Napco Gem P800 Codes

GEM P-400
Master Code User 1
Secondary Codes User 2 to 3
Duress Code User 4 (May not be enabled)
GEM P800
Master Code User 1
Secondary Codes User 2 to 7
Duress Code User 8 (May not be enabled)

Add Code
1. FUNCTION + 8 + Master Code + ON/OFF (Armed, Status flashes, 4 beeps)
2. Enter User (Gem-P400 1 to 4) (Selected User light will Flash)
(Gem-P800 1 to 8)
3. Enter new 4-digit User Code (Selected User light turns ON)
4. Press RESET to exit

Erase Code
1. FUNCTION + 8 + Master Code + ON/OFF (Armed, Status lights will flash)
2. Enter User (Gem-P400 2 to 4) (Selected User light will Flash)
(Gem-P800 2 to 8)
3. Press INSTANT key (Selected User light turns OFF)
4. Press RESET to exit