This product is a testing instrument designed to measure the frequency of wireless remote controls, providing clear display of the results. It can also test the performance of infrared sensing and allows for frequency adjustment when configuring remote controls. Features: - Premium Material: The housing is made of durable plastic, offering shock resistance, wear resistance, and long-lasting durability. - Digital Display: 4-digit digital display for radio frequency readings, enabling clear and accurate measurement. - LED Light Design: Built-in LED illumination for improved visibility in low-light environments. - Indicator Light: Infrared input indicator included; a red light indicates normal infrared signal output from the remote control. If the light does not illuminate, it may indicate a fault in the infrared emitter. - 9V Battery Powered: Operates on a 9V battery (not included), providing reliable power for extended use. - Wide Applications: Suitable for testing remote control frequencies, evaluating infrared sensor performance, and adjusting frequencies during remote configuration. Specifications: - Name: Infrared Frequency Tester - Color: Black - Material: Plastic - Battery: 1 x 9V battery (not included) - Test Range: 100 MHz - 1 GHz - Operating Conditions: -10°C to 40°C, Humidity < 80% - Storage Conditions: -20°C to 50°C, Humidity < 85% - Item Size: 150 x 75 x 30 mm / 5.91 x 2.95 x 1.18 in - Item Weight: 205 g / 7.23 oz Package Contents: 1 x Infrared Frequency Tester Note: Light reflection and differences in display screens may cause slight variations between the color of the item in images and the actual product. Measurement error is +/- 1-3 cm.