Intelligent counter tachometer slave select paxi independent with 2 points 1 display for sum difference and a tachometer input frequency max 34 khz depending on the mode of operation almost all commercially available sensors are adaptable easy programming at the unit or via pc using software 6 digit 14 mm high red and dimmable led display phase to 4 fold resolution tachometer with period measurement and 10 step linearization freely programmable user inputs front side protectio