Usage Tips:1. Adjustable Alarm Functions: Offers customizable upper and lower temperature alarm settings for precise monitoring. 2. Wide Measurement Range: Capable of measuring temperatures from -40°C to 150°C, suitable for diverse environments. 3. Product Parameters: - Measurement range: -40°C~150°C - Power cord length: 1.5m - Size: 245 x 136 x 24mm 4. Instructions: - Key Functions: 1. Menu: Enter function options 2. Up key: Adjust settings and options 3. Down key: Adjust setting value reduction and selection - The order of menu key function options is: 1. Alarm switch 2. Set the upper limit of temperature alarm 3. Set the lower limit of temperature alarm - Product Functions: 1. Alarm switch: Long press the menu button to enter the menu function, short press the up button to turn on/off the alarm switch 2. Set the upper limit of temperature alarm: Press the menu key again to set the temperature upper limit alarm value, and use the up/down keys to adjust the alarm value 3. Set the lower limit of temperature alarm: Press the menu key again to set the temperature lower limit alarm value, and use the up/down keys to adjust the alarm value 5. Use Scenarios: Swimming pool, aquarium, sauna room, etc. 6. Company Profile: - Plug Type: EU Plug, applicable to Indonesia, Germany, France, Spain, Italy, and so on - Voltage: AC220V - Color: As Shown - Material: Plastic+Metal 7. Package Contents: 1 x Digital thermometer (Only the above package content, other products are not included) 8. Note: Light reflection and different displays may cause the color of the item in the picture to differ slightly from the real thing. The measurement allowed error is +/-1-3cm.