Based on this product's specifications, here are some alternatives and similar models
Uninterruptible Power Supply UPS ONLINE USV-Systeme ZINTO 1000
Summary description:
The ONLINE USV-Systeme ZINTO 1000 is a Line-Interactive UPS with a capacity of 1 kVA and 900 W, featuring 8 AC outlets (C13). It has a 12 Ah battery providing 7 minutes of backup at full load. This rackmount/tower UPS is designed for reliability and efficiency, certified under EN62040-2 standards, ensuring protection against power disturbances.