The Omron H7ER-N-B Counter provides accurate tachometer functionality with a 1 kHz input speed and 0.5 ms response time for reliable speed measurement. Its clear 4-digit LCD ensures easy reading, while the no-voltage input method supports simple wiring with switches and mechanical sensors. Built for industrial durability, it withstands noise, shock, vibration, and electrostatic discharge. The IP66 front panel and wide operating temperature range enable dependable use in demanding environments. Manufactured by Omron and positioned under Omron Counter products, this model is part of the Omron H7ER Series.