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Compact black ABS handheld scanner with large LCD screen and detachable cable

JinTaoRui

JinTaoRui FOS-S Fault Finder pc tool

SKU CH-544B-NASVB

An automotive fault detector reads and clears trouble codes, displays live data and I/M readiness, and supports nine OBD-II protocols through a plug-and-play ABS handset with a large LCD

  • VariantFault Finder, FOS-S
  • Reads and clears codes via nine OBD-II protocols
  • Live data stream and freeze-frame view on large LCD
  • Plug-and-play power from detachable cable, no batteries
  • Compact 96 * 72 * 22 mm ABS body fits in palm
  • Works from -30 °C to 70 °C operating range

Handheld OBD-II fault finder for vehicle diagnostics

The JinTaoRui FOS-S connects directly to a 16-pin OBD-II port and draws power from the vehicle’s 9-16V system. It reads and clears trouble codes, streams live data, and shows I/M readiness status on its built-in LCD. No software installation or batteries are required for operation.

Covers nine SAE and ISO protocols up to 500 Kbaud

Supported standards include SAE J1850 PWM at 41.6K baud, SAE J1850 VPW at 10.4K baud, ISO 9141-2, ISO 14230-4 KWP with both 5-baud and fast initialisation, and ISO 15765-4 CAN with 11-bit and 29-bit identifiers at 250 Kbaud and 500 Kbaud. Vehicles using other bus types or higher-speed networks will not communicate with this tool.

Plug-and-play operation with no host device needed

The unit functions as a standalone scanner; there is no Bluetooth, Wi-Fi, USB or app connection. Buyers who need wireless data logging, graphing on a phone, or integration with a laptop should choose a different interface.

How it compares

Measured against everything we stock in PC Repair Tools & Testers, at today’s prices. Recalculated every night.

Price $24.99
Cheaper than about 69% of the 160 comparable items (median $51.49).

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Specifications

In the box
Pack quantityNo
More details
VariantFault Finder, FOS-S

Questions about this item

Which option should I choose for the fault finder?

The product is offered as a single Fault Finder option labelled FOS-S with no alternate versions or capacities to select.

What does the 500 Kbaud CAN rate mean when the tool is connected to a vehicle?

It is the highest communication speed supported on the ISO 15765-4 CAN protocols, allowing faster live data streaming and code reading on compatible systems.

Which diagnostic protocols does the interface support and what do they limit in practice?

It covers SAE J1850 PWM and VPW, ISO 9141-2, ISO 14230-4 KWP with both initialisation methods, and ISO 15765-4 CAN at 11- and 29-bit IDs with 500 Kbaud and 250 Kbaud rates, defining the vehicle networks it can communicate with.

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