NCTS QSTROM PRO 3000VA/1800W Line Interactive UPS with AVR, Simulated Sinewave Output, Fast Recharge, Full Protection, LCD Display, 12V 9A x4 Batteries , Off-Mode Charging & Generator Compatibility for Personal Computers

Expert Features: Line Interactive UPS with Simulated Sinewave Output: Provides stable power with simulated sinewave output, ensuring protection for sensitive equipment. Microprocessor Control: Guarantees high reliability with internal self-diagnostic technology, monitoring the UPS for optimal performance. Boost and Buck AVR: Stabilizes input voltage with two boost and one buck control to maintain a wide input voltage range of 140-300Vac. Off-Mode Charging: Allows the UPS to charge even when not in use, ensuring the battery remains ready. Fast Intelligent Battery Recharge Function: Rapidly recharges the battery to 90% capacity within 6-8 hours. Generator Compatible: Compatible with generators, offering reliable backup power during outages. LCD Display: Provides clear, real-time information about AC mode, battery mode, load level, battery level, input/output voltage, and status alerts. Full Protection: Includes short circuit, overload, overcharge, and overdischarge protection to ensure safety and longevity. Expert Specs: Capacity: 3000VA/1800W Input Voltage: 220VAC Input Voltage Range: 220/230/240Vac Input Voltage Range (Boost/Buck AVR): 140~300Vac Frequency Range (Auto Sensing): 50/60Hz Output Regulation (Batt. Mode): ±10% Output Frequency (Batt. Mode): 50/60Hz ±1 Hz Transfer Time: 4-8ms (Typical), 13ms Max. Output Waveform: Simulated Sinewave Battery Voltage: 48Vdc Battery Type & Number: 12 V/9Ah x 4 Recharge Time: 6-8 hours to 90% capacity Alarm: Low battery, overload, battery replacement, and fault alarms with varying frequencies Operating Environment: Humidity: 0-90% RH @ 0-40°C (Non-condensing), Noise Level: <55dB Physical Dimensions: 436x145x212mm (DxWxH) Net Weight: 23kg