The Cellwatch system was a pioneer in its ability to monitor batteries daily, now regarded as an essential requirement for critical UPS and power-protection applications.

This modular design is well suited for every application, from small systems to multi-building campuses.

With offices in Raleigh, NC, Milton Keynes, England and Shanghai, China, NDSL is the leading global provider of battery monitoring solutions.

The award winning Cellwatch monitoring system is used on some of the world's most critical computer systems by companies such as Exodus (Cable & Wireless), Schering Plough, GlaxoSmithKline, TeleCity, Shell, Globix, EDS and many more. It is also used in several UK and US government installations.