SV 277 PRO is an outdoor monitoring system based on SVAN 977 Class 1 sound level meter. The IP 65-rated case contains a lead-acid battery which operating time can be easily extended by connecting an external battery or a solar panel. The intelligent charging unit enables the use of a solar panel without expensive controllers or heavy batteries.
The case is fitted with very robust, waterproof connectors (military standard) and is supplied with an IP 65 external power supply. The light-weight microphone protection kit can be easily installed on a mast with standard mounting threads.
All accessories fit conveniently into a second carrying case. The system provides broadband results such as Leq, Max, Min, and Peak with all standard weighting filters together with an incredible time-history logging feature with two adjustable logging steps. The broadband results can be recorded in three acoustic profiles which enable measurements to be taken with 3 different filters (e.g. A, C, Z) as well as 3 different detector time constants (e.g. Fast, Slow, Impulse).
The SVAN 977 can be easily removed from the case and used as a hand-held sound level meter. The monitoring station uses a 3G modem for the remote communication with the Internet. SvanNET, a relay server, supports the connection between PC and station. The SvanNET allows the usage of all types of SIM cards with the system, regardless if they have public or private IP. The connection over the SvanNET allows users to use a mobile phone or tablet to check the status of the noise monitoring station.