Based on this product's specifications, here are some alternatives and similar models
Uninterruptible Power Supply Green Cell UPSLP1400 2 kVA 1400 W 4 AC outlets, 2×12 V 9 Ah batteries
Summary description:
Line-interactive uninterruptible power supply Green Cell UPSLP1400 provides 2 kVA (1400 W) output with 4 AC outlets and pseudo-sine output waveform. Features AVR, 220–240 V input range, 50/60 Hz, USB port and cold-start function. Uses 2 sealed lead-acid (VRLA) 12 V 9 Ah batteries (included) to protect equipment from outages and stabilize voltage for home or office devices.