Features: 
1.The probe has elasticity, one handed operation, and is fast and efficient
2.Type-c/micro-b ports are optional, requiring no external power supply, low power consumption, and long-lasting durability
3.With power indicator light, the optocoupler test board light flashes and the components are normal
4.The fifth and sixth generations have added plug-in test pads and patch test pads
5.Wide range of applications: Compatible with most 4-pin optocouplers for online testing, including 817, 781, 521, and other plug-in patches

Parameters:
Product name: optocoupler tester
Input interface: micro-b/type-c (optional)
Type: third generation (micro-b single signal light)/fourth generation (type-c dual signal light)/fifth generation (type-c dual signal light upgrade patch test plug-in test)/sixth generation (type-c dual signal light upgrade patch test plug-in test with switch, lithium battery, led lighting probe detachable)
Applicable test object: compatible with most 4-pin optocouplers for online testing. Plug in patches such as 817, 781, 521 can be used

Usage method
1.During testing, confirm that the tested board has been powered off and the large capacitors on the motherboard have been discharged. It is strictly prohibited to test while the motherboard is powered on
2.Confirm that the first pin of the optocoupler (with a small circular dot) is also labeled with the corresponding first pin on the test board
3.Connect the optocoupler test board to the usb power cord, and the probe of the test board contacts the optocoupler to be tested. If the indicator light on the optocoupler test board keeps flashing, it indicates that the optocoupler is normal
4.Suitable for 4-pin optocouplers, not applicable to other types of optocouplers

Package include:
Optocoupler tester*1