Selec Controls Pvt. Ltd. Offers 4 Digit RPM Indicators, available in various models including RC 5100/RC 2100/RC 100. Some of the technical specifications of these 4 Digit RPM Indicators are as follows: Accepts input from - Encoders Proximity switches Potential free contacts Rate accuracy better than 0.05 percent 4.00 to 9999 rpm auto-ranging indication
