https://www.stdrpowertronics.in/home-ups/

We, "STDR Powertronics", are manufacturers, suppliers, and distributors of UPS, inverters, Burglar alarms, Fire Alarm systems, CCTV cameras, Biometric Attendance systems, batteries, Electrical parts, and many more. STDR features are

Microcontroller-based design with DSP technology,
PWM Sine wave Output,
SMPS-based battery charger that charges batteries from 110V,
Selectable Charging Current and Voltage,
Complete OL and Short Circuit Protection with the facility to run highly Inductive loads,
Automatic overload reset,
Protection against an abnormal temperature rise,
Can accept any input wave, like a sine wave, Square wave, generator, etc.
Automotive low battery warning and cutoff,
Fuzzy logic, Battery charging control,
Closed-loop regulation Sine wave output from no-load to full load.