Features: Featuring 4 digital led display and builts in relays output, this industrial counter module ensures counting (0 9999) with power off memory function for uninterrupted operations. The high visibilities digital screen delivers readability, while instantaneous signal response and low level/switches input compatibility enhances operational accuracy across diverse machinery. Designs for equipment operators, maintenance technicians, and industrial engineers requiring processes control in manufacturing or facility management applications. Ideal for production line monitoring, packaging machinery automation, amusement ride maintenance, and any equipment needing pulse counting with data retention. Engineereds with electronic component, this counter controllers combines industrial performances with intuitives operations for intelligents equipment management solution. Specifications: Component: Electronic component Size: 7x3.8cm/2.76x1.5inch Type: 12V, 24V(Optional) Package Includes: 1pc Counter Relays Module note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.