Handy Smart YANTEK YD308 Auto Electrical Tester

Features and functions:

To test voltage and output
To test and show the radio wave
To measure resistance
To judge the diode polarity
To provide 3 modes for power supply
To test 0-5 volt common voltage output
To detect the relay
To display the frequency digitally
To help check the positive and negative of the battery/line

2.Detect 12-24v voltage and output as the power supply

3. Test resistance, with algorithm optimization , shielding interference and high precision




4. Detect the diode polarity when the car’s ECU is under maintenance
Help to troubleshoot the electronic parts (not available in similar products in the market)


5. There are two modes to display the frequency, in ware or digit, suitable for two different sensor signal detection environments.
Some are focused on waveform changes, and some on precise frequency values.

6. There are 3 modes to supply power in convenience of different situations, to test the current (not available in similar products in the market)





Three modes:
Mode 1 (conventional): press to supply power and release to power off
Mode 2: press once to power on and not power off until you press it again (convenient for a long distance from the power supply and the working device)
Mode 3: press once for intermittently supply power (convenient for checking the bulb type flickering effect and it is possible to detect the current at the same time)

7.It can support the maximum current 18A and set the trip current (2-18A optional threshold) for various circuit environments.
8.Optional small voltage output 0-5V is easy to use when repairing ECU electronics and detecting automotive oxygen sensors (not available in similar products in the market)
Optional voltage output available: 0-5V available and 0.5V interval each time


9. The relay test function is intuitive and convenient, just connect the line according to the diagram color; that is, you can directly test the working condition of the relay.
It is very convenient(not available in similar products in the market)

Package includes:

1pc x User's Manual
1pc x Cigarette lighter adapter
1pc x Battery hookup clips
1pc x Probe tip
1pc x 20ft.extension cable
1pc x Carry case

Shenzhen MS Auto Technology Limited is a professional manufacturer of auto diagnostic tools, specialized in researching & developing diagnostic devices for , Mercedes Benz, Ford, GM, Toyota, Honda, Renault etc. Meanwhile, we are an authorized agency for some famous companies, like Launch X431 ,Autel and  Autoboss.

As one of the top manufacturers in China, with our dedicated engineers, we are able to provide customers with high-tech products, technical support and after-sales service. Our products are sold to all over the world, including factories, distributors, agents, garages, shops and individuals. We still provide OEM and ODM service for our customers.

We have over seven years of experience in manufacturing and exporting these products from China to various overseas markets and we also cooperate with satisfied buyers in the US, Europe, South Africa, Southeast Asia and the Middle East. Relying on advanced instruments, perfect quality control system, highly experienced management staff and senior engineering personnel, we are able to satisfy customers' changing demands effectively.

Our company persists in the good service. "Quality, professionalism and innovation" is the belief of our enterprise. By listening to our customers' suggestions and needs, our marketing personnel are able to fulfill all requirements that they receive.

Providing best products and best service is our company target. Contact us today by email or phone and start with a small order, you will find we are your most valuable cooperator.