If you're concerned about ambient noise then you will find the Casella Digital Sound Survey Meter to be the tool of choice to measures sources such as fans, pumps, compressors, heating and ventilation systems or machinery that runs at constant speed.  The CEL-231 type 2 sound meter allows you to determine sound levels and problem sources that fail your noise criteria.

A large, easy to read digital display indicates the noise level with a resolution of 0.1 dB over a wide range of noise levels.

The Casella Digital Sound Survey Meter even has two analog outputs that can be used to feed other devices.

Features:

• Includes Certificate of Conformance to Type 2 and Type S(2) standards
• Hi measurement range 65 -135 dB
• Lo Measurement range 30 - 100 dB
• 'A' frequency weighting cover the majority of noise measurement applications
• Large digital display with 0.1 dB resolution
• Long battery life using 4 AAA alkaline cells
• AC and DC outputs provide analog signals to other pieces of equipment

Some Applications Include:

• Hospital Rooms - NC-30
• School Rooms - NC-35
• General Office - NC-40
• Cafeteria    -    NC-45
• Factory     -    NC-65

Spec Summary: