Reliable under extreme conditions, the MK27 magnetically-activated reed sensor in a robust aluminum housing comes in a set with a mating actuator magnet, pre-calibrated for industrial uses. The sensor features a cable insulated with a metal jacket for additional security. Designed for screw fastening, the sensor is typically mounted to a fixed surface while the actuating magnet mounts on a moving surface. The MK27 is available with switching power from 10W to 100W, switching voltage from 200 to 1,000 Vdc, and a switching current from 0.5A to 1A. MEDER ELECTRONIC INC., West Wareham, MA. (508) 295-0771.