ABOUT THIS ITEM: Temperature Range: The indoor/outdoor thermometer measures indoor temperatures from -10°C to 60°C (14°F to 140°F) and outdoor temperatures from -40°C to 60°C (-40°F to 140°F). The transmission range is up to 100 meters (328 feet) in open areas. Suitable for use in refrigerators, freezers, or outdoor environments to help monitor conditions for food storage. The wireless thermometer console features ble and visual alerts when the temperature goes beyond the user-set minimum and maximum thresholds. Easy to Read Display: The LCD screen has large digits and displays both current and historical temperature readings, including recorded minimum and maximum values. This allows for easy monitoring of temperature fluctuations in refrigeration units, supporting food safety practices. Multiple Installation Options: The display unit can be placed on a flat surface, mounted on a wall, or attached to a refrigerator using the built-in magnet. The wireless sensor can be clipped onto doors or hung on walls. The main unit includes six function keys, and the transmitter has a signal indicator. Use the buttons to enable or disable alarms, switch between Celsius and Fahrenheit, and reset the MAX/MIN records. Features: - Large-digit LCD screen for clear visibility - Displays indoor and outdoor temperature, MAX/MIN records, and temperature trend indicators - Includes two sensor transmitters for placement in different locations - Manual MAX/MIN alarm settings with ble alert - Compact and sleek design ideal for home, restaurant, or café use Notes: - Do not disassemble the device - Replace the battery if the display becomes dim - Avoid placing the unit in areas that are excessively hot, humid, dusty, or exposed to corrosive gases to prevent damage to internal components - The alarm does not trigger immediately upon temperature deviation. The system checks the reading after 10 minutes and will sound the alarm immediately if the threshold is still exceeded Package Included: 1 x Main Unit 2 x Transmitters 1 x User Manual