UPS backup intelligent type uninterrupted power supply ( Square wave output)has RS232 interface to PC. Which is i The specification of  UPS (online ups, online unterrupted power,power supplier,ups, online power) as following:

CPU microprocessor control, monitor the UPS and battery state automaticallyPower management software, graphical displayAVR high accurate and full voltage and frequency stabilization,  wide input voltage rangeSoft start, and distinguish the frequency of power network automatically (50/60Hz)Perfect protection function (over-voltage, under-voltage, over-load, short circuit, battery low limit) Intelligent battery control and computer communication functionIntelligent sound indication and LCD display

Technical spec (UPS-L backup lntelligent network type uninerrupted power supply)

lnput voltage Single-phase tow-wire 130-280V Range of voltage regulation 140-265V Output voltage 220V±5% rated capacity 650VA 1300VA Output max load 500VA 1000VA Power factor 0.7 Output frequency 50/60Hz±1% Battery type 12V/7Ah/12V/7Ahx2 Environment temperature -5~40 Environment humidity 10%-90%(No condensation) Noise ≤45dBA NW(kg) 6.75kg 11kg Outine size (mm) 385 x135 x210 410 x165 x255

UPS-L