Features: Remote Control Tester has been developed to assist with the diagnosis of all types of (IR) Infra Red and (RF) Radio Frequency remote controls. This device can be used on most makes and models of vehicles including trucks, remote control models and domestic appliances. Frequency Range: 10Mhz to 1000Mhz. Simply place the remote control below the LCD screen and press a button on your remote for key fob. A signal will be sent to the Remote Control Tester and a numeric frequency will be displayed on the LCD screen. Specifications: Material: ABS Size: 11x7cm/4.33x2.75in Frequency Range: 10Mhz to 1000Mhz. Note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1X Remote Control Tester