MakerHawk USB Power Meter UM25C USB Voltmeter Bluetooth Type C USB Tester Meter USB Voltage Meter and Current Tester 1.44inch 5A Color LCD Displaeter QC 2.0 3.0y Power Tester Multim

Technical Parameter:
Model :UM25C
Display screen: 1.44 Inch color LCD display
Voltage measurement range: 4-24.000V 
Voltage measurement resolution: 0.001V
Current measurement range: 0-5.0000A 
Current measurement resolution: 0.0001A
Capacity accumulation rannge: 0-99999mAh 
Voltage measurement accuracy: ±（0.5‰+2digits）
Energy sccumulation range: 0-99999mWh 
Current measurement accuracy: ±（1‰ +4 digits）
Load impedance range: 0.8Ω-9999.9Ω 
Time measurement range: 0-99h59min59s
Temperature range: -10℃～100℃/0℉～200℉ 
Temperature measurement error: ±3℃/±6℉
Screen brightness setting: 0-5 levels 
Auto screen off time: 0-9mins
Voltage graphing range: 0-24.00V 
Current graphing range: -5.0000A
Refresh rate:2Hz
Quick charge recognition mode: QC2.0、QC3.0、iPhone 2.4A/2.1A/ 1A/0.5A、Android DCP
Size: 71.2mmx30.5mmx12.4mm

Note: 
1.UM25C is conmmunication version by Bluetooth connection. 
2. PC software support PC window (Win 7 and above) and Phone Android (Android 5.0 and above, support 14 kinds language, chinese, english and Russia .... )
3, User manual, PC software installation instruction and PC software and Android APP download
link: http://www.mediafire.com/folder/q2b8h079hpywq/UM25
4, For Android APP : 
A: APP only support android 5.0 and above .
B: Allow APP to do in the background, not be cleaned.
C: allow APP self-starting.
D: Allow APP stay after screen locked, not be cleaned.
E: for desktop, when you use the bluetooth adapter to make bluetooth connection, Please don't use the adapter own driver, and use the windows system bluetooth driver, otherwise the module can't make SSP series port communication. If you have installed the adaptor driver, you can uninstall it and unplug the adaptor, then plug in again, the system will install it automatically.

USB Load Module Feature:
Work Voltage Current: 5V, 1A/2A
Power: 10W-20W