1. Produk verbyview
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.

Voorkant 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. Pakketinhoud
Verifieer dat alle items in die pakket teenwoordig is:
- 1 x McKesson Refrigerator and Freezer Thermometer (Model MCK821RFV)

The thermometer unit shown alongside its retail packaging box.
3. Spesifikasies
| Handelsmerk | McKesson |
| Model | MCK821RFV |
| Spesiale kenmerk | Waterdig |
| Kleur | Wit |
| Temperatuurreeks | -58 ° C tot + 158 ° C -50 ° F tot + 70 ° F |
| Tipe vertoon | Digital, Triple Display |
| Kragbron | 2 x 1.5 V Type AA batteries |
| Batterylewe | Approximately 8000 hours (continuous operation) |
| Sertifisering | NIST Opspoorbaar |
| Monteer Opsies | Flip-out desk stand, wall-mounting, magnetic hook-and-loop attachment |
| Item gewig | 0.49 pond |
4. Opstelling
4.1 Battery installasie
- Vind die battery kompartement op die agterkant van die termometer.
- Maak die batteryvakdeksel oop.
- Insert two 1.5 V Type AA batteries, ensuring correct polarity (+/-).
- Maak die batterykompartement se deksel stewig toe.
4.2 Probe Placement
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 Montering van die termometer
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.
- Muurmontering: Use the designated mounting hole on the back of the unit to hang it on a screw or hook.
- Magnetiese aanhegting: Utilize the magnetic hook-and-loop attachment to secure the unit to a metallic surface.
5. Operasie
5.1 Krag aan/af
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 Temperature lesing
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 Switching Temperature Units (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 Resetting Min/Max Readings
To clear the recorded minimum and maximum temperatures, press and hold the 'MODE' button until the MIN/MAX values reset on the display.

'n Gedetailleerde view of the thermometer's digital display and the 'MODE' and 'EVENT' control buttons.
6. Onderhoud
6.1 Skoonmaak
To clean the thermometer, wipe it with a clean, damp 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 Batteryvervanging
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. Probleemoplossing
- Skerm is leeg of dof: Check battery installation and replace batteries if necessary. Ensure batteries are inserted with correct polarity.
- Onakkurate lesings: Ensure the probe is correctly positioned and not obstructed. Verify that the probe cable is intact. If issues persist, contact technical support.
- Alarm word nie geaktiveer nie: 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. Waarborg en Ondersteuning
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.
Kontakinligting:
- Algemene vrae: Call 1-800-777-4908
- Tegniese ondersteuning: Call 1-973-300-9100

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