Draper Expert Vehicle Key Fob Tester

Quickly identify faulty key fobs and remote controls with the Draper Expert KFT Vehicle Key Fob Tester. Designed for automotive technicians and diagnostics professionals, this compact tester detects both radio frequency (RF) and infrared (IR) signals emitted by vehicle key fobs and remote controls — helping you pinpoint whether the fault lies with the emitter before any further investigation.

Operating across the standard 418MHz to 434MHz frequency range used by the vast majority of modern vehicle key fobs, the KFT gives you a fast, straightforward method of confirming whether a remote is transmitting a signal at all. This eliminates guesswork when diagnosing central locking issues, alarm faults, or unresponsive remotes — saving time and avoiding unnecessary parts replacement.

Compact and easy to use, the tester requires a single 9V battery (not supplied) and is ready to use straight out of the box.

Key Features:

• Detects both radio frequency (RF) and infrared (IR) signals from key fobs and remote controls
• Operates across the standard 418MHz to 434MHz frequency range
• Quickly diagnoses potential faults with key fob and remote emitters
• Compact and straightforward to use — no complex setup required
• Requires one 9V battery (not supplied)

Specifications:

Why Use a Dedicated Key Fob Tester?

When a vehicle remote stops working, the fault could lie anywhere — from a flat battery in the fob to a failed emitter, a faulty receiver in the vehicle, or a programming issue. The Draper KFT lets you rule out emitter failure immediately by confirming whether the key fob is transmitting a signal. This simple first step can save significant diagnostic time and prevent the cost of replacing components that are working perfectly.

Compatible with Most Modern Vehicle Key Fobs

The 418MHz to 434MHz operating range covers the frequencies used by the overwhelming majority of European and UK-market vehicles, including cars, vans, and light commercial vehicles. Whether you're diagnosing a central locking fault, an unresponsive alarm remote, or a suspected dead fob, the KFT is an essential first-line diagnostic tool for any automotive workshop.

FAQ Section:

What does the Draper KFT key fob tester detect? The KFT detects both radio frequency (RF) and infrared (IR) signals transmitted by vehicle key fobs and remote controls, helping you identify whether the emitter is functioning correctly.

What frequency range does the Draper KFT operate across? The tester operates between 418MHz and 434MHz, covering the standard frequencies used by the majority of modern vehicle key fobs and remote controls.

What battery does the Draper KFT require? The KFT requires a single 9V battery, which is not included. A standard PP3-type 9V battery is compatible.

Can I use the Draper KFT to test non-vehicle remotes? While designed for vehicle key fobs, the KFT can detect RF and IR signals from any remote control operating within the 418–434MHz range, making it useful for a broader range of diagnostics.