The Rion NA-28 is the heart of a lightning-quick sound insulation testing kit. ISO 140 and/or Schedule E results in the meter and downloadable and ready for printing on a PC in seconds. The FTL500 delivers up to 500W of pink or white noise via its onboard graphic equalizer yet weighs in at only 3.9kg. Both the FTL500 and the ANV Measurement Systems Tapping Machine come with radio remote controls as standard. Reliability, portability, accuracy and speed of use - everything you've come to expect from Rion and ANV Measurement Systems.