Jaltest (50004011) | Wear Sensor Tester (WST)
Warranty directly via AsTools
Warranty directly via AsTools
We handle warranty cases ourselves, quickly and without involving the manufacturer. Thanks to our own parts inventory and technical expertise, we can usually assist you immediately. Only in exceptional cases do we still send the product to the supplier.
2 years warranty on all products
2 years warranty on all products
All our products come with a 2-year factory warranty. This ensures you long-lasting quality and service.
Easy returns
Easy returns
You can easily request your return through your account. We will send you the return label by email. Return shipping costs are your responsibility.
Professional customer service
Professional customer service
Our experts are ready to help you quickly and professionally, both online and in our physical store. Questions? Feel free to contact us!
The Jaltest WST (part number 50004011) is the Wear Sensor Tester: A compact portable device that lets you check the operation and condition of brake pad wear sensors with ease. Cojali also supplies the OE reference K154433N50 from Knorr-Bremse for compatibility.
You disconnect the connector at the brake caliper, attach the matching Jaltest connector, use the rotary selector to choose the sensor type, and read the voltage in volts on the display. Compare that reading against the reference chart, and you'll know the wear percentage. This way you can test and adjust without removing components, allowing you to get the full life out of your brake pads.
KEY BENEFITS
IMPORTANT NOTES
Applications and Features
Which sensors the WST tests
- Continuous wear sensors: Cojali lists DAF, Iveco, Mercedes-Benz, Scania, MAN and Meritor.
- 2-wire sensors: The versions that only signal at the end of the wear cycle.
How to use it
- Disconnect the plug at the brake caliper: That's where you connect.
- Select the correct connector: The cable set includes connections for Renault, Volvo, Scania, Mercedes-Benz, Knorr-Bremse, DAF, EvoBus, Iveco, Hyundai, MAN and Wabco.
- Set the sensor type: Using the rotary switch on the device.
- Read the voltage and compare: The display shows volts; the reference table translates that to wear level.
- Follow the LEDs: Green means good, red means fault, orange means the battery is almost empty.
What you'll need
- The reference table for your sensor type: It comes with the device.
- Nothing else from Jaltest: The WST features its own display, independent power supply, and dedicated cable set.
What's included
- 1x Jaltest (50004011) | WST, Wear Sensor Tester
- 1x Cable set with brand-specific connectors
- 1x Carrying case
Technical specifications
| Specification | Description |
|---|---|
| Brand | Jaltest (Cojali) |
| Reference number | 50004011 |
| Official name | Jaltest WST (Wear Sensor Tester) |
| OE reference | K154433N50 Knorr-Bremse |
| Type | Sensor tester, standalone handheld device |
| Sensor types | Continuous wear sensors and 2-wire sensors |
| Display | Digital display in volts, comparable with reference table |
| Brands in cable set | Renault, Volvo, Scania, Mercedes-Benz, Knorr-Bremse, DAF, EvoBus, Iveco, Hyundai, MAN and Wabco |
| Dimensions | 144 x 66 x 40 mm |
| Weight | Approximately 193 grams; approximately 1,270 grams including carrying case |
| Operating temperature | -10 °C to 40 °C |
| Jaltest Link license required | No |
To ensure you always have access to the latest software updates and releases for your Jaltest device, it's important that you register the correct distributor.
Only the authorized distributor can perform new software installations and updates. When you designate us as your distributor, we can handle this for you and guarantee that your device stays current and runs smoothly.
How does it work?
-
Download and complete the change form
You can find the form as a PDF file here. -
Send us the completed form
You can easily do this by email to support@astools.eu. -
We'll take care of the rest
With the form, we can notify Jaltest of the change and officially register you as our customer.
