testo 103 - Folding food thermometer

Order-Nr.  0560 0103

  • Ideal for use with food: HACCP compliant / certified according to EN 13485

  • Splash water protected / IP55 rated

  • Practical folding mechanism for quick and easy measuring / fits in any shirt or trouser pocket

  • Easy to use / high-precision technology

The testo 103 is the smallest folding food thermometer in its class – making it perfect for carrying out spot checks in the food industry!


Product Description

The testo 103 food thermometer is the smallest folding food probe thermometer in its class. At a little over 4 in. it is so small it fits in any shirt or trouser pocket. And because the probe can be folded away, it can’t break off or cause any harm or damage.

The testo 103 food thermometer – ideal for food safety inspections

The testo 103 food probe thermometer is ideal for checking incoming goods, catering services, commercial kitchens, cold storage rooms and supermarkets. It can be used everywhere where food is sold, stored or processed to ensure that temperatures are kept and quality and hygiene standards are met.

The thermometer’s thin, rugged sensor tip leaves virtually no trace when used for carrying out spot checks on liquid and semi-solid media.

The probe can also measure the core temperature of food at an angle of only 30°. This is particularly important as it is not always possible to measure at an angle of 180°, i.e. when food is in storage, stacked in boxes or on display.

When you’re finished, simply fold the probe away and pop the thermometer back into your pocket. The testo 103 food probe thermometer is not only HACCP compliant and EN 13485 certified but also splash water protected making it ideal for use in the food sector.

Delivery Scope

testo 103 folding food thermometer with foldable temperature sensor, user guide, calibration certificate, batteries

Technical Data

Temperature - NTC

Measuring range

-22° to 428 °F / -30 to +220 °C


±0.9 °F (-22° to 211.8) °F) / ±0.5 °C (-30 to +99.9 °C)

±1.0 % of mv (212° to 428 °F) / ±1.0 % of mv (+100 to +220 °C)


0.1 °F / 0.1 °C

Reaction time

t99 = 10 sec (Measured in moving liquid)

General technical data


1.62 oz. (including battery) / 46 g (including battery)


7.4 x 1.4 x 0.7 in. (probe folded out) / 189 x 35 x 19 mm (probe folded out)

4.5 x 1.4 x 0.7 in. (probe folded away) / 115 x 35 x 19 mm (probe folded away)

Operating temperature

-4.0° to 140.0 °F / -20 to +60 °C



Protection class


Product colour


Length probe shaft

2.953 in. / 75 mm

Length probe shaft tip

0.866 in. / 22 mm

Diameter probe shaft

0.118 in. / 3 mm

Diameter probe shaft tip

0.091 in. / 2.3 mm

Switch on/off

With folding mechanism (approx. 30°) / Auto off after 60 mins.

Measuring rate

0.5 sec


EN 13485

Battery type

2 lithium batteries (CR2032)

Battery life

300 h (at +25 °C)

Display type


Display size


Display ligthing


Storage temperature

-22.0° to 158.0 °F / -30 to +70 °C