RD UM24 UM24C APP USB 2.0 LCD Display Voltmeter ammeter battery charge voltage current meter

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 aculation range:0-99999mAh

Voltage measurement accuracy:±（0.2％+1 digit）

Energy aculation range:0-99999mWh

Current measurement accuracy:±（0.8％ +3digits）

Load impedance range:1.5Ω-9999.9Ω

Time measurement range:0-99h59min59

Temperature range:-10℃～100℃/0℉～200℉

Temperature measurement error:±3℃/±6℉

Screen brightne setting:0-5 level

Auto screen off time:0-9min

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

1,Instruction: User manual, PC software installation instruction and PC software and Android APP download link: 1.http://www.mediafire.com/folder/0jt6xx2cyn7jt/UM24 2.https://drive.google.com/drive/folders/1SrucdPHVXJE-fxOhsGJz-qxUFjDnd3?usp=sharing 2,APP Download: Android APP: search "RuiDeng" in google play

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 hone

SOFTWARE QUESTIONS:

1. Q: what is the software crash problem?

①There may be  incompatibilities probl of the PC software with some Windows syst, if you really need it, please install and test the software before buying the product. ②There are many types of mobile phones and operation syst, so there may be incompatibilities, if you need APP, please install and test the APP before buying the product. ③If you don't test the PC software and APP function before buying and find that the products works fine except the PC software or APP, we refuse to . ④Please do install and test the APP if you use Samsung mobile phone.

UM24（C)

UM25（C）

UM34（C）

Picture

USB port

USB2.0

USB3.0

Expansion port

MICRO USB

MICRO USB TYPE-C IN TYPE-C OUT

MICRO USB TYPE-C IN

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％+3digit

±（1‰ +4digits）

±（0.8％+3digits）

Capacity aculation range

0-99999mAh

Energy aculation 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 brightne setting

Levels 0-5

Delay off the screen time

0-9minute

Supported fast charge protocol

QC2.0、QC3.0、FCP、AFC、PD2.0

QC2.0、QC3.0、FCP、AFC、PD2.0 Huawei SCP Huawei40W quick charge OPPO VOOC SuperVOOC flash charge OnePlus DASH quick charge

QC2.0、QC3.0、FCP、AFC、PD2.0 OPPO VOOC flash charge OnePlus DASH quick charge

Identifiable fast charge protocol

QC2.0、QC3.0

QC2.0/QC3.0 2.4A/2.1A/1A/0.5A Android DCP SAMSUNG

Special function

NO

One on to close screen, voltage current 2in1 graph. free to set them color, Bluetooth switch, Previous page

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

Preing any on whilst powering on the module will display several option

1.selects the Chinese Interface 2.selects the English interface. 3.zero the Current reading

1. selects the Chinese Interface 2. selects the English interface. 3.reset the system setting

1.selects the Chinese Interface 2.selects the English interface. 3.reset the system setting 4.zero the Current reading

APP

Support IOS8.0 or above(device must over hone 6)

/ Android5.0 or above(UM24C doesn't support IOS APP)

PC Software

Support WIN7 or above

NO

About shping
Shping and Packaging All it will be double checked and well packed before sending.It will be dispatched within 2 business days after buyers pay for the order. It usually takes about 14 to 18 working days for delivering the package to the destination(for e areas,it may take a little longer). 

Special Announcement:
Please fill in the correct and detailed consignee, address and phone number in the order. For fast and correct delivery.If you do not receive order within 30 working days,please feel free to contact Customer Service before leaving Negative and Neutral Feedback, we will do our best to help you resoe the problem.TaxNo, you will only pay what is quoted as total cost at checkout, no more. You are not expected to pay any additional duties or taxes. If you are asked by Customs or our logistic partner to pay duties, please contact our Customer Service .

Your 100% satisfaction is very ant to us
If the product is not on good condition, You can return this product within 14 working days, please contact customer service center before returning.FeedbackYour satisfaction is our first priorityIf you receive the order and it is in good condition,we would be grateful if you would leave us 5 star Positive Feedback for the transaction.