Detection distance: 0.1-8M Detection Frequency: 1MHZ~6.5GHz Minimum illumination: 1LUX Battery and parameters: 400mah polymer ion rechargeable battery Material: ABS engineering plastic Operating Temperature: -10°C~45°C Detection sensitivity: s003mv(@900Mhz) Package Size: 135mm*70mm*35mm Package Weight: 60g Camera Detection Short press the Mode Button to switch to the red LED light, the signal strength button can adjust the LED light flashing frequency, please try to detect in a dark environment. Eyes through a special filter to observe the suspicious reflective point, and then close to confirm whether the suspicious device is a camera . RF Detection After power on the default RF detection mode, short press the Mode Button until the blue light is on can also be switched to RF detection mode. Then handheld device slowly scan the suspicious area, it is recommended to open the 5-level signal strength search, and then slowly turn down the signal strength to confirm the location of the signal source after the RF signal is detected. Magnetic Detection After power on, short press the Mode Button to switch to the green light on for Magnetic field signal detection. Then handheld device slowly scan the suspicious area, it is recommended to open the 5-level signal strength search, and then slowly turn down the signal strength to confirm the location of the signal source after the magnetic signal is detected. Charge Port Type-C Work Time About 25 hours Antenna Gain -56db Voltage DC 5V/1A Battery 3.7V/400mA Lithium polymer battery Sensitivity 5 Levels Receiving Frequency Range 1MHz - -6.5GHz Signal Detection Range 2 inches - 26 feet (Depend on sensitivity)