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CS-602

AUDIO DETECTOR

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Installation Manual & Users Guide

SPECIFICATIONS

Frequency: 345MHz
Battery: One 3Vdc lithium CR123A
Battery life: up to 4 years
Detection distance: 6 in max

Operating Temperature: 32°-120°F (0°-49°C)
Operating Humidity: 5-95% RH non

condensing

Compatible with 345MHz ClearSky Hub
Supervisory signal interval: 70 min(approx.)

Maximum current draw: 23mA during transmission

OPERATION

The FireFighter™ sensor is designed to listen to any smoke, carbon or combo detector. Once confirmed as an

alarm, it will transmit a signal to the alarm control panel which if connected to a central monitoring station, will

dispatch the fire department.
WARNING: This audio detector is intended only for use with smoke, carbon and combo detectors but it does

not detect the presence of smoke, heat, or fire directly.

ENROLLING

To enroll the sensor remove the top cover by depressing the friction tab in order to reveal the 

battery.  Pull and discard the battery plastic tab to turn on the device. 

Download and install ClearSky App on your android or IOS phone.

Open your

ClearSky APP and follow the directions on the app to learn in the sensor.  

App will require you to press the learn button when linking (Image 1). 

There are 2 modes of detection on the FireFighter

.  Mode 1 is smoke only and Mode 2 is smoke and 

carbon monoxide alert detection.  To switch between modes, remove the battery, press and hold 

the tamper switch and learn button until a red LED turns on.  Let go of tamper and learn button.  1 
red blink indicates smoke alert detection.  2 red blinks indicates smoke + CO alert detection.

MOUNTING 

Included with this device is a mounting bracket, hardware and double sided tape. To ensure proper 
operation ensure the side of the device with the small holes is directly facing the sounder holes on the smoke
detector. Secure the mounting bracket to the wall or ceiling using the two mounting screws and double
sided tape provided, then secure the audio detector to the mounting bracket using the small screw
provided. The FireFighter™ must be mounting within 6 inches of the detector for optimal operation.

WARNING: Non-interconnected smoke detectors require an audio detector by each smoke detector sounder.

This equipment should be installed in accordance with Chapter 2 of the National Fire Alarm Code, ANSI/NFPA 
72, (National Fire Protection Association, Batterymarch Park, Quincy, MA 02269). Printed information describing 
proper installation, operation, testing, maintenance, evacuation planning, and repair service is to be provided 
with this equipment. Warning: Owner’s instruction notice: ’Not to be removed by anyone except occupant’.

A Universal Electronics Company 

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