The REXNORD HSG,AL-1.69D SHFT HL,TACH is an aluminum housing designed for tachometer applications. This lightweight yet durable housing features a 1.69-inch diameter shaft, making it suitable for various industrial and automotive uses. Engineered for precision, it ensures accurate readings and reliable performance in tachometer systems. The aluminum construction provides excellent resistance to corrosion, enhancing longevity. Its design allows for easy installation and compatibility with standard tachometer interfaces, making it a versatile choice for engineers and technicians.