MPSR Series manual pull stations from Edwards are noncoded fire alarm stations solidly constructed of die-cast material. All components are pre-painted or have plated surfaces to inhibit corrosion. Weatherproof manual stations are rated for outdoor use. Single- and double-action MPSR models are available with either single pole (normally open) or double pole (double throw) alarm contacts. Depending on the model, access to the unit for resetting purposes is gained with either a keylock or hex screw. All models feature terminal block connections and 10 amp contacts. MPSR Series manual stations have 10 amp contacts. They may be used with or without a break glass rod. Rod replacement requires no special tools. Each manual station may be reset and locked using the standard key or hex key provided.