on the display. The LCD is now displaying the
lowest temperature reading.

3. Press the HOLD button once more to exit the MIN/MAX
mode.

Note: While powering on the thermometer each time, it
restarts recording Minimum and Maximum, and the
recordings don’t stop until the meter is turned off.

HOLD button twice and the MAX icon appears

HOLD button once more and the MIN icon

4

Specifications

Temperature

Resolution 0.1°F/C

Accuracy 1.5% ±4°F (±2°C) full scale

Display LCD

Response time 20 seconds

Auto power-off Unit shuts off automatically after 20 minutes

Weight 1.5 oz (42.5 g)

Dimensions (L x W x H) 8

Power One LR44 (1.5V) battery

Full usable range: –40 to 482°F (–40 to 250°C)
NIST certified range: 32 to 300°F (0 to 150°C)

to preserve battery life

1

⁄4" x 11⁄4" x 3⁄4" (211 x 32 x 19 mm)

5

Maintenance, Recalibration, and Repair

Cleaning and Storage

• Thermometer should be cleaned with a damp cloth and
mild detergent when necessary. Do not use solvents or
abrasives.

• Store the meter in an area with moderate temperature and

humidity

Battery Replacement

If the battery power falls low, open the battery cover (Fig. 2)
and replace the LR44 battery (Fig. 1). Close the cover securely.

(Fig. 2)

.

(Fig. 1)

6

7

It is recommended that Digi-Sense products are calibrated
annually to ensure proper function and accurate measure-

ments; however, your quality system or regulatory body may
require more frequent calibrations. To schedule your recali­bration, please contact InnoCal, an ISO 17025 calibration
laboratory accredited by A2LA.

Phone: 1-866-INNOCAL (1-866-466-6225)
Fax: [phone]
E-mail: [e-mail]
Web: InnoCalSolutions.com

For Product and Ordering Information, Contact:

Visit us at www.TestEquipmentDepot.com

1065DGMAN_20250-33 Rev.1

99 Washington Street
Melrose, MA 02176

Phone [phone]
Toll Free 1-800-517-8431

Manual Part No. 00100-64