What types of equipment are used for construction boundary noise monitoring?

Boundary noise monitoring typically uses Class 1 or Class 2 sound level meters, which are precision instruments compliant with IEC 61672 standards. These meters are placed in weatherproof enclosures and operate continuously, recording sound pressure levels in decibels (dB).

Some are connected to online dashboards that display live data and send alerts if noise exceeds the set limits. They may also measure background noise to distinguish between site activity and external sources like traffic.

For long-term projects, automatic systems are preferred as they require minimal maintenance and deliver reliable 24/7 results.