Wireless signal detector. Mobile phone signal detector. RF wireless signal detector.

【FUNCTION】: A professional signal detector that can effectively detect signals from 100 to 400 MHz within a 32.8-inch radius, with 360-degree coverage and no blind spots, protecting your privacy. 【USE】: Easy-to-use button design; simply remove the antenna, press button A for long-range detection, and button B for short-range detection. The detector is suitable for all types of users. 【APPLICATION】: Wide detection range, excellent practicality, suitable for hotels, restaurants, public restrooms, changing rooms, business negotiations, contract signings, and locations where spy equipment may be present. 【Accuracy】: Extendable antenna: 16 cm, working range: 1 m, working voltage: 1.5 V. The signal detector responds quickly, is accurate and reliable, and supports long-term operation.