Welcome to our store! 1. Accurate and Reliable: The tester allows for accurate and reliable frequency testing and infrared signal detection of remote control devices. It helps users identify any issues or malfunctions with remote controls. 2. Detection Range: The effective test range for this infrared frequency tester is within 5 cm; the closer to the test zone, the more accurate the measurement. The frequency of car keys is generally divided into 320MHz; 434MHz; 868MHz. 3. Easy to Use: Simply place the remote control near the tester in the test zone, press the power button on the remote control, and the tester will display the frequency value and measure the frequency accurately. 4. INPUT Indicator: By pressing any button on the remote control, the indicator light will flash red, indicating that the infrared output is working correctly. If the indicator light does not illuminate, it indicates that there may be a fault or damage to the infrared transmitter. 5. Convenient Lighting: The infrared frequency tester is equipped with LED lights on the front, making it easier to use in low-light conditions, ensuring visibility and accuracy during testing. 6. Application: Applicable to all models of keys and electric door controllers, car anti-theft alarms, and other remote controls, electric locks, garage doors, remote controls, access control, etc. Item Type: Frequency Tester Material: ABS Application: The infrared frequency tester for remote keys is an instrument for testing the frequency of wireless remote control. It can test the frequency of the remote control and display it clearly; it can also test the quality of infrared induction; it is convenient to adjust the frequency you need. Test Frequency Range: 100MHz - 1GHz Working Conditions: -10℃ - 40℃ Working Relative Humidity: ≤ 80% Storage Conditions: -20℃ - 50℃ Storage Relative Humidity: ≤ 85% Battery Model: 6F22 9V (battery not included) Application: Applicable to all models of keys and electric door controllers, car anti-theft alarms, and other remote controls, electric locks, garage doors, remote controls, access control, etc. 1 x Frequency Tester 1 x Manual Customers are our top priority. If you encounter any problems with your product after receiving it, such as damage or incorrect quantity, please contact us immediately. We strive to provide you with the best after-sales service.