The KSK-1A66 series reed switch is a miniature high automotive grade reed switch. Glass length of 14.0mm and diameter of 2.2mm. Rated power 10 W, Switching voltage 180 VDC, Switching current 0.5 Amp DC. Most used, UL approval.
Automotive, general purpose, industrial
Data Sheet Link https://www.standexelectrronics.com/1A66-1113