WS4933 - DSC Wireless Carbon Monoxide CO Detector

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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 DSC wireless alarm system. (PowerSeries Panel V4.5+; RFK Keypad V1.2 +; RF5132-433: V5.1+)
The detector consists of an electro-chemical 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’s receiver.

Brand: DSC
Part Number: WS4933

Availability: In stock




Colorless, tasteless, odorless but deadly, carbon monoxide (CO) is impossible to detect without a warning device. The DSC WS4913 wireless carbon monoxide detector provides frontline protection against the silent threat of carbon monoxide poisoning.
  • Slim-line design
  • Built-in 85dB alarm at 10 ft (3 m)
  • Malfunction supervision
  • Low sensitivity supervision
  • Electrochemical sensing technology
  • Transmits RF status, low battery and tamper condition
  • Hush feature
  • Wall tamper
  • 4-5 year battery life
  • Onboard LEDs indicate:
    * Red – Alarm
    * Yellow – Trouble
    * Green – Power
    * Amber – Warm Up
  • End-of-Life (EOL) indicator (5 year)
  • Low battery supervision
  • Compatible with Alexor , Impassa and PowerSeries v4.5 & higher

Additional Info

Additional Info

Part Number WS4933
What's in the box (1) WS4933 DSC Wireless Carbon Monoxide CO Detector
Variant No


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End of life: 7 years (see date stamped on back of detector)

Operating frequency: 433MHz

Audible signal (temp 4 tone): 85 dBA min. in alarm (at 10ft (3m))

Operating current: 10 μA

Temperature range: 0°C to 40°C (32°F to 104°F)

Operating humidity range: 15% to 95% Relative Humidity, non-condensing

Transmitted messages: CO gas alarm, low battery, tamper, trouble message as a result of sensor end of life or sensor trouble, supervision.

Power source: One 3-volt CR123A Panasonic Lithium Battery (included)

Battery supervision: Automatic transmission of battery status data as part of any transmitted message.

Battery life expectancy: 5 years (under typical use). Note: Constant exposure to temperature or humidity extremes may reduce battery life.

Low battery threshold: 2.3 V