Quick answer: The testo 108-2 is an IP67 food thermometer supplied with a lockable Type T penetration probe. Lock and connect the correct probe, sanitize it, take a stabilized core-temperature reading and document it against the applicable receiving, cooking or holding specification.
The 108-2 feature that changes the procedure
The testo 108-2 (product 0563 1082) differs from the standard 108 through its mechanically secured probe connection. The lockable Type T probe helps prevent unintended disconnection during repeated food checks. Its instrument measuring range is -50 to +300 °C, but the supplied probe and application determine the usable conditions. The listed Auto-hold, Hold and min/max functions can support routine inspection records.
Do not fit a Type K probe merely because the closely related testo 108 accepts one. Select parts specifically listed for the 108-2.
Prepare the probe and instrument
- Inspect the lockable connector, stainless-steel tip and cable; replace a damaged probe before relying on its readings.
- Seat and secure the probe according to the 108-2 operating instructions; confirm the connector is fully engaged.
- Clean and sanitize the measurement area as required by the food hygiene plan.
- Select the correct unit, position the sensor within the food and wait for a stable display before using Hold or Auto-hold.
- Record the actual measurement and food location; sanitize between samples to avoid transferring contamination.
Where to take readings
| Situation | Appropriate check | Common error |
|---|---|---|
| Cooked portion | Penetration into the representative thickest region | Probe touches bone or hot pan |
| Receiving chilled food | Approved sample location and product temperature | Assuming air or packaging temperature equals core temperature |
| Liquid food | Immersion at an appropriate depth with mixing where safe | Reading only a surface layer |
| Frozen product | Compatible sensor and approved technique | Forcing an unsuitable tip into hard food |
Example: repeated product checks
Hypothetical: a measured food center reads 4.6 °C, then 4.8 °C after the probe is repositioned. The difference is 0.2 °C. This demonstrates local variation and repeatability only; it does not establish that the product meets a legal temperature threshold. Record the chosen acceptance criterion separately. For related guidance, see testo 106 Food Temperature Guide: Core Checks and Alarms.
Cleaning, water resistance and calibration
IP67 is specified for the instrument with a correctly connected compatible probe; it is not permission to soak an open connector or ignore the manual’s cleaning restrictions. The product page identifies HACCP compatibility and EN 13485; these do not substitute for a current calibration program or a documented hygiene procedure.
If a measurement appears implausible, verify the sensor is seated, allow thermal stabilization and compare against a documented reference appropriate for the range. Do not adjust a probe or invent a calibration correction without authorized instructions.
Choose the 108-2 instead of the 108 when…
Probe retention and a straightforward Type T workflow are priorities. Choose the standard testo 108 when interchangeable Type T/Type K compatibility matters, after reviewing the exact sensor and accessory list. The 108-2 is a spot thermometer, not a continuous cold-chain logger.