59022 Reed Sensors Littelfuse 59022 Reed Sensors are small, cylindrical sensors with a 5.80mm diameter and 25.4mm length. They utilize a magnetically operated proximity sensor and are capable of switching up to 200VDC at 10W. These sensors operate through non-ferrous materials such as wood, plastic, and aluminum. The series is available in a choice of normally open, normally closed, or change-over contacts with a range of sensitivity and cable lengths. Littelfuse 59022 Reed Sensors are ideal for position and limit sensing, security, level sensing, and linear actuator applications. They are also well suited for usage in high moisture and contaminated environments. The 57022 actuator is sold separately.