Remote control testers are designed to assist in diagnosing infrared and radio frequency remote controls. This device can be used with most makes and models of vehicles, including trucks, as well as remote control toys and home appliances. Simply place the remote under the LCD display screen and press a button on the remote to send a signal to the tester. The digital frequency will then be displayed on the LCD screen. Powered by a 9V battery with a current consumption of 50mA, it features a frequency range of 10-1000MHz. The unit is black in color and constructed from plastic. Package Contents: 1 x Frequency Tester Note: Other items shown in images are not included. Due to lighting effects and differences in display settings, the color of the item may vary slightly from the images. Measurement tolerances may vary by +/- 1-3cm.