Utangulizi
This manual provides comprehensive instructions for the safe and effective use of your GEFU 21840 Digital Roasting Thermometer. Please read all instructions carefully before first use and retain this manual for future reference.

The GEFU 21840 Digital Roasting Thermometer, featuring a clear digital display and a durable stainless steel probe, designed for precise temperature monitoring during cooking.
Vipengele vya Bidhaa
- Onyesho la kidijitali kwa ajili ya usomaji wa halijoto ulio wazi.
- Integrated timer function with alarm.
- Pre-programmed temperature settings for various meat types and doneness levels.
- Heat-resistant stainless steel probe and cable (up to 250 °C / 482 °F).
- Magnetic back for convenient attachment to metallic surfaces.
- Muundo thabiti na unaobebeka.

The thermometer's display indicates various meat types and their recommended doneness levels, simplifying the cooking process.

The integrated timer function allows for precise timing of cooking processes, with an alarm to notify when the set time is reached.
Sanidi
1. Ufungaji wa Betri
The GEFU 21840 thermometer requires one AAA battery. The battery compartment is located on the back of the unit.
- Fungua kifuniko cha sehemu ya betri.
- Ingiza betri moja ya AAA, kuhakikisha polarity sahihi (+/-).
- Funga kifuniko cha sehemu ya betri kwa usalama.
2. Muunganisho wa Kichunguzi
Connect the stainless steel probe cable to the designated port on the side of the thermometer unit. Ensure the connection is firm.
Maagizo ya Uendeshaji
1. Washa/Zima
Bonyeza kwa WASHA/ZIMWA button to turn the thermometer on or off.
2. Kuweka Joto
- Insert the stainless steel probe into the thickest part of the food, avoiding bones.
- The current internal temperature will be displayed under "THERMO TEMP".
- To set the target temperature, use the MODE button to select the desired meat type (e.g., Beef, Poultry, Pork) and doneness level (e.g., Rare, Medium, Well). The "SET TEMP" display will show the pre-programmed target temperature.
- Alternatively, you can manually adjust the target temperature using the HR (Saa) na MIN (Minute) buttons (these buttons also function as up/down arrows for temperature adjustment in some modes).
- Once the food reaches the "SET TEMP", an alarm will sound.

The thermometer can be conveniently attached to an oven or other metallic surfaces using its magnetic back, allowing for continuous monitoring of food temperature during cooking.
3. Kutumia Kazi ya Kipima Muda
The thermometer also functions as a standalone timer.
- Bonyeza kwa TIMER button to switch to timer mode.
- Tumia HR na MIN buttons to set the desired countdown time (up to 99 hours and 59 minutes).
- Bonyeza kwa ANZA/ACHA button to begin or pause the countdown.
- An alarm will sound when the timer reaches zero.
Matengenezo na Utunzaji
- Kusafisha: Wipe the thermometer unit clean with a damp cloth. Do not immerse the main unit in water. The stainless steel probe can be washed with warm soapy water.
- Hifadhi: Store the thermometer and probe in a dry place when not in use.
- Ubadilishaji wa Betri: Replace the AAA battery when the display becomes dim or the unit does not power on.
- Utunzaji wa Uchunguzi: Avoid bending or kinking the probe cable excessively, as this may damage the internal wiring.
Kutatua matatizo
| Tatizo | Sababu inayowezekana | Suluhisho |
|---|---|---|
| Onyesho ni tupu au hafifu. | Betri ya chini au iliyokufa. | Badilisha betri ya AAA. |
| Usomaji wa joto usio sahihi. | Probe not fully inserted or damaged. | Ensure probe is inserted into the thickest part of the food. Check probe and cable for damage. |
| Kengele haisikiki. | Volume too low or alarm function disabled. | Check settings for alarm volume. Ensure alarm is enabled for temperature or timer. |
Vipimo
- Mfano: GF21840
- Chapa: GEFU
- Chanzo cha Nguvu: Betri 1 x AAA (imejumuishwa)
- Vipimo vya Bidhaa: 6.5 x 7.2 x 1.8 cm (main unit) / 18.7 x 9 x 3 cm (packaging); 120 g
- Nyenzo ya Uchunguzi: Chuma cha pua
- Cable Heat Resistance: Up to 250 °C / 482 °F
- Aina ya Kuonyesha: Dijitali
- Vipengele Maalum: Alarm, Timer, Magnetic Back
- Vipengele vilivyojumuishwa: 1 Thermometer unit, 1 Stainless Steel Probe, 1 AAA Battery
- Maagizo ya utunzaji: Wipe clean (main unit), wash probe with soapy water.

Detailed dimensions of the GEFU 21840 thermometer unit and probe, including cable length and probe thickness.
Udhamini na Msaada
GEFU products are manufactured to high quality standards. For warranty information or technical support, please refer to the official GEFU website or contact their customer service directly. Retain your proof of purchase for warranty claims.
Mtengenezaji: Gefu
Tarehe ya Kwanza Inapatikana: Januari 15, 2020





