This digital thermometer is user-friendly, dual channels can measure indoor and outdoor temperature. Large LCD display, / switchable. Features: Large LCD display and user friendly. Both channels can measure indoor and outdoor temperature, with outdoor temperature sensor wire extended.Display indoor and outdoor temperature by or .Minimum or maximum temperature display, easy to switch.Low power consumption, with high accuracy and stability. Specifications: Status: 100% brand new Material: ABS Color: White Power: 1 AAA battery (not included) Temperature range: -50~70 Measurement accuracy: 1 Refresh rate: 10s Size: approx. 8.5 x 6.2 x 2cm/3.35 x 2.44 x 0.79inch Weight: Approx. 72g Package Included: 1 x Digital Thermometer(Battery not included)1 x Manual Note: 1. Please allow 0-2cm error due to manual measurement. Thank you for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as default.