# 1451 Ionization Smoke Detector

## Features

· Unique dual unipolar sensor for stability.
· Plug-in head to base.
· Tamper-resistant feature.
· Built-in test switch.
· Visual alarm indicators.
· 360° view angle of LEDs.
· Compatible with FCI control panels.
· Field adjustable sensitivity.
· Field metering of detector sensitivity.
· Insect-resistant screening (.020"/.508 mm openings).
· Removable screen and cover for cleaning.
· Sealed against dirt, insects, and back pressure.

## Specifications

· Nominal Sensitivity: 1.5 %/ft
· Operating Voltage: 8.5 - 35 VDC (24 VDC nominal)
· Operating Temperature: 32° to 120° F (0° to 49° C)
· Operating Humidity: 10 % - 93 % relative humidity
· Air Velocity: 1,200 FPM
· Altitude: 10,000 ft.
· Construction: Off-white flame retardant plastic
· Diameter: 6.2 inches (15.7 cm)
· Height: 3.2 inches (8.1 cm)
· Weight: 0.5 lb (277 g)

## Installation & Testing

· Mounting:
- On a 4-inch square box (minimum 1.5 inches depth).
- On a 3.5 or 4-inch octagonal box (minimum 1.5 inches depth).
- On a single gang box (minimum 1.5 inches depth).
· Tamper-Proof Feature: Can be disabled by breaking a tab.
· Testing:
- Place a magnet against the cover to trigger alarm (within 5 seconds).
- Field metering possible with a voltmeter and Test Kit MOD 400R.

## Ordering Information

· 1451: Ionization Detector
· B401B: Two-wire Base
· B402B: Four-wire, 24 VDC Base
· 301B4AC: Four-wire, 120 VAC Base
· RA-400: Remote alarm indicator
· PAM-1: End-of-line relay (24 VDC)
· Test Kit