- SPECTRI-LAB
- SPECTRI Catalogue
- WEBNOISE.eu - the application of SPECTRI LTD for measuring, monitoring and real-time display of environmental parameters (noise, vibration, dust, meteorological data, others)
- Monitoring terminal for environmental parameters type SPECTRI ESMU - 1
- SPECTRI General Brochure
- SPECTRI General Brochure 2
English (UK) 
Български