About the product
The ASD range impresses with its proven monitoring technology and unrivalled performance.
Developed in Switzerland and manufactured in Germany, the aspirating smoke detectors are particularly reliable and robust. Thanks to their sophisticated detection technology, actively drawing air into the detector for very fast detection of smoke particles, they can detect incipient fires immediately. An active monitor alerts if operation is compromised, such as the smoke detector being masked.
Whether in IT racks, production halls or large deep-freeze areas, Patol has the perfect fire protection solution for all safety requirements. ASD detectors are available in three models, with the main difference between them being the maximum possible monitoring area. This means that protection without compromise is now even more cost-effective in small premises.
ASD 535
The flagship model for large-scale HSSD applications
The ASD 535 aspirating smoke detector in 4 versions (1 or 2 channels, with/without smoke level indicator) is the universal device with outstanding performance characteristics for medium-sized and large monitoring areas. Its ambient temperature range reaches as low as –30°C, making it perfect for deep-freeze warehouses.

ASD 532
The compact solution for small to medium-sized HSSD applications
The ASD 532 is the single-channel high sensitivity aspirating smoke detection device for medium-sized monitoring areas. It has the same technical specifications as the ASD 535, but with just one sampling tube and a more compact fan.

ASD 531
Simple and convenient for smaller premises
The ASD 531 HSSD aspirating smoke detector is tailor-made for small monitoring areas and for customers who would like a fast-acting ASD device that is even easier to use but still want an extensive range of accessories.

Pipes and Fittings
Parts for our Aspirating Smoke Detection systems
We provide a range of different pipes and fittings for Patol Aspirating Smoke Detection systems. These include dust filters, sampling kits, sockets and more.

EC22
Innovative and cost-effective transmitter for toxic gases
The EC22 Gas Detection Transmitter provides a combined Gas and Smoke detection solution when used with the Patol Aspirating Smoke Detection system.
