Compatible with 48, 40 & 22 Pin Machines Everything needed for installation is included Easy Installation Battery powered with auto-off Now Compatible with 22 Pin machines! Row Counter for Import Knitting Machines 48, 40 & 22 Pins/Needles compatible. -Patent Pending- Tired of losing row count? Frustrated with inaccurate counts from a stock counter? Can't keep up with a motorized machine? This digital row counter is a quick and convenient solution. Compatible with typical 48, 40 & 22 import machines ("Sentro" and similar). Not compatible with "Addi" branded machine counters. Installs in minutes - Comes with everything needed for installation on a single machine. Powered by long-life and user replaceable battery (comes installed and ready to go). Also features an auto-off function (~10 min) with memory. If you pause during knitting and the screen turns off, simply resume knitting and the screen will turn back on the next time the magnet passes the housing. Results in a much quicker & cleaner installation when compared to current DIY offerings! Please note: Due to continuous improvements product may appear slightly different from pictures. This is a product of DCSI-LLC Made in the USA.