Features 1、Made of high quality ABS material, it is durable, wear-resistant and corrosion-resistant 2、With LCD display, large screen display, clear data display, temperature display can be converted indoors and outdoors 3、It is equipped with probe to support outdoor temperature maximum and minimum alarm 4、Low power consumption, high precision, stable performance, sensitive response, long-term use 5、The ''Maximum/Minimum'' button allows you to view maximum/minimum indoor/outdoor temperature and humidity Specifications Features: Made of high quality ABS material, it is durable, wear-resistant and corrosion-resistant. With LCD display, large screen display, clear data display, temperature display can be converted indoors and outdoors. It is equipped with probe to support outdoor temperature maximum and minimum alarm. Low power consumption, high precision, stable performance, sensitive response, long-term use. The ''Maximum/Minimum'' button allows you to view maximum/minimum indoor/outdoor temperature and humidity. The ''℃/℉'' button can be used to convert the temperature unit. The method of operation is simple and practical. It is widely used and easy to use. It can be placed in refrigerators, factories, aquariums and homes. Specification: Condition: 100% Brand New Material: ABS Deviation: ±1 °C Accuracy: 0.1 ° C Temperature Range (Indoor): 0°C - 50°C (32°F - 122°F) Temperature Range (Outdoor): -50 ° C - 70 ° C (-58 ° F - 158 ° F) Battery: 1.5V 1 x AAA Battery (Battery Not Included) Weight: Approx. 63g / 2.2oz Size: Approx. 63x63x14mm / 2.5x2.5x0.6in Length of Sensor Cable: Approx. 1.5m Operation method: 1. ''Maximum/Minimum'' button: Press the ''Maximum/Minimum'' button, the screen will display the maximum temperature and humidity detection, and press the ''Maximum/Minimum'' button again, the screen will display the lowest temperature and Humidity detection. 2. ''IN/OUT'' button: This product is the default to display when the outdoor temperature and humidity are displayed (outdoor temperature probe), and the indoor mode can be changed by pressing the ''IN/OUT'' button. 3. ''°C/°F'' button: Press the ''°C/°F'' button (black button on the back of the product) once to select Celsius or Fahrenheit. 4. Alarm setting button: press the ''alarm'' button for 2 seconds, the screen will flash, the product will change the alarm setting mode, ''high'' (highest temperature) is set to the default, press the ''alarm'' button again to change ''Low'' (lowest temperature) setting. When the number of screens is flashing, press the ''°C/°F'' button (black button on the back of the product) to set the temperature range (temperature range is -50 - 70°C). After the setting is completed, press the ''alarm'' button again to resume normal display. Package List: 1 x Thermometer (Battery Not Included) 1 x Connecting Line Note: 1. If the screen data is not clearly displayed, it indicates that the battery is insufficient and needs to be replaced. 2. When replacing batteries, the alarm clock needs to be reset and the highest/lowest temperature and humidity should be removed. Package List