Good question, Application Scene:

1. Worry about installed wireless eavesdropper or tracking locator in the car or office.

2.Worry about electromagnetic radiation leakage in household appliances like microwave ovens;

3.Worry about installed candid devices to reveal personal privacy in hotels during travelling;

4.Conference room for business negotiation, government offices,School invigilator, military facilities;

5.Worry about suspicious wireless devices in the living environment;

6.Worry about wireless devices in gambling mahjong machine sending out signals.

Key points in the Use of the Product:

1. Make sure that the product has sufficient power before use;

2.Sensitivity knob: Clockwise turning to enhance and counterclockwise to decrease

3.When turning on the machine, rotate to the maximum until constant beep is heard. Then turn the counter clockwise, adjust until 2-3 LED of the signal intensity light are lit up, and then the machine enters the detection mode.

4.In the presence of signal jamming, the LED intensity of the signal will be unstable or flicker when starting. Then keep far away from the interference signal.

5.In normal detecting of the wireless signal, the closer the target signal is to the suspicious signal, the longer the length of the intensity indicator lights is, and the larger the alarm sounds.

6.The product is of high sensitivity, therefore, if you want to search the GPS tracker in the car in the urban living environment, where there are mobile phone base stations, TV broadcasting and other signals, please drive the car into the open area with weak signal and turn off the portable phone and other wireless devices before the detection.

7.In the case of an alarm in the room without presence of any suspicious target, please exclude the following possible causes: 1.Whether the portable communication equipment is closed or not; 2. Whether there are any suspicious target next door or someone making a call next door; 3. Whether the wireless router close to the indoor or next door is too close.

8.This detector is radio wave detection instrument, can’t detect the video and audio recording devices,such as the recording pen, family DV photograph, digital products, etc.Because these devices can’t transmit the radio signals.

Sorry that our detector has no function in regards to laser listening,while our detector can detect eavesdropping devices when they are transmitting signals out to someone else. Thank you for your question!

It absolutely can’t block any signal. It is illegal to block legitimate signals. Please forget it. Thank you for your question!

It is always beeping means that the sensitivity is highest level. The sensitivity could be adjusted by a sensitivity knob on the top of the detector. Pls switch counterclockwise to reduce sensitivity till you have 3-4 LED bars lighted on the front of the detector panel (total 10 LED bars for 10 levels of sensitivity). Then it is ready for bug sweeping. Just move around your room with the detector, when it alarms it means there is suspicious device nearby, if you can't make sure the location of the suspicious device , just switch counterclockwise of the knob to have 1 LED bar lighted, then sweep again in the suspicious area till it alarms again , and the bug device is in the place where the detector alarms

Good question, in a relatively noisy environment, the ability of the device will be challenged, maybe because it will be misreported by the surrounding environment, in hotel room, if you want to detect wireless device, make sure you turn off the wireless route and cell phone , adjust the detector until 2-3 LED of the signal intensity light are lit up, the machine enters the detection mode. In normal detecting of the wireless signal, the closer the target signal is to the suspicious signal, the longer the length of the intensity indicator lights is, and the larger the alarm sounds. then we can find Suspect target ,hope our answer can satisfy you, thanks!

Absolutely!