Testo 104-IR BT Infrared/Penetration Thermometer
The Testo 104-IR BT is a versatile thermometer designed to meet the high standards of the food industry, offering both infrared and core temperature measurement. With Bluetooth connectivity and a rugged, hygienic design, it’s ideal for reliable, on-the-go food safety checks.
Combining non-contact and core temperature measurements, the Testo 104-IR BT ensures accurate and efficient monitoring throughout the food handling process. The infrared sensor measures surface temperatures from -30 to +250 °C, with a dual-point laser and 10:1 optics for precise targeting. For internal readings, the stainless steel penetration probe covers -50 to +250 °C and folds away neatly to protect the tip when not in use.
Built for demanding environments, the 104-IR BT features a waterproof IP65-rated housing that’s easy to clean—perfect for use in HACCP-regulated settings. Bluetooth connectivity allows seamless integration with the Testo Smart App, enabling guided or manual measurements, easy data logging, and compliance with food safety standards. Whether checking deliveries, storage temperatures, or cooking processes, this compact, durable thermometer delivers trusted results every time.
Key Features:
- Combines infrared surface readings with a fold-out probe for accurate core temperature checks.
- Bluetooth-enabled for easy data transfer and reporting via the testo Smart App.
- Wide measurement range: -30 to +250 °C (infrared) and -50 to +250 °C (penetration probe).
- IP65-rated housing for water resistance and durability in tough, hygienic environments.
- Fully compliant with HACCP standards—ideal for food safety inspections and quality control.
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Model Testo 104-IR BT Penetration Probes Sensor Type NTC Measuring Range -50 to +250°C Resolution 0.1°C/°F/°R Accuracy ±1 digit ±1.0 °C (-50 to -30.1 °C)
±0.5 °C (-30 to +99.9 °C)
±1 % of m.v. (+100 to +250 °C)Adaptation Time (t99) 10 s (in moving liquid) Measurement Rate 0.5 s Infrared Measurement Optics 10:1 + opening diameter of the sensor (12mm) Spectral Range 8 to 14 μm Laser Type 2-point laser Power / Wavelength < 1mW / 650nm Class / Standard 2 / DIN EN 60825-1:2007 Measuring Range -30 to +250°C Resolution 0.1°C/°F/°R Accuracy (at 23°C, ± 1 digit) ±2.5 °C (-30.0 to -20.1°C)
±2.0 °C (-20.0 to -0.1°C)
± 1.5°C or ±1.5% of the measurement value (+0.0 to +250.0 °C)Measurement Rate 0.5 s General Technical Data Mobile app (Android / iOS) Can be used with or without testo Smart App Conformity EN 13485, HACCP, NSF Operating Temperature -20 to +50°C Transport / Storage Temperature -30 to +50°C (without batteries up to +70 °C) Voltage Supply 2 x AAA batteries Housing ABS/TPE/PC and die-cast zinc/stainless steel Protection Class IP65 Dimensions 281 x 48 x 21 mm (immersion/penetration probe opened)
178 x 48 x 21 mm (immersion/penetration probe closed)Weight 207 g (incl. batteries)