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Testo 104 - Waterproof Digital Penetration Thermometer

The folding thermometer testo 104 measures food temperatures precisely at any time – in production, storage and processing, in food service, supermarket chains, food retail and wholesale, or in industrial areas. The testo 104 already begins measurement from a fold-out angle of 30°, and can therefore be used flexibly. After measurement, the probe can be simply folded away, and the instrument stored safely until the next measurement – for example in a trouser pocket. The folding thermometer testo 104 is compliant with HACCP and EN 13485.

  • The folding thermometer testo 104 is convenient for measurements of all kinds
  • It is ideally suited to core temperature measurements thanks to a robust metal folding joint and a long, stable measurement probe.
  • Protection class IP65, allows cleaning under running water and use under all conditions.
  • The rubber-coated surface guarantees non-slip handling.
  • The especially large, illuminated display allows fast and error-free readout of the measurement values.
  • Thanks to the coloured strips included in delivery, the instrument can be allocated to individual persons or certain areas of work.
  • It has automatic final value recognition thanks to Auto-Hold, and storage of min./max. values.
  • It is the 1st thermometer which combines a folding mechanism and waterproofness.

Storage temperature

-30 to +70 °C

Operating temperature

-20 to +60 °C

Battery type

2 batteries Type AAA

Battery life

100 h


165 g


265 x 48 x 19 mm



Probe - NTC

Meas. range

-50 to +250 °C


±1.0 °C (-50 to -30.1 °C)

±0.5 °C (-30 to +99.9 °C)

±1 % of mv (+100 to +250 °C)


0.1 °C / °F / °R

Response time

10 s


Hartwig instruments
Pottebakkerstraat 15
NL3194AD Rotterdam-Hoogvliet
Tel: +31(0)10-438-5286
Fax: +31(0)10-438-2099
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