This product is a device designed to test the frequency of wireless remote controls, displaying the results clearly on a digital screen. It can also evaluate the performance of infrared sensing and allows users to adjust frequencies during remote control setup.Features: - Premium Material: The housing is made of durable plastic, resistant to drops and wear, offering reliable longevity. - Digital Display: 4-digit digital display for radio frequency measurement, allowing clear reading of test results. - LED Light Design: Built-in LED illumination for improved visibility in low-light conditions. - Indicator Light: Features an infrared input indicator; a red light indicates proper infrared signal emission from the remote control. If the light is off, it may indicate a malfunction or failure in the infrared emitter. - 9V Battery Power Supply: Operates on a single 9V battery (not included), providing extended usage time. - Wide Applications: Suitable for testing remote control frequencies, assessing infrared sensor functionality, and adjusting desired frequencies during configuration.Specifications: - Name: Infrared Frequency Tester - Color: Black - Material: Plastic - Battery: 1 x 9V battery (not included) - Test Range: 100 MHz - 1 GHz - Operating Temperature: -10C to 40C - Relative Humidity: Less than 80% - Storage Temperature: -20C to 50C - Relative Humidity: Less than 85% - Item Size: 150 x 75 x 30mm / 5.91 x 2.95 x 1.18in - Item Weight: 205g / 7.23oz Package Contents: 1 x Infrared Frequency Tester Note: Other items not included. Note: Lighting effects and display settings may cause slight color variations between the product image and actual item. Measurement error allowance: +/- 1-3cm.