OWON 3 3/4 Digital Multimeter With Bluetooth

Features

• function as 3 in 1 : datalogger + multimeter + temperature meter
• multi-connection (more than one device) supported via mobile app
• the change trend analysis accessible via special chart mode
• voice warning supported, which assures measurement safety
• smart voice-reading accessible
• 3(3/4)-digit counterparts
• smart power-off option extending battery life
• Bluetooth 4.0 version - supports mobile device with Android 4.3 or above / iOS 7.0 or above OS, and equipped with ble 4.0 module

https://drive.google.com/file/d/1Ngvc9G0W9aN308qqIk6z-u13mbPgju_B/view?usp=sharing