Harsh environment enclosure

A harsh environment sensor system, comprising:

• a housing having an end wall, a pair of opposed sidewalls, a top wall, a bottom wall, and a sensor compartment having a sensor opening;
• a door hinged to an inner surface of the top wall proximate the sensor opening;
• a linkage assembly, including:
• a door lever having an elongate first end portion connected to the door, a laterally extending second end portion, and an elbow portion positioned therebetween, wherein the second end portion extends toward the top wall;
• a pivot arm having a proximal end portion rotatably connected to an interior surface of the housing and a distal end portion rotatably connected to the elbow portion;
• and
• a linear actuator having a first actuator end portion connected to an interior surface of the end wall and a second actuator end portion connected to the laterally extending second end portion;
• wherein the linear actuator is positioned with respect to the door lever and pivot arm to move the door to an open position when extended and a closed position when retracted, and wherein the pivot arm and door lever are positioned in an over-center configuration when the door is in the closed and open positions;
• and
• a sensor module disposed within the sensor compartment.