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Compact Power for Mobile Diagnostics
The CRI120 is a highly portable and efficient high-pressure common rail injector tester designed to simulate the Engine Control Unit (ECU) driving signals. Despite its compact size, it is powerful enough to drive both Magnetic (Solenoid) and Piezoelectric injectors.
Core Functionality:
The device provides control signals to test the working conditions of injectors from major brands like Bosch, Denso, Delphi, Caterpillar (CAT), and Piezo. Users can easily adjust the drive parameters to simulate various engine conditions, such as:
VL: Full Load
TL: Torque Point (Emission point)
LL: Low Load (Idling)
VE: Pre-injection
The intuitive interface features an LCD screen and a simple ADJ Knob for navigation and parameter modification, making it perfect for quick diagnostics.
Application Scenarios:
Roadside Assistance: Quickly diagnosing injector failures on broken-down trucks or cars directly on-site.
Small Workshops: A cost-effective solution for garages that need basic common rail testing capabilities without buying large test benches.
Quick Sorting: Rapidly testing used injectors to separate good ones from bad ones before sending them for full refurbishment.
FAQ (Frequently Asked Questions)
Q1: Can the CRI120 test Piezo injectors?
A: Yes, the CRI120 fully supports Piezoelectric injectors as well as standard electromagnetic (solenoid) injectors.
Q2: How do I adjust the settings?
A: Operation is very simple. Rotate the "ADJ" knob to change values (like frequency or pulse width) and press the "ADJ" knob down to move the cursor between different parameters.
Q3: What power supply does it need?
A: The device uses a 24V power input. (Note: It usually comes with a power adapter, please check the packing list).
Q4: Does it have protection features?
A: Yes, it includes overcurrent and short-circuit protection. If the injector is shorted, the device will stop outputting to prevent damage.
Mini & Portable: Its compact design makes it easy to carry, ideal for mobile mechanics or workshops with limited space.
Dual Compatibility: One device tests both Electromagnetic and Piezo injectors, offering great value.
Safety Protection: Equipped with built-in Overcurrent and Short Circuit Protection to ensure the safety of the tester and the injector during operation.
Precise Control:
Frequency: Adjustable from 1 to 30Hz.
Pulse Width: Adjustable from 0 to 6000us.
User-Friendly: Simple "One Knob" operation (Rotate to adjust, Press to select) simplifies the testing process.
Safe Power Input: Operates on 24V power, ensuring electrical safety.
| Model | CRI120 |
| Injector Types | Magnetic (Solenoid) & Piezoelectric |
| Supported Brands | BOSCH, DENSO, DELPHI, CAT, PIEZO |
| Frequency Range | 1 ~ 30 Hz |
| Pulse Width Range | 0 ~ 6000 us |
| Test Points | VL, TL, LL, VE |
| Control Method | ADJ Knob + ON/OFF Button |
| Power Input | DC 24V |
| Protection | Overcurrent & Short Circuit Protection |
| Warranty | 1 Year |



