EST-101A cellphone signal detector +alarming system 1.detector frequency: CDMA, GSM, DCS, PHS & 3G. 2.detector range: 20M                               EST-101A cellphone signal detector +alarming systemTechnical parametersEach frequency band has a corresponding antenna, so there are 4 antennas on the equipment.Jamming range of the signal detector : 5-20M (It still depends on the strength signal in given area)The green light on means the main system work well, the red light on shows that the RF inspecting system works well.When the detector is working, the TTL signal and RS-485 communication signal are output by the system.Sentivity of the signal detector : Adjusted knobs, independent frequency.Caboodle Management : coding orientationTemperature : -40°C~ 55°CReceiving Antenna : Plastic antennasWorking Voltage : Input AC 110V ~ 240V  50/60 Hz                             Output DC 5V  2ADimension : 230*85*30mmWorking Time : It can work stably for a long timeEnvironment Temperature : -20°C ~ 65°CRelative humility : 30% ~ 70% Installation and operation instruction  3.1 Take out the detector from the packaging.  3.2 Screw the antennas into the corresponding antennas seats repectivelt, otherwise they will be useless.  3.3 Hang the detector onto the wall. (Setting height ≥2M)  3.4 Insert the AC plug into the socket, then switch on. When  the power indicator is lit, it means that the device starts working. (Different detector should be with different battery.) 

EST-101A cellphone signal detector +alarming system