The 1746SC-CTR4 from Spectrum Controls is one of the best quadrature encoder counter modules available on the market today. This module is a 4-channel counter / flowmeter module. The 4 external counters of the 1746SC-CTR4 enable command input for the device. The 1746SC-CTR4 makes the automation of filling stations in factories.The 1746SC-CTR4 is programmable for both alarm flags and zero flags as required during operations. It also accommodates for K, M, and R factor manipulation that is scalable through programming. The 1746SC-CTR4 has 4 quadrature encoder input channels.