Features 1、Wide Detection Range: Signal detector using high sensitivity RF detection chip, measuring the frequency range of 10Mhz to 4Ghz, covering from shortwave, FM, walkie talkie, GPS to wifi, 2G,3G, 4G,5G cell phones and other frequency band electromagnetic wave signal. 2、High Sensitivity Vibration Sensor: Concealed devices detector can detect and alarm the slight vibration, the detector vibration alarm function is turned on and placed on top of the room door handle, once the detector detects the vibration of the door, the built in buzzer will sound a high decibel alarm tone to indicate. 3、High Configuration: Detector built in high brightness LED light beads and high capacity polymer lithium ion battery, can continue to provide up to 6 hours of lighting, light brightness comparable to the phone comes with a flashlight. 4、Wide Application Range: Signal detector uses to detect 1.2G, 2.4G analog cameras with wireless transmission, wifi cameras, GPS locators, wiretaps and other devices emitting electromagnetic wave signals. 5、Excellent Security Performance: DS618 is a multifunctional signal detector with high detection sensitivity and long detection distance, which can quickly and effectively find concealed miniature cameras, locators, wiretaps and other devices to effectively prevent others from monitoring. Specification Item Type: Signal Detector Model: DS618 Material: ABS Signal Detection Range: 10MHz to 4GHz Five Functions: Magnetic field detection, electromagnetic wave detection, flashlight illumination, camera detection, vibration detection Power Supply: Built in lithium battery 4.2V 450mah (shipped with built in battery) Package List 1 x Signal Detector 1 x USB Cable 1 x Instruction Manual