SV 277PRO Noise Monitoring Station is an outdoor monitoring system based on SV   977 Class   1 sound level meter.

The SVAN  977 can be easily removed from the case and used as a

hand-held sound level meter.

The monitoring station uses a 4G modem for the remote communication with Internet.

A lead-acid battery is place in an IP   65-rated case for extra protection.

This battery operating time can be easily extended by connecting an external battery or

a solar panel.

The intelligent charging unit enables 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.

A light-weight microphone protection kit can be easily installed on a mast with standard mounting threads.

The noise monitoring system provides broad-band 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 broad-band 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).