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Fieldpiece Instruments - SCM4 - Carbon Monoxide Detector

Item: SCM4

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About This Product

Product Info


Fieldpiece - 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.

How to use:
  • 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
Features and benefits:
  • 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


Weight0.5 Pounds (lbs)
Width6 Inches (In)
Height9 Inches (In)
Country of OriginTWN
Length2 Inches (In)
Accuracy73°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
Alarm SettingNone
ApprovalsC-Tick, CE
Audible AlertYes
Auto Power OffYes
Calibration CertificateYes
Carbon Monoxide Measurement Range0 to 1000 ppm; 0 to 2000 ppm (less than 5 minute exposure time) Initial Acc
Charging Power Supply9V battery
Color AlarmsGreen LED
Data HoldYes
Digital ReadoutYes
Display OptionsBacklight
IncludesOriginal item only
Includes CaseNo
Low Battery IndicatorYes
Maximum Working Temperature122°F (50°C)
Measuring RangeNone
On/Off SwitchYes
Operating HumidityNone
Operating Temperature Range32°F to 122°F (0°C to 50°C)
Power Source9V Battery
Probe LengthNone
Rechargeable BatteryNo
Recommended Calibration CycleTo zero, hold the ZERO button for one second or until “ZERO” is displayed. (Note: For safety reasons the SCM4 will not zero if reading is above 5ppm.)
Response TimeSeconds
Temperature Range32°F to 122°F (0°C to 50°C)
Test ButtonNo
Warm-up Time10 Seconds
Warranty OfferedYes


Equipment Part List

*Valid thru October 31, 2018 at participating locations only. All discounts reflected in current pricing. Select items only. Excludes accounts with special pricing. Offer cannot be combined with other offers or programs. While supplies last. No rainchecks allowed. Not valid on previous purchases. Management reserves the right to modify or end this promotion at any time. Call your local sales center for details.
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