If you need to log octave and/or third octave bands (LAeq, LAmax, Lmin, SEL and LN%) then you need an NA-28 Based Long-Term Noise Monitoring System. The NA-28, Rion's top of the range meter, offers unparalleled data storage potential and is power efficient enough to run for 7 days from a full charge off a pair of gel-cell batteries. The NA-28 long-term systems are available in both Standard and Enhanced Outdoor Kit Format and can be used with the NX-28WR for a long-term noise monitoring system with audio recording capability.

• Rion NA-28 (Class 1) Sound Analyser
• Rion WS-03 Outdoor Microphone Protection
• Weather Resistant and Lockable Case for Sound Level Meter
• Gel-Cell Batteries & Charger Providing 7 days’ Continuous Use in Standard format although additional batteries can optionally be added for longer battery life;
• Microphone Extension Cable (2m, 5m, 10m lengths available off the shelf and 30m, 50m and 100m lengths can be ordered);
• Mains and solar powered options available;
• Measures and logs Leq, Lmin, Lmin, SEL + 5 Lns in octaves and/or third octaves
• Octaves & Third Octaves can be measured simultaneously
• Sub-channel for simultaneous measurement of two time/frequency weightings
• Massive storage potential of real time octave and third octave band spectra, onto a compact flash card
• Stored data saved as text files which can be read directly by spreadsheet programs
• Computer access to the data is not limited by dongled or bespoke software
• Excel macros for formatting data supplied free of charge
• Audio recording option available

Rion NA-28 Class 1 Integrating Sound Level Meter & Real Time Octave/Third Octave Analyser The Rion NA-28 is the quickest and easiest to use Class 1 multi-function sound analyser. The superb colour display is visible in all lighting conditions – you can always see what the instrum... view product details
Rion NX-28WR Sound Recording Option for Rion NA-28 (Class 1) Sound Analyser The NX-28WR adds really flexible and practical audio recording capability to the Rion NA-28 Sound Analyser . The audio is stored as calibrated wav files which can both be played back using any stand... view product details
Rion WS-03 Outdoor Protection for Rion Microphones The Rion WS-03 Outdoor Microphone Protection System is practical, simple and effective, providing all the protection that a Rion microphone and pre-amplifier need against the elements. The WS-03 is t... view product details
Standard Long-Term Noise Monitors The ANV Measurement Systems Standard Long-Term Noise Kits based on Rion NL-31 (Class 1) are very widely used for baseline noise surveys and construction noise monitoring. This simple and economic s... view product details
Enhanced Long-Term Noise Monitors ANV Measurement Systems Enhanced Long-Term Noise Kits based on Rion NL-31 (Class 1) are very widely used for baseline noise surveys. The weather-protected microphone is mounted on a stainless steel... view product details
Long-Term Noise Monitors with Audio Recording The next best thing to a long-term attended survey is a long-term unattended noise survey with audio recording. This enables you to measure the noise levels over an extended period of time cost-effec... view product details