The working principle of a wireless meat thermometer is mainly realized through a temperature probe and wireless signal transmission technology.

A wireless meat thermometer usually of a temperature probe and a receiving display. The temperature probe is equipped with a temperature-sensing resistor or a temperature-measuring chip, which can sense the temperature inside the meat block and convert the temperature information into an electrical signal. The probe also contains a portable battery, which provides power for the temperature-measuring chip and the Bluetooth trans. The Bluetooth transceiver is responsible for sending the temperature information out through wireless signals.

The receiving display part contains a wireless signal receiver, a display screen, and a control circuit. The wireless signal receiver can receive the temperature information sent by the probe and transmit it to the central processing unit on the control circuit board for processing. The central processing unit displays the temperature data on the display screen for the user to observe the temperature of the meat block in real time.

In addition, some high-end wireless meat thermometers are also equipped a temperature setting alarm component. Users can set the desired temperature of the meat block through the button. When the actual temperature reaches the set value, the controller will trigger the alarm alert the user.