Features: The Wireless Control Detector Reader is a versatile tool for anyone dealing with remote control devices. It accurately measures frequencies from 250MHZ to 450MHZ, helping you ensures the signal quality of your garage door remote control or entrance guard. This Digital Frequency Counter is easy to use and provides clear results. Its portable size makes it convenient to carry around, making it perfect for car enthusiasts, property management personnel, and anyone who needs to check the working their remote controls. This frequency tester caters to a wide of users, including car owners and maintenance personnel. It is also For property management companies dealing with security systems. Whether you're testing the signal strength of your garage door or diagnosing issues with your vehicle's remote control, this frequency counter is an essential tool. It ensures smooth operate of your devices and helps identify signal stability problems. Charge of your remote devices confidently with the Wireless Control Detector Reader. Its accuracy and wide application make it tool for detecting signals from various sources. Specifications: Material: Plastic Working Voltage: DC7.5-12V Wokring Current: 50mA Measuring: 250MHZ-450MHZ Size: About. 92x58x25mm/3.62x2.28x0.98in Package Includes: 1pc Remote Control Detector note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color.