Sealey VS921 Key Fob Tester

The Sealey VS921 Key Fob Tester is a diagnostic tool designed for quickly testing vehicle key fobs and remote controls without dismantling. This compact tester detects both radio frequency and infrared emissions, helping automotive technicians and vehicle locksmiths diagnose faults efficiently and save valuable workshop time. Ideal for garages, mobile mechanics and automotive electricians, this key fob tester covers multiple RF ranges including 418MHz, 433-434MHz and 868MHz, making it suitable for a wide variety of vehicle manufacturers. The device specifically detects newer BMW frequencies, ensuring compatibility with modern vehicle systems. The lightweight tester features a magnetic backing that sticks to any ferrous surface, allowing hands-free operation when testing transmitter range. This practical design means you can position the tester on the vehicle bodywork whilst checking the key fob's signal strength and functionality. Powered by a standard 9V battery (not included), the VS921 weighs just 0.09kg, making it easy to carry in a toolbox or diagnostic kit.