The WS4933 is designed to monitor the CO gas level in residential dwellings and give
early warning before dangerous levels are detected. This device is intended to be used
with a compatible wireless alarm system. The detector consists of an electrochemical
carbon monoxide sensor assembly coupled to a wireless transmitter.
The Wireless Carbon Monoxide Alarm communicates with the control panel and can
send alarm, tamper and battery condition messages to the system 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!
CAUTION: Unauthorized removal of the unit from the mounting bracket will
initiate a tamper alert.
Warnings
The WS4933 wireless Carbon Monoxide detector shall be installed and used within an
environment that provides the pollution degree max 2 and overvoltages category II in
indoor, non hazardous locations only. The equipment is designed to be installed by
skilled persons only (skilled person is defined as a person with relevant education or
experience to enable him or her to identify hazards and to take appropriate actions to
reduce the risks of injury to themselves and others).
Failure to properly install, test and maintain a CO detector may cause it to fail, res-
ulting 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 ventilation and exhaust systems.
This carbon monoxide detector is designed for indoor use only. Do not expose it 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 presence of carbon monoxide gas
at the sensor. Carbon monoxide gas may be present in other areas. This carbon
monoxide alarming device is designed to detect carbon monoxide gas from any
WS4933 (433MHz) Wireless Carbon Monoxide Detector
Installation and Operating Instructions
Read these instructions thoroughly before installation and use of the WS4933.
source of combustion. It is not designed to detect smoke, fire or other gases
unless the product has been investigated and determined to comply with applic-
able requirements.
Figure 1: Wireless CO Detector
B
A
Legend
A. Alarm LED (see Table 1 for LED indications)
B. Tamper release opening
C. Test/Hush button
D. Battery compartment
E. Breakaway tab (see Figure 3)
C
D