Introduce：Features:
* temperature unit ℃/℉ changeable
*data-hold function
*memory of MAX/MIN value of temperature
*Temperature Range: -50℃～+300℃ (-58℉～+572℉)
*Power-supply: 1.5V（AG13）x1
* size：2.5*1.5*23.9(14.5cm+9.4cm)
Features:
* temperature unit ℃/℉ changeable
*data-hold function
*memory of MAX/MIN value of temperature
*Temperature Range: -50℃～+300℃ (-58℉～+572℉)
*Power-supply: 1.5V（AG13）x1
* size：2.5*1.5*23.9(14.5cm+9.4cm)
