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RD UM24 UM24C APP USB 2.0 LCD Display Voltmeter ammeter battery charge voltage current meter multimeter cable measure Tester
RD UM24 UM24C APP USB 2.0 LCD Display Voltmeter ammeter battery charge voltage current meter multimeter cable measure Tester
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SPECIFICATIONS
Brand Name: RD
DIY Supplies: ELECTRICAL
Origin: Mainland China
Dimensions: 71.2mmx31.8mmx12.4mm
Operating Temperature: -10 degrees~65 degrees
Accuracy Class: No
Display Type: Digital Only
Power Supply: DC
Certification: CE
Certification: FCC
Model Number: UM24/UM24C
Voltage measurement range: 4.50-24.00V
Current measurement range: 0.000-3.000A
Voltage measurement resolution: 0.01V
Current measurement resolution: 0.001A
Product weight: 20.75g
Time measurement range: 0-99h59min59s
Screen brightness setting: 0-5 level
Delay closing screen time: 1-9 mins
Display screen: 1.44 Inch color LCD display
Update rate: 2Hz
Product Model:UM24/UM24C
Display screen:1.44 Inch color LCD display
Voltage measurement range:4.5-24.00V
Voltage measurement resolution:0.01V
Current measurement range:0-3.000A
Current measurement resolution:0.001A
Capacity accumulation range:0-99999mAh
Voltage measurement accuracy:±（0.2％+1 digit）
Energy accumulation range:0-99999mWh
Current measurement accuracy:±（0.8％ +3digits）
Load impedance range:1.5Ω-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:4.5-24.00V
Current graphing range:0-3.000A
Product size:71.2mmx31.8mmx12.4mm(UM24C) /71.2mmx31.8mmx11.3mm(UM24)
Quick charge recognition mode:QC2.0、QC3.0
UM24（C) |
UM25（C） |
UM34（C） |
|
Picture |
|
|
|
USB port |
USB2.0 |
USB3.0 |
|
Expansion port |
MICRO USB |
MICRO USB |
MICRO USB |
Voltage measurement range |
4.5-24.00V |
4-24.000V |
4-24.00V |
Voltage measurement resolution |
0.01V |
0.001V |
0.01V |
Voltage measurement accuracy |
±（0.2％+1digit） |
±（0.5‰+2digits） |
±（0.2％+1digit） |
Current measurement range |
0-3.000A |
0-5.0000A |
0-4.000A |
Current measurement resolution |
0.001A |
0.0001A |
0.001A |
Current measurement accuracy |
±（0.8％+3digits |
±（1‰ +4digits） |
±（0.8％+3digits） |
Capacity accumulation range |
0-99999mAh |
||
Energy accumulation range |
0-99999mWh |
||
Load impedance range |
1.5Ω-9999.9Ω |
0.8Ω-9999.9Ω |
|
Temperature range |
-10℃~100℃/0℉~200℉ |
||
Temperature measurement error |
± 3℃/ ± 6℉ |
||
Screen brightness setting |
Levels 0-5 |
||
Delay off the screen time |
0-9minutes |
||
Supported fast charge protocol |
QC2.0、QC3.0、FCP、AFC、PD2.0 |
QC2.0、QC3.0、FCP、AFC、PD2.0 |
QC2.0、QC3.0、FCP、AFC、PD2.0 |
Identifiable fast charge protocol |
QC2.0、QC3.0 |
QC2.0/QC3.0 |
|
Special function |
NO |
One button to close screen, voltage current 2in1 graph. |
|
Interface difference |
NO Previous page |
UM25 can check Previous page and has Icon with rotation direction,help prompt, and screen off at the top of the interface |
|
Hardware difference |
No Bluetooth switch |
Bluetooth switch |
|
Pressing any button whilst powering on the module will display several options |
1.selects the Chinese Interface |
1. selects the Chinese Interface |
1.selects the Chinese Interface |
APP |
Support IOS8.0 or above(device must over iPhone 6) / Android5.0 or above(UM24C doesn't support IOS APP) |
||
PC Software |
Support WIN7 or above |
NO |
|
1,Phone requirement
For Android APP :
A: APP only support android 8.0 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.
2, Video
APP test and other function introduction : https://youtu.be/8uaKiSw0774
Cable resistance measurement video : https://www.youtube.com/watch?v=-kNJVNPbGvc; https://youtu.be/nIZSb0DJExc
3,Electronic USB Load
For electronic USB load, we have HD series and LD series 25W 35W load, you can choose by yourself, HD series has trigger mode, LD series only normal mode
PRODUCT QUESTIONS：
1. Q:What is the differences between UM24 and UM24C?
A: UM24 is no communication version, UM24C is conmmunication version by Bluetooth connection, do not support iPhone
SOFTWARE QUESTIONS:
1. Q: what is the software crash problem?
