In stoc tester pentru verificare injectoare.
Original Allsun EM276 Automotive Injector Tester EM276 Fuel Injector System Tester 4 Pluse Modes Tester Powerful Fuel System Scan Tool Universal 

EM276 Item Feature:
This tester can diagnose injector problems, you can use it on each injector
individually to test stuck, leaking or burnt-out.
It used 12V vehicle battery as power supply.
It has 4 pulse modes and in the continuous working mode ( mode 4 ), it can help
you identify the injector good or not when you switch off the engine.
The lock mode can ensure the testing condition is same.
It can work with any fuel pressure tester together.
 

EM276 Operation Instructions:
Turn off the vehicle‘s engine 
Connect Black / Red Clip to the Negative / Positive terminal of battery  
Connect pulse output terminal to the fuel injector
Press the "MODE SET" key to select the desired pulse mode
Press the "PULSE" key, the tester will output pulse to the injector, and then the pulse signal
indicator will light as indication  

 

Explanations for 4 modes:

Mode 1:  the tester outputs 1 pulse, whose pulse width is about 250ms
Mode 2:  the tester outputs 50 pulse, every pulse's pulse width is about 7ms
Mode 3:  the tester outputs 100 pulse, every pulse's pulse width is about 3.5ms
Mode 4:  the tester outputs pulse continuously at the rate of 50 pulses per about 1450ms
every pulse's pulse width is about 7ms

EM276 specification:
Power Supply: 12V vehicle battery(Not including battery)

Operation Environment: 0 C - 40C, relative humidity 80%

Storage Environment: -10 C - 50C, relative humidity 85%

Size: 147x82x29mm (for main body only)

Weight: about 390g