*3.5” CCTV tester

*External power supply or internal rechargeable battery, standby up to five to six hours

*On screen data display for video levels, battery voltage, AC/DC,cable signal, video system, protocol, pattern and audio volume

*RS-485, Pelco P/D test PTZ

*Voltage measurement (AC 20-250V, DC 0-45V)

*Coaxial cable test (open/short)

*Input video loop out, BNC in/out

*Built-in speaker with adjustable volume control

http://www.hisharp.com/en/content/downloads/Monitor/Large/Advance/LCD.pdf