1. פּראָדוקט איבערview
The Testo 104-IR is a versatile dual-purpose thermometer designed for accurate temperature measurements in various applications, particularly within the food industry. It combines the functionality of an infrared thermometer for non-contact surface temperature readings and a foldable penetration probe for precise core temperature measurements.
Its robust, waterproof design (IP65) makes it suitable for demanding environments, and its compact, foldable form factor ensures portability and ease of use. The device features a clear, backlit LCD display for quick and easy readouts, and it is HACCP compliant, ensuring reliability for food safety applications.

Figure 1: The Testo 104-IR thermometer with its foldable penetration probe extended, showing the digital display.
2. זיכערקייַט אינסטרוקציעס
- Always read the user manual thoroughly before operating the device.
- Do not point the infrared laser directly at eyes or reflective surfaces.
- Ensure the penetration probe is clean before and after each use, especially when measuring food items.
- שטעלט נישט אויס דעם אפאראט צו עקסטרעמע טעמפעראטורן אדער דירעקטער זון פאר לענגערע צייטן.
- Use only the specified battery type (2 x AAA batteries).
- האַלטן די מיטל אויס פון דערגרייכן פון קינדער.
- אַוועקוואַרפן באַטעריעס און דעם אַפּאַראַט לויט די לאָקאַלע רעגולאַציעס.
3. סעטאַפּ
3.1 באַטאַרייע ייַנמאָנטירונג
- געפֿינען די באַטאַרייע אָפּטייל אויף די צוריק פון די מיטל.
- עפענען די באַטאַרייע אָפּטייל דעקן.
- אַרײַנשטעלן צוויי AAA באַטעריעס, און זיכער מאַכן אַז די פּאָלאַריטעט איז ריכטיק (+/-).
- פאַרמאַכן די באַטאַרייע אָפּטייל דעקן סיקיורלי.

פיגורע 2: View of the battery compartment, showing the placement of AAA batteries.
3.2 ערשט מאַכט אויף
The device automatically powers on when the penetration probe is unfolded. Ensure the display illuminates upon unfolding.
4. אַפּערייטינג ינסטרוקטיאָנס
4.1 Infrared (IR) Measurement (Non-Contact)
For quick surface temperature readings, use the infrared sensor. This is ideal for checking temperatures of packaged goods or surfaces without direct contact.
- Ensure the penetration probe is folded in.
- Point the front of the thermometer towards the surface to be measured.
- Press the "ON" button to activate the infrared measurement and laser pointer. The laser dots indicate the measurement area.
- לייענען די טעמפּעראַטור געוויזן אויף די לקד פאַרשטעלן.

פיגורע 3: נאָענט-אַרויף view of the Testo 104-IR's top, showing the two infrared laser pointers in operation.
4.2 Penetration Probe Measurement (Contact)
For accurate core temperature readings of semi-solid or liquid substances, use the foldable penetration probe.
- Unfold the penetration probe. The device will automatically power on.
- Insert the probe into the substance to be measured, ensuring the tip is fully immersed to the desired depth.
- Wait for the reading to stabilize on the display. The device has a fast reaction time (t99 = 10 seconds in moving liquid).

Figure 4: The Testo 104-IR in use, measuring the core temperature of a food item with its penetration probe.
4.3 Hold and Min/Max Functions
- האלט: Press the "HOLD" button to freeze the current temperature reading on the display. Press again to release.
- MIN / MAX: While in measurement mode, press the "MIN/MAX" button to cycle through the minimum and maximum temperatures recorded during the current measurement session.
4.4 מאַכט אויסגעלאשן
To turn off the device, fold the penetration probe back into its housing. The device will automatically power down.
5. וישאַלט
5.1 רייניקונג
The Testo 104-IR is waterproof (IP65 rated), allowing for easy cleaning under running water or with a damp cloth. Ensure the probe is thoroughly cleaned and disinfected after each use, especially when used with food products.

Figure 5: The Testo 104-IR demonstrating its waterproof capability by being rinsed under running water.
5.2 באַטערי פאַרבייַט
When the battery indicator on the display shows low power, replace the batteries as described in Section 3.1. Always use fresh AAA batteries.
5.3 סטאָרידזש
Store the thermometer in a clean, dry place at room temperature. Ensure the probe is folded in to protect it from damage.
6. טראָובלעשאָאָטינג
| פּראָבלעם | מעגלעך סיבה | לייזונג |
|---|---|---|
| די מיטל איז נישט קער אויף. | באַטעריעס זענען טויט אָדער נישט ריכטיק אַרײַנגעשטעלט. | קאָנטראָלירט די פּאָלאַריטעט פון די באַטעריע אָדער פאַרבייט די באַטעריעס. |
| ומפּינקטלעך רידינגז. | Probe not fully immersed; IR sensor obstructed; Emissivity setting incorrect (for IR). | Ensure probe is fully immersed. Clean IR sensor. Refer to advanced settings for emissivity adjustment if applicable (not detailed in basic manual). |
| דער עקראַן איז טונקל אָדער פליקערט. | נידעריק באַטאַרייע מאַכט. | פאַרבייַטן באַטעריז. |
7. טעכניש ספּעסאַפאַקיישאַנז
| פּאַראַמעטער | ווערט |
|---|---|
| Measuring Range (NTC Probe) | -58° to 482°F / -50 to +250°C |
| Measuring Range (Infrared) | -22° to 482°F / -30 to +250°C |
| Accuracy (NTC Probe) | ±2°F (-58° to -22.2°F), ±0.9°F (-22° to 211.8°F), ±1% of mv (Remaining Range) |
| Accuracy (Infrared) | ±4.5°F (-22° to -4.2°F), ±3.6°F (-4° to 31.8°F), ±2.7°F or ±1.5% of mv (Remaining Range) |
| האַכלאָטע | 0.1°F / 0.1°C |
| Reaction Time (NTC Probe) | t99 = 10 sec (measured in moving liquid) |
| מעאַסורינג קורס | 0.5 סעק |
| וואָג | 7 oz. (incl. batteries) / 198 g (incl. batteries) |
| Dimensions (probe folded) | 178 X 48 X 23 מם (7 X 1.9 X 0.9 אינטש) |
| אַפּערייטינג טעמפּעראַטור | -4° to 122°F / -20 to +50°C |
| האָוסינג מאַטעריאַל | ABS / TPE / PC, diecast zinc, stainless steel |
| סטאַנדאַרדס | EN 13485, HACCP Compliant |
| באַטערי טיפּ | 2 רענטגענ אַאַאַ באַטעריז |
| באַטערי לעבן | 10 h at 25°C typical |
| ווייַז טיפּ | LCD, באַקלייט |
| שוץ קלאַס | IP65 (וואָטערפּרוף) |
8. וואָראַנטי און שטיצן
Testo products are manufactured to high quality standards and come with a manufacturer's warranty. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official Testo webפּלאַץ.
For technical support, service, or calibration inquiries, please contact Testo customer service. Contact information can typically be found on the Testo webזייטל אדער אין די פּאַקקאַגינג מאַטעריאַלן.
You can visit the official Testo store on Amazon for more information: Testo Store





