Ross Brown Sales Pty Ltd Home ›› Local Listings ›› NSW ›› Baulkham Hills ›› Ross Brown Sales Pty Ltd NSW Business Services Baulkham Hills, NSW 2153 David Geraghty02 9899 2744Fax: 02 9899 4233https://www.rossbrownsales.com.au Ross Brown Sales, established since 1957, is one of Australia's leading suppliers of products suitable for precision pressure measurement and calibration, temperature measurement and calibration & data logging with offices in Sydney, Melbourne, Brisbane and Auckland NZ.