SCM4 – Carbon Monoxide Detector

Get real-time results.

Field-replaceable CO sensor
Calibrate to ambient quickly with the ZERO button
Audio/visual alarms with mute
Fast electro-chemical sensor
Magnetic hanger for hands free

The SCM4 Carbon Monoxide (CO) Detector has a very fast reaction time, and measures CO in parts per million (ppm). Its electrochemical sensor is fast enough for walk-around tests. Features and benefits include: Field-replaceable CO sensor; Advanced three-pin sensor measures 0 to 1000 ppm CO; Calibrate / Zero SCM4 to ambient quickly with the ZERO button; Audio and visual alarms w/mute; Bright-blue, backlit dual-display with MAX and real-time measurements displayed; Magnetic hanger for hands-free operation; Auto Power-Off (APO).

The “Walk-Around” Test:  The SCM4 responds to changes in CO levels in real time.

•  Zero the unit outdoors away from any source of CO (will not zero if CO levels are higher than 5ppm)
•  Enter the structure
•  Walk around and watch the display
•  Move toward the area of highest concentration to find the CO source

The SCM4 Carbon Monoxide Detector (CO Detector) offers several features and benefits to field technicians:

•  Field-replaceable CO sensor
  – Easy to install
  – Lasts approximately two years
  – Comes pre-calibrated
•  Fast electrochemical sensor helps you find CO sources like cracked heat exchangers or breached flue stacks
•  Calibrate to ambient quickly with ZERO button
•  Audio and visual alarms (with MUTE function)
•  Alarm rate increases as carbon monoxide concentration increases
•  MAX hold to help you zero in on the source
•  Bright-blue backlit dual-display to test in dark crawl spaces
•  Magnetic hanger for hands free testing
•  Auto Power Off (APO) to save battery life (easy to disable)
•  Battery check with % of battery life left displayed

Includes:

• Carbon Monoxide Detector – SCM4
• 9V Battery (installed)
• Operator’s Manual

Specifications

• Sensor Type: Electrochemical (specific to CO)
• Sensor Calibration: Factory calibrated @ 17ppm CO and 200ppm CO
• Range: 0 to 1000 ppm; 0 to 2000 ppm (less than 5 minute exposure time)
• Initial Accuracy: @ 73°F±9°F, <75% R.H.
  0-15ppm ±5% reading ±1 ppm after zeroing
  16-35ppm ±5% reading ±2 ppm after zeroing
  36-1000ppm ±5% reading ±5ppm after zeroing
• Long Term Drift: less than 5% per year (depending on use)
• CO Air Sample Temperature Range: 32 to 105°F
• Operating Environment: 32 to 122°F (0 to 50°C); 15 to 90% R.H., non-condensing
• Storage Environment: 32 to 68°F (0 to 20°C) at <80% R.H. with battery removed from meter
• Battery: 9V
• Battery Life: 150 hours typical alkaline
• Auto Power Off: After 15 minutes

 Carbon Monoxide Detector