Product features:

1 compact, easy to carry;

2 little electric power consumption, energy saving and environmental protection

3 key measurement, simple operation

4 early prevention, measurement precision

5 continuous measurement at any time, early warning

6 professional analysis, data storage

7 with Bluetooth function, can upload the measured data to the intelligent terminal (mobile phone, tablet computer, etc.).

8 with serial port, can be connected with the Bluetooth transmission equipment, upload the measured data to the intelligent terminal.

The difference: the function is similar products in the market at present, no Bluetooth or the serial port function.