How do I download the 399, 400U, and 401 manual?

Installation and Operations Manual for the Ademco 399, 400U, and 401, published in 1980. 10 models including 399, 400U, 401 and 7 additional variants. System installation procedures and daily operating instructions.

Technician Essentials

Smoke Detector Tester, 10 in. L x 9 in. W

ExpertPower 12v 7ah Rechargeable Sealed Lead Acid Battery

Klein Tools 32500 11-in-1 Screwdriver/Nut Driver Set, 8 Bits (Phillips, Slotted, Torx, Square), 3 Nut Driver Sizes, Cushion Grip Handle

Smoke Detector Tester, 10 in. L x 9 in. W

ExpertPower 12v 7ah Rechargeable Sealed Lead Acid Battery

Klein Tools 32500 11-in-1 Screwdriver/Nut Driver Set, 8 Bits (Phillips, Slotted, Torx, Square), 3 Nut Driver Sizes, Cushion Grip Handle

Essential Fire Alarm Tools for Technicians

399, 400U, and 401

About This Manual

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