gsm trackers---connect the camera,LCD,RFID reader

gsm trackers: Description: High sensitive SIRFIII Star GPS Chipset and advanced multi-band GSM module Remote control via mobile phone or computer; Excellent locating capability under weak signal enviroment; Locate single waypoint or track continuously; Locate at preset time interval or real time; Living tracking on map; Send SOS message for emergency rescue; Send low power notification when battery will die out; Send over speed alarm when vehicle moves over restricted speed; Send geo-fence alarm when vehicle exits or enters restricted area; Build-in motion sensor; Sleep when no motion; Send parking alarm when someone move vehicle; Detect working status periodically like hear-beat rate; Send power disconnection alarm when someone cuts off power line; Cut off engine instantly or in on-off mode when someone drives vehicle; Turn on or off door-lock; Measure oil, water temperature and air temperature; Detect on/off status such as engine, ACC, doors etc; Store data in flash when no GPRS and send when GPRS recovers; Two-way conversation; Find out the GSM cell ID which SIM card is currently attached to;Odometer; Connect serial port devices such as camera, DVR, LCD, barcode or RFID reader and printer etc; 2 switch inputs, 2 analog inputs, 4 digital inputs, 4 digital outputs, 2 serial inputs and 1 mini USB port; Set parameters via mobile phone or configuration software; Update firmware via hyper terminal; Perfect manage application for car, taxi, bus, truck, van and trailer etc.Special and Unique: Connect to RFID Reader, Cameras, LCD, Printer, DVR,etc. Mileage calculation function With Flash Memory function Fuel/oil level detection Temperature sensors Specifications: FeatureCharacteristicsDimension 108mm*58mm*28mm N.W 140g Exterior Power Supply DC 12V – 24V Inner lithium battery DC 3.7V Standby time About 72 hours Work time About 12 hours Exterior GSM antenna Receive GSM signal better Exterior GPS antenna Receive GPS signal better Operating Temperature Range -20°C to +60°C Air pressure 860Kpa –1060Kpa Humidity Up to 75% non-codensing Position accuracy 10 –15 meters GSM chip support 3 frequency GSM 900/1800 /1900MHZ GPS chip Sirf-Star III (super-sensitivity and high accuracy ) Hot start 1 sec, average Warm start 38 sec, average Cold start 42 sec, average LED 3 LEDs indicates GSM signal, GPS signal, power on and GSM module, charge LEDs Button(not in the basic version) 2 buttons, report location GPS ChipsetSIRF StarIII GSM ModuleSimcom GSM900/1800/1900 MHz or 850/900/1800/1900 MHz Exterior Power Supply DC 12V – 24V Inner lithium battery DC 3.7V Air pressure 860Kpa –1060Kpa Humidity Up to 75% non-codensing Position accuracy 10 –15 meters GPRS ProtocolTCP/UDPPosition Accuracy10-15 metersI/O Port2 switch input ports, 2 analog input ports, 2 digital input ports, 4 digital output ports, 2 serial input ports and 1 mini USB portMotion SensorBuild-inFlash Memory32Mb flash (save more than 10,000 points)Microphone/speakerHigh sensitivity