Models Available

2400/2400A Photoelectronic

2400TH Photoelectronic with Thermal

2412B/2412BA Photoelectronic

2412THB Photoelectronic with Thermal

2424 Photoelectronic

2424TH Photoelectronic with Thermal

Direct-Wire Photoelectronic

Smoke Detector

© System Sensor 2/97

This document is not intended to be used for installation purposes.

A05-194-03

APPROVED

A Division of Pittway

3825 Ohio Avenue, St. Charles, IL 60174

1-800-SENSOR2 (736-7672), Fax 630-377-6495

http://www.systemsensor.com

Features

• 12 or 24 volt operation

• Unique optical sensing chamber

• Removable cover and insect screen for easy

cleaning

• Visible LED blinks in standby, latches on in

alarm

• Sealed against dirt, insects, and back pressure

• Field sensitivity metering of detector to meet NFPA 72

requirements

• Twist-on mounting bracket with tamper option

• SEMS screws for easy wiring

• 3-year warranty

• Optional built-in 135

°F (57°C) heat sensor

Specifications

Size:

3.2

″ (8.1 cm) h, 5.5″ (13.9 cm)

dia. with mounting bracket;

add .5

″ (1.27 cm) to height for

thermal

Shipping Weight:

0.5 lb. (227 g)

Operating Temperature Range:

Thermal Models:

32

°F to 100°F (0°C to 38°C)

All Other Models:

32

°F to 120°F (0°C to 49°C)

Operating

Humidity Range:

10 – 93% RH noncondensing

Air Velocity Rating:

3000 fpm

Wiring Gauge:

12 – 18 AWG, twisted pair

recommended

Mounting:

″ or 4″ octagon box,

4

″ square box with plaster ring,

50, 60, 75 mm boxes

Smoke Detector Spacing:

On smooth ceilings (as defined in NFPA 72), spacing

of 30 feet (900 sq. ft.) may be used as a guide. Other

spacing may be used depending on ceiling height,

high air movements, and other conditions or response

requirements.

Sensitivity:

3.0%

± .7 ft. nominal

Test Features:

1. Test port – Insert 0.1 inch maximum diameter allen

wrench or screwdriver into test port on detector

housing.

2. Test card – After removing detector cover, insert

calibrated test card into test slot on screen.

3. Test module – Using a standard voltmeter interface,

insert MOD400R plug into detector’s module port.

Fulfills calibrated sensitivity test per NFPA 72.

Thermal Sensor Rating

(thermal models only): 135

°F fixed temperature

restorable