PDF Bluetooth Temperature Data Logger with external sensor

Protocol Standard: Bluetooth 4.1 Free IOS and Android app.
Operating Life: 1.5 years
Long distance wireless transfer.
Built-in highly sensitive temperature sensor.
Real-time display temperature.
It can store 12000 pieces of temperature data.
PDF report can be sent to specified mailbox.
LED light indicates the working status.
Can choose time to query data, every time query of data, the stored data can be saved in history.
Can set normal storage temperature data interval and alarm storage temperature and humidity data interval.