Digital Freezer Thermometer Fridge Temperature with Alarm, Backlight, Magnet, Power On/Off

• Water Tank Temperature Monitoring: Keep your aquatic pets and reptiles comfortable with accurate temperature tracking. This thermometer with a remote waterproof sensor precisely measures water temperature in tropical fish tanks, goldfish aquariums, and reptile enclosures for bearded dragons, geckos, and similar pets. The sensor can be placed directly in water or inside the habitat, while the main display unit must be kept dry as it is not waterproof. Note: This thermometer is not suitable for seawater use.

• Fridge/Freezer Temperature Monitoring: Ensure food safety and freshness by placing the sensor in the center of your refrigerator or freezer for the most accurate readings. Do not attach the sensor to doors or food items, as this may cause inaccurate results. The magnetized main unit can be conveniently attached to the outside surface. Avoid pulling or bending the sensor cable to maintain accuracy and durability.

• High/Low Temperature Alarms with Mute Option: Customize both high and low temperature alarm thresholds according to your needs. The thermometer emits an audible alert when temperatures exceed the preset range. For quiet environments such as bedrooms or offices, the alarm can be muted and visual LED alerts can be used instead.

• Handy Features: Includes a backlight that stays on for 10 seconds for easy viewing in dark areas, a power-off function to conserve battery life, a low battery indicator, and a Celsius/Fahrenheit switch. The thermometer also records maximum and minimum temperatures with 24-hour or full-period data memory for convenient historical temperature review.

• Durable for Daily Use: Powered by 2 AAA batteries for long-lasting performance over several months. The waterproof external sensor is designed to withstand condensation in home refrigerators or spills in restaurant environments. Built for reliability in frequently opened family fridges or high-traffic commercial freezers without missing readings.

• Specifications: Main Unit Dimensions: 8.8cm x 6.5cm x 2.3cm (3.46" x 2.56" x 0.91"). Main Unit Temperature Range: -10°C to 50°C (14°F to 122°F). Sensor Cable Length: 100cm (39.37 inches). Sensor Temperature Range: -50°C to 90°C (-58°F to 194°F). Measurement Accuracy: ±1°C / ±2°F.