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What power supply replaces the Von Duprin 9VDC PS9 power supply?

The PS9 power supply was discontinued.  The new exit alarm ALK can either use a 9VDC battery or 24VDC regulated power supply.

  1. There is no direct replacement for Von Duprin PS9 power supply.
  2. Current exit alarm ALK will use a 24VDC regulated power supply, such as PS861, PS873 or any of the current PS900 series power supplies, or the internal 9VDC battery.

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