Sensor Solutions Holdings (SSH)

Sensor Solutions Holdings (SSH) is a diversified manufacturer of specialized sensor equipment. To date, SSH is composed of two operating companies. Nielsen-Kellerman ( is a leading manufacturer of portable devises to measure environmental conditions for use in agriculture, fire fighting, industrial hygiene, mining, military and various recreational markets. Amptek Inc. ( designs and manufactures instrumentation used in numerous non-destructive testing and elemental analysis applications. Amptek was sold to a strategic buyer in 2014.