Protech [Progressive Technologies] offers Microprocessor Based Bearing Echo Meter. Protech [Progressive Technologies] is an ISO 9001: 2000 certified company supplying a wide range of dispensers, tyre gauge, bearing tester, echometer etc. For various industrial applications. The Microprocessor Based Bearing Echo Meter of model number M-900 is a simple to use instrument that evaluates the operating condition of all ball and roller bearings. The Microprocessor Based Bearing Echo Meter can store 250 readings and displays them or print them by connecting it to any printer [Parallel interface] or transferring it to a computer [RS-232 port].