Based on this product's specifications, here are some alternatives and similar models
Uninterruptible Power Supply PowerWalker VI 1000 R1U
Summary description:
The PowerWalker VI 1000 R1U is a reliable uninterruptible power supply (UPS) with a capacity of 1 kVA and 600 W output power. It features 4 AC outlets (C13 coupler) and operates with a minimum input voltage of 165 V. The UPS is equipped with a 7 Ah battery, providing a backup time of up to 0.8 minutes at full load. Its compact design (433 mm width, 485 mm depth, 44 mm height) makes it suitable for various applications.