Specification: Item Type: Frequency Tester Material: ABS Application: The remote key infrared frequency tester is an instrument for testing the frequency of the wireless remote control. It can test the frequency of the remote control and display it clearly; it can also test the quality of the infrared induction; It is convenient to adjust the frequency you need. Test Frequency Range: 100M HZ - 1G HZ Working Conditions: -10 ℃ - 40 ℃ Working Relative Humidity: ≤ 80% Storage Conditions: -20 ℃ - 50 ℃ Storage Relative Humidity: ≤ 85% Battery Model: 6F22 9V (Not included Battery) Application: Applicable to all models of keys and electric door controllers, car burglar alarms and other remote controls, electric locks, garage doors, remote controls, access control, etc. packing list: 1 x Frequency Tester 1 x Manual Notice: 1. The product can only measure infrared, and the frequency of the machine in the test range of frequencies. 2. The use of equipment must be installed with sufficiently charged batteries, and the test must be affixed to the product test area to measure the frequency of the machine, otherwise it is easy to lead to the measurement of the frequency is not accurate. 3. The normal testing error of the product is about +-2%.