Based on this product's specifications, here are some alternatives and similar models
Saw for aerated concrete Topex 600 mm
Summary description:
Hand tool designed for cutting aerated concrete blocks with a 600 mm blade length. The Topex saw for aerated concrete provides straight, controlled cuts for masonry and lightweight concrete units. Suitable for construction and renovation tasks where precise sizing of blocks is required, including wall assembly, partitioning, and site adjustments.