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DX-COKIT

WIRELESS CARBON

MONOXIDE ALARM

WITH A

TWO-CHANNEL

DIGITAL

RECEIVER

Installation
Instructions

PRODUCT DESCRIPTION

The DX-COKIT is a DXS-80 carbon monoxide (CO) alarm with a 
wireless transmitter that communicates with the matching DXR-
702 two channel receiver. The CO alarm monitors its operating 
condition and the transmitter will send battery status to the 
receiver. If the battery is low, the receiver’s channel two relay 
will latch until reset. In the event of an alarm, the transmitter will 
activate channel one of the DXR-702, and the receiver’s relay 
will close for four seconds. 

IMPORTANT: When the DXR-702 

is connected to a security panel it is very important that the 
central station monitoring the location is advised of which 
zone(s) will report a carbon monoxide alarm.

In a typical installation, the receiver is connected to an alarm 
control panel. The receiver should be mounted with the 
supplied mounting bracket indoors or inside a weather resistant 

non-metallic

 housing.

Refer to the instructions for the DXS-80 CO alarm included with 
this product for information about locating and mounting the DXS-
80. Please read the DXS-80 instructions thoroughly for important 
information about the effects of carbon monoxide poisoning.
The digital DX code format features over a million possible codes. 
The DX transmitters are precoded at the factory to unique codes, 
so no fi eld coding is required. 

For versatility, any transmitter can 

be programmed into any receiver channel.

 Receivers must be 

programmed to the transmitter’s code before system testing and 
operation. Up to 32 transmitters maximum can be programmed 
into the receiver. The transmitters can be split in any number 
between the two receiver channels. 

The DXS-80 CO alarm is factory programmed into channel one 
of the receiver that it boxed with in the DX-COKIT.
Receiver channel two is a special channel. If channel two memory 
is empty, with no transmitters programmed into it, it will report 
low battery signals from any channel one transmitters capable of 
sending them. When a low battery transmission is received, the 
channel two relay will latch. The relay will remain engaged until 
the channel two program button is pressed. The low transmitter 
batteries should be replaced before resetting the relay.
The receiver can be powered from a 11-17 VDC or 12-16 VAC 
power source. The relays’ normally open and normally closed 
contacts can switch up to 1 amp at 24 volts AC/DC.
A nine-inch wire whip antenna screws into the receiver’s antenna 
connector. Optionally, a remote antenna (Linear EXA-1000) can 
be connected to the receiver for greater radio range. The red 
program indicator lights during RF reception. The installer can 
verify that signals are being sent from transmitters and diagnose 
interference problems by viewing the indicator. The indicator also 
lights during memory programming/erasing and fl ashes to count 
the number of transmitters in memory.

DXR-702 FEATURES

TERMINAL DETAILS

MOUNTING RECEIVER

INSTALLATION TIPS

 

(760) 438-7000

USA & Canada (800) 421-1587 & (800) 392-0123

Toll Free FAX (800) 468-1340

www.linearcorp.com

ANTENNA
CONNECTOR

CHANNEL 2
PROGRAM
BUTTON

PROGRAM
INDICATOR

CHANNEL 1
PROGRAM
BUTTON

POWER AND
RELAY
TERMINALS

CHANNEL 2

RELAY

NORMALLY
CLOSED

COMMON

NORMALLY
OPEN

CHANNEL 1

RELAY

NORMALLY
CLOSED

COMMON

NORMALLY
OPEN

POWER

INPUT

11-17 VDC
12-16 VAC

1

2

3

4

5

6

7

8

BRACKET CAN
MOUNT IN THREE
PLACES

LOCATION 1

LOCATION 2

LOCATION 3

CORNER HOLE IS
SHARED FOR
LOCATIONS 2 & 3

USE SCREWS TO
ATTACH THE
MOUNTING
BRACKET

SNAP RECEIVER 
ONTO BRACKET

MOUNTING NOTES:

1. WHEN USING THE LOCAL WHIP 
ANTENNA, MOUNT RECEIVER AS HIGH 
AS POSSIBLE FOR BEST RADIO RANGE

2. WHEN USING THE LOCAL WHIP 
ANTENNA, KEEP RECEIVER AWAY 
FROM METAL OBJECTS THAT CAN 
DECREASE RADIO RANGE BY 
SHIELDING THE SIGNAL

3. IN ALL INSTALLATIONS, KEEP 
RECEIVER AND ANTENNA AWAY FROM 
MOTORS, FANS AND OTHER 
ELECTRICAL DEVICES THAT MAY 
CAUSE INTERFERENCE AND REDUCE 
RADIO RANGE

BY

PRINTER’S INSTRUCTIONS:

INSTR,INSTL,DX-COKIT - LINEAR P/N: 228124 A - INK: BLACK - MATERIAL: 20 LB. MEAD BOND - SIZE: 11.000” X 8.500” - SCALE: 1-1 - SIDE 1 OF 2

RIGHT

CENTRALLY LOCATE RECEIVER

OR ANTENNA

WRONG!

TRANSMITTERS AT THE OTHER END OF

HOUSE MIGHT BE TOO FAR AWAY

BASEMENT

RCVR

RIGHT

MOUNT RECEIVER OR ANTENNA AS

HIGH ABOVE EARTH LEVEL AS POSSIBLE

BASEMENT

RCVR

WRONG!

LOCATING A RECEIVER OR ANTENNA

BELOW EARTH LEVEL WILL IMPAIR RANGE

90% - 100%

OF FULL POWER

65% - 95%

OF FULL POWER

10% - 70%

OF FULL POWER

WALLBOARD AND

WOOD STUDS

CONCRETE WITH STEEL

REINFORCEMENT OR

METAL LATH AND PLASTER

LIGHT CONCRETE

OR BRICK

CONSTRUCTION MATERIALS WILL EFFECT RADIO RANGE

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