1. Equipped with wireless sensor, the wireless transmission/open transmission distance is 100m, which can be measured even at a long distance. 2. The large LCD screen displays a large number of numbers, which is very easy to read and convenient for your use. 3. It is very suitable for homes, offices, modern plant greenhouses, incubators, nutrition rooms, schools, laboratories, baby rooms, hospitals and other places. 4. Mini digital thermometer has low energy consumption, high and good stability, and can display weather and indoor and outdoor temperatures. 5. The design is compact and simple, with shelves and holes fixed on the hook wall, which can be hung or erected. Weight: about 127g / 4.5oz Main machine product size: about 12x7.5x1.5cm / 4.7x3.0x0.6in Main unit battery parameters:2 x AAA battery (excluding) Outdoor transmitter battery parameters:2 x AAA battery (excluding) Internal temperature range: 0-60℃ Outdoor temperature range:-40-60℃ Temperature accuracy: ±1℃ Temperature resolution: 0.1℃ Color:As Shown Material:ABS Package Contents: 1 * Host unit 1 * Sensor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.