Fast CO Detection You Can Trust
The Fieldpiece SCM4 Carbon Monoxide Meter is your go-to tool for accurate, real-time CO testing. Whether you're tracking cracked heat exchangers or checking flue stacks, this compact meter gives you reliable ppm readings with walk-around flexibility.
Top Features
- ✅ Real-time CO readings from 0 to 1000 ppm
- ✅ Fast-response electrochemical sensor – ideal for walk-around tests
- ✅ ZERO button lets you calibrate to ambient quickly
- ✅ Audio & visual alarms (with mute function)
- ✅ MAX Hold mode helps you pinpoint the CO source
- ✅ Backlit dual display – perfect for dark areas
- ✅ Magnetic hanger for hands-free testing
- ✅ Auto Power Off to save battery (can be disabled)
Built for Field Technicians
Designed for HVAC professionals, the SCM4's field-replaceable sensor (RCM4) is easy to swap out and comes pre-calibrated. With normal use, sensors last about 2 years. Great for chasing down dangerous CO leaks quickly and safely.
🚶 Walk-Around CO Test
- Zero the meter outside (away from any CO source)
- Enter the structure and walk through the space
- Watch the real-time display for CO spikes
- Use MAX mode to find the highest reading zone
- Locate the likely source of the leak
Technical Specifications
- Measurement Range: 0 to 1000 ppm CO
- Sensor: Electrochemical, 3-pin design
- Battery: 9V (included)
- Display: Dual-backlit screen with MAX and live readings
- Auto Power Off: Enabled (can be disa