Button function features: 1. On/off function: When the probe is unfolded, it is turned on, and when the probe is closed, it is turned off. 2. Button function: In the temperature display state, click the button once to keep the LCD display value in the HOLD state; long press the button for 1.5 seconds to perform "C/F function conversion. 3. Quick temperature measurement in 3 seconds. 4. The whole machine is waterproof and can be washed, but cannot be soaked. 5. It has magnetic suction function and is shipped with a lanyard. 6. The probe can be folded 180°. 7. Automatically shut down within 10 minutes of no operation. Product parameters: 1. Temperature measurement range: -50~300C (-58~572*F) 2. Accuracy: ±1C (±2F) (between -50~200C); others ±2C (±2*F). 3. Resolution: 0.1C4. Measurement period: 0.8S Color: black Material: ABS+metal Package Contents: 1*food thermometer 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.