Profile: Cirrus Research PLC is a manufacturer of noise measurement instruments. We comply to the requirements of ISO 9001:2008 quality standard. We specialize in the design, manufacture, and distribution of noise measurement instruments. Basic sound level meter is one of our products that is ideal for simple noise level testing, noise ordinance enforcement, community noise assessment, machinery maintenance, fireworks, and pyrotechnic testing. We also have a range of permanent and portable noise monitors, sound level meters, and noise measurements systems that can be used for the measurement and monitoring of environmental noise. Their applications include airport noise monitoring systems, power stations, construction sites, product development and testing, firing ranges, and mining & quarrying applications.