difference between shcush and scush

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EDA ARM - The EDA arm is a heavy duty parallel arm mount.  The degree of door opening is determined by the template used for mounting. EDA arm closers can only be mounted as a Push Side parallel ar...
The 4600 is designed for an opening with (MOSTLY) manual traffic, and the (OCCASIONAL) automatic activation. The Senior Swing is designed for an opening with (MOSTLY) automatic activation, and (OC...
A warm boot on a biometric handreader resets the handreader to factory default settings but does not erase the user database.  A cold boot on a biometric handreader resets the handreader to factory...
Here are some of the major differences between the M and MA-Series.  Lever mounting post holes -  Locations have changed on door template.  (12 and 6 o'clock for M lock, MA lock is approx 1 and...
We used to offer a E99 rim device where there was a solenoid to lock or unlock the lever or thumbpiece trim on the back side of the center case of the 98/99 device.  When we created the E996L trim ...
The old D-Series Lever used a standard lever insert similar to the pre-2002 AL-Series standard lever insert.  The old D Lever insert was smaller than the AL and the two were not comp...
The RX monitors the push bar while the LX monitors the latch bolt of the exit device. A SS device has an LX and a key cylinder switch plus an emergency push bar signage.