Quick view VDO Kitas2+ Smart Tachograph speed sensor - M22×1.5 Female VDO 2171-01000010 Smart tachograph sensor: Kitas2+ Compatible: DTCO 1381 - MTCO 1324 Application: See specifications Thread: M22x1.5 - Female Impulses per revolution: 8 ISO15170 Connector: 4-Pole Blue-Grey 2171-01000002