The WS4933 is designed to monitor the CO gas level
in residential dwellings and give early warning before
potentially dangerous levels are detected. This device
is intended for use with a compatible wireless alarm
system.
The detector consists of an electrochemical carbon
monoxide sensor assembly coupled to a wireless trans-
mitter. The Wireless Carbon Monoxide Alarm com-
municates with the control panel and can send alarm,
tamper and battery condition messages to the system’s
receiver.
Caution:
The detector expiry date is stamped on the
detector. After the expiry date, the detector should
not be used - do not wait for end-of-life indication!
Figure 1: WS4933 Wireless CO Detector
Legend
A. Alarm LED (see Table 1 for LED indications)
B. Test/Hush button
C. Battery compartment
CAUTION: Unauthorized removal of the unit
from the bracket will initiate a tamper alert.
Warnings:
The WS4933 Series wireless Carbon Monoxide
detector shall be installed and used within an envir-
onment that provides the pollution degree max 2 and
overvoltages category II in NON HAZARDOUS
LOCATIONS,
indoor
only.
The
equipment
is
designed to be installed by SERVICE PERSONS
only; (SERVICE PERSON is defined as a person hav-
ing the appropriate technical training and experience
necessary to be aware of hazards to which that per-
son may be exposed in performing a task and of meas-
ures to minimize the risks to that person or other
persons.)
Failure to properly install, test and maintain a CO
detector may cause it to fail, resulting in loss of life.
Installation of the CO detector should not be used as a
substitute for proper installation, use and maintenance
of fuel burning appliances, including appropriate vent-
ilation and exhaust systems.
This carbon monoxide detector is designed for indoor
use only. Do not expose to rain or moisture. Do not
knock or drop the detector. Do not open or tamper
with the detector as this could cause malfunction. The
detector will not protect against the risk of carbon
monoxide poisoning if not properly installed.
CAUTION: This device will only indicate the pres-
ence of carbon monoxide gas at the sensor. Carbon
monoxide gas may be present in other areas. This car-
bon monoxide alarming device is designed to detect
carbon monoxide gas from ANY source of com-
bustion. It is NOT designed to detect smoke, fire or
other gases unless the product has been investigated
and determined to comply with applicable require-
ments.
Installation Instructions
Battery Installation
To replace the battery:
1.
Remove the detector from its mounting base by
twisting it counterclockwise. Remove and dis-
pose of the battery according to your local reg-
ulations.
2.
To ensure proper power-down sequence, wait a
minimum of 20 seconds before installing the
new battery.
3.
Install a new 3-volt CR123A Panasonic Lithium
battery in the battery compartment observing
correct polarity. If the battery is incorrectly
inserted, remove gently with a non-conductive
tool and correctly reinsert.
4.
Reinstall the detector onto the mounting base by
turning it clockwise.
5.
After the power-up sequence, the green LED
should blink once every 12 seconds to indicate
normal operation. If the battery is not installed
correctly, the detector will not operate and the
battery may be damaged.
Enrollment
At the alarm control panel, program the 6-digit serial
number of the WS4933 (located on the back of the
detector). Please refer to your control panel install-
ation manual for details.
Selecting a Location
Selecting a suitable location is critical for the CO
detector. The Consumer Product Safety Commission
(CPSC) recommends to use at least one CO detector
per household, located as near as possible to sleeping
areas of the home, because the human body is most
vulnerable to the CO gas effect during sleeping hours.
1
WS4933 (433MHz) Series Wireless Carbon Monixide
Detector
Installation and Operating Instructions
Read these instructions thoroughly before installation and use of the WS4933
