Testo 104 Waterproof Digital Food Thermometer

Professional Core Temperature Checks for Food Safety

The Testo 104 digital food thermometer is designed for quick and reliable core temperature spot checks throughout food production, preparation, storage, catering and retail environments. Its thin stainless steel penetration probe folds directly into the instrument, combining professional temperature measurement with a compact and practical design.

With a measuring range from -50°C to +250°C, IP65 waterproof protection and compliance with HACCP requirements, the Testo 104 is particularly suited to professional food safety and quality control applications. It is also certified according to EN 13485 for thermometers used in the transport, storage and distribution of chilled, frozen and deep-frozen food.

Folding Penetration Probe for Core Temperature

The integrated penetration probe is designed for checking the core temperature of foods, liquids, semi-solid products and viscous materials. Its thin probe tip has a diameter of only 2.3mm, helping to minimise the mark left on the product during insertion.

Wide -50°C to +250°C Measuring Range

The Testo 104 covers temperatures from -50°C to +250°C, making it suitable for both chilled and heated food applications across production, preparation, transport, storage and serving processes.

IP65 Waterproof for Easier Hygienic Cleaning

The IP65-rated housing allows the thermometer to be cleaned under running water, an important advantage when the instrument is used regularly in professional food environments where hygiene is essential.

HACCP Compliant and EN 13485 Certified

Designed specifically for professional food temperature monitoring, the Testo 104 is HACCP compliant and EN 13485 certified. This makes it particularly suitable for food businesses carrying out temperature checks as part of quality assurance, food safety and cold chain procedures.

Automatic Final Value Recognition

The Auto Hold function recognises when the measured value has stabilised and retains the final reading on the display. A manual Hold function is also available when you need to retain a measurement for convenient viewing.

Min/Max Temperature Memory

Minimum and maximum measurement values can be displayed for Hold and Auto Hold readings, providing additional information when carrying out repeated temperature checks.

Backlit Digital Display

The illuminated LCD makes temperature readings easy to view in different working environments, including food storage and preparation areas with limited lighting.

Compact Folding Design

When not in use, the penetration probe folds safely into the instrument. The rugged metal folding joint provides durability for regular professional use while making the thermometer compact enough for convenient storage and transport.

Key Features

• Professional digital food thermometer
• Integrated folding penetration probe
• -50°C to +250°C measuring range
• 0.1°C resolution
• Thin 2.3mm probe tip
• Approximately 10-second response time in moving liquid
• IP65 waterproof housing
• Can be cleaned under running water
• HACCP compliant
• EN 13485 certified
• Auto Hold and manual Hold functions
• Min/Max memory
• Backlit LCD display
• Non-slip surface for secure handling
• Automatic switch-on when the probe is unfolded

Technical Specifications

Model	Testo 104
Product Number	0563 0104
Product Type	Digital folding food thermometer
Sensor Type	NTC
Measuring Range	-50°C to +250°C
Accuracy	±1.0°C (-50 to -30.1°C) ±0.5°C (-30 to +99.9°C) ±1% of measured value (+100 to +250°C)
Resolution	0.1°C
Response Time	t99 = 10 seconds (in moving liquid)
Measuring Rate	0.5 seconds
Probe Shaft Length	102mm
Probe Shaft Diameter	3mm
Probe Tip Length	32mm
Probe Tip Diameter	2.3mm
Protection Class	IP65
Functions	Auto Hold, Hold, Min/Max
Display	Backlit LCD
Operating Temperature	-20°C to +60°C
Storage Temperature	-30°C to +70°C
Dimensions	163 × 47 × 20mm (probe folded)
Weight	165g including batteries
Power Supply	2 × AAA batteries
Battery Life	Approx. 100 hours at +25°C without display illumination
Standard	EN 13485

Typical Applications

• Food production and processing
• Commercial kitchens and catering
• Restaurants and hospitality
• Food retail and supermarkets
• Cold chain temperature checks
• Food storage and distribution
• Incoming goods inspection
• Core temperature measurement in liquids, semi-solids and viscous foods

What’s Included?

• Testo 104 digital food thermometer with folding temperature probe
• 2 × AAA batteries
• Adhesive colour strips
• Test protocol
• User guide

Explore our complete range of food thermometers for professional food preparation, catering, storage and temperature control applications.