1. Prodotto finitoview
The McKesson Refrigerator and Freezer Thermometer (Model MCK821RFV) is a waterproof digital thermometer designed to monitor temperatures in refrigerators and freezers. It features a triple display that simultaneously shows current, minimum, and maximum temperatures. The device is equipped with an audible and visual alarm for temperature excursions and operates on two AA batteries.

Davanti view of the McKesson Refrigerator and Freezer Thermometer, displaying time and temperature readings.
Official product video demonstrating the features and use of the McKesson Refrigerator and Freezer Thermometer.
2. Contenuto della confezione
Verificare che tutti gli articoli siano presenti nel pacco:
- 1 x McKesson Refrigerator and Freezer Thermometer (Model MCK821RFV)

The thermometer unit shown alongside its retail packaging box.
3. Specifiche
| Marca | McKesson |
| Modello | MCK821RFV |
| Caratteristica speciale | Impermeabile |
| Colore | Bianco |
| Intervallo di temperatura | Da -58° F a +158° F (da -50° C a +70° C) |
| Tipo di visualizzazione | Digital, Triple Display |
| Fonte di alimentazione | 2 x 1.5 V Type AA batteries |
| Durata della batteria | Circa 8000 ore (funzionamento continuo) |
| Certificazione | Tracciabile NIST |
| Opzioni di montaggio | Flip-out desk stand, wall-mounting, magnetic hook-and-loop attachment |
| Peso dell'articolo | 0.49 libbre |
4. Impostazione
4.1 Installazione della batteria
- Individuare il vano batterie sul retro del termometro.
- Aprire il coperchio del vano batterie.
- Insert two 1.5 V Type AA batteries, ensuring correct polarity (+/-).
- Chiudere saldamente il coperchio del vano batterie.
4.2 Posizionamento della sonda
The thermometer includes a single probe for temperature measurement. For accurate readings, place the probe in the desired monitoring location within your refrigerator or freezer. Ensure the probe cable is not pinched or damaged by the appliance door.

The thermometer unit with its probe extended, ready for placement in a temperature-controlled environment.
4.3 Mounting the Thermometer
The main unit can be placed using one of the following methods:
- Flip-out Desk Stand: Extend the stand on the back of the unit to place it on a flat surface.
- Montaggio a parete: Use the designated mounting hole on the back of the unit to hang it on a screw or hook.
- Attacco magnetico: Utilize the magnetic hook-and-loop attachment to secure the unit to a metallic surface.
5. Funzionamento
5.1 Accensione/spegnimento
The thermometer powers on automatically once batteries are installed. There is no manual power off button; the unit operates continuously until batteries are depleted or removed.
5.2 Lettura delle temperature
The triple display shows the current temperature, along with the recorded minimum (MIN) and maximum (MAX) temperatures since the last reset. These values update continuously.
5.3 Cambio unità di temperatura (Fahrenheit/Celsius)
To switch between Fahrenheit (°F) and Celsius (°C), locate the 'MODE' button on the front of the unit. Press the 'MODE' button to toggle the display between the two units.
5.4 Setting Alarms (Max/Min)
The thermometer allows you to set desired maximum and minimum temperature limits. An audible and visual alarm will activate if the temperature goes above the set maximum or below the set minimum.
- Press and hold the 'EVENT' button to enter alarm setting mode.
- Use the 'MODE' button to adjust the desired maximum temperature.
- Press 'EVENT' again to confirm the maximum temperature and move to setting the minimum temperature.
- Use the 'MODE' button to adjust the desired minimum temperature.
- Press 'EVENT' one more time to save the settings and exit alarm setting mode.
5.5 Reimpostazione delle letture min/max
To clear the recorded minimum and maximum temperatures, press and hold the 'MODE' button until the MIN/MAX values reset on the display.

Un dettagliato view of the thermometer's digital display and the 'MODE' and 'EVENT' control buttons.
6. Manutenzione
6.1 Pulizia
Per pulire il termometro, pulirlo con un panno pulito e asciutto.amp cloth. Do not use abrasive cleaners or immerse the unit in water, despite its waterproof feature, to prevent damage to the display or internal components.
6.2 Sostituzione della batteria
When the low-battery indicator appears on the display, replace the two AA batteries as described in the 'Battery Installation' section (4.1). Prompt battery replacement ensures continuous and accurate temperature monitoring.
7. Risoluzione Dei Problemi
- Il display è vuoto o poco luminoso: Check battery installation and replace batteries if necessary. Ensure batteries are inserted with correct polarity.
- Letture imprecise: Ensure the probe is correctly positioned and not obstructed. Verify that the probe cable is intact. If issues persist, contact technical support.
- L'allarme non si attiva: Double-check the set maximum and minimum alarm limits as described in section 5.4. Ensure the current temperature is outside these limits to trigger the alarm.
- Difficulty programming: Refer to section 5.4 for detailed steps on setting alarm limits. If the buttons are unresponsive, try replacing the batteries. For persistent issues, contact technical support.
8. Garanzia e supporto
McKesson offers a satisfaction guarantee. If you are not completely satisfied with your McKesson Brands product, you may return it for a full refund or credit.
Informazioni sui contatti:
- Domande generali: Chiama il numero 1-800-777-4908
- Supporto tecnico: Chiama il numero 1-973-300-9100

The back of the product packaging, detailing manufacturing information, support contacts, and the NIST Traceable label.