DY-GSM50A 8 in 1 Kit 315MHz / 433MHz Wireless GSM/PSTN Intelligent Anti-Burglar Alarm System, Touch Panel LCD Screen(White) Filter-N Antenna adjust the head screw to

adjust the head screw to control the cutting depth of the blade to avoid accidental injury to the cable

2) Connect your old reliable printer to any USB port with this USB to 36 Pin Parallel port (IEEE 1284) data cable

3 x Silicone Connecting Sleeve

use stranded or solid core wire and a small screw driver to create custom cables

Product weight: 160g

DY-GSM50A 8 in 1 Kit 315MHz / 433MHz Wireless GSM/PSTN Intelligent Anti-Burglar Alarm System, Touch Panel LCD Screen(White) Filter-N Antenna adjust the head screw toFeatures 1. Dual network PSTN GSM home alarm system. 2. Built in clock and color TFT LCD screen, high sensitive touch panel keypad. 3. 10 seconds voice message recording. 4. RFID function(work with electromagnetic lock). 5. 3 groups of timely alarm and disalarm. 6. Support 6 wired, 50 wireless defense zones and 8 wireless remote controls 7. Set 6 alarm phone numbers. and 3 alarm SMS numbers. 8. Support wireless siren( Default frequency 315Mhz). Also