1. Продукт закінчивсяview
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.

Фронт 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. Вміст упаковки
Перевірте наявність усіх елементів в упаковці:
- 1 x McKesson Refrigerator and Freezer Thermometer (Model MCK821RFV)

The thermometer unit shown alongside its retail packaging box.
3. Технічні характеристики
| Бренд | Маккессон |
| Модель | MCK821RFV |
| Особливість | Водостійкий |
| Колір | Білий |
| Діапазон температур | Від -58 ° F до + 158 ° F (від -50 ° C до + 70 ° C) |
| Тип дисплея | Digital, Triple Display |
| Джерело живлення | 2 x 1.5 V Type AA batteries |
| Термін служби батареї | Приблизно 8000 годин (безперервна робота) |
| Атестація | NIST Відстежуваний |
| Варіанти монтажу | Flip-out desk stand, wall-mounting, magnetic hook-and-loop attachment |
| Вага товару | 0.49 фунта |
4. Налаштування
4.1 Встановлення батареї
- Знайдіть батарейний відсік на задній панелі термометра.
- Відкрийте кришку батарейного відсіку.
- Insert two 1.5 V Type AA batteries, ensuring correct polarity (+/-).
- Надійно закрийте кришку батарейного відсіку.
4.2 Розміщення зонда
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.
- Настінне кріплення: Use the designated mounting hole on the back of the unit to hang it on a screw or hook.
- Магнітне кріплення: Utilize the magnetic hook-and-loop attachment to secure the unit to a metallic surface.
5. Операція
5.1 Увімкнення/вимкнення живлення
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 Вимірювання температури
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.

Детальний view of the thermometer's digital display and the 'MODE' and 'EVENT' control buttons.
6. Технічне обслуговування
6.1 Очищення
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 Заміна батареї
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. Вирішення проблем
- Дисплей порожній або тьмяний: Check battery installation and replace batteries if necessary. Ensure batteries are inserted with correct polarity.
- Неточні показники: Ensure the probe is correctly positioned and not obstructed. Verify that the probe cable is intact. If issues persist, contact technical support.
- Сигналізація не спрацьовує: 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. Гарантія та підтримка
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.
Контактна інформація:
- Загальні питання: Зателефонуйте за номером 1-800-777-4908
- Технічна підтримка: Зателефонуйте за номером 1-973-300-9100

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