The OMRON K3HB-CNB-L2AC21-AC100-240 is a versatile digital panel meter designed for high-speed pulse measurement applications. Ideal for industrial automation, this device supports rotary encoder and ON/OFF pulse signals with a cumulative pulse input of 50 kHz and quadrature pulse inputs of 25 kHz. It features a dual-color display for easy operation monitoring, relay contact outputs, and a sensor power supply of 12 VDC. Compatible with H7AN functions, it facilitates seamless integration and conversion from previous models. This panel meter is perfect for applications requiring precise up/down counting and frequency measurement.