Instron Electronics Pvt Ltd offers 4 Digit Non-Contact Tachometer, TAC-4D, Indicators. Instron Electronics Pvt Ltd offers range of timers, counters, digital time switches, etc. 4 Digit Non-Contact Tachometer is available with resolution: 1 RPM up to 9,999 and 10 RPM above 9,999. It comes in dimensions: 72mm x 72mm x 110mm. The 4 Digit Non-Contact Tachometer is ideal for automotive industry, printing and packaging industry or in any process industry.