40 CFR 60, PS-1-Compliant Opacity Monitors
EMS has taken the approach to design our products with accuracy, reliability, and serviceability in mind. Our EPA-compliant monitors are built with the highest-quality optics and matched with an industry-leading warranty and support. Our EPA-compliant opacity monitors are guaranteed to exceed EPA 40 CFR 60 Performance Specification 1 for opacity monitors and ASTM D 6216.
EMS EPA-compliant opacity monitors are designed to be the optimal choice for various applications. Customers worldwide have relied on our monitors for over 30 years, from power-generating facilities to paper mills and cement plants.

EMS WatchDog PS-1
- 40 CFR 60 PS-1 and ASTM D 6216 Compliant
- Meets PS-11 Requirements
- RS485, Modbus Communication, Optional Ethernet and Wireless
- Dual-Beam Measurement
- Lifetime LED Source Replacement Warranty
- Intuitively Designed 4.3″ Color Touchscreen User Interface
- 5 Numeric Display Screens and 3 Trend Display Choices
- Real-Time Diagnostics for Testing Outputs and Relays
- Automatic or Manual Online Calibration
- Easy-to-Read Color-Coded Fault Screen
- User Display Customization Available
- Optional Premium Controller
Contact us for more information about how EMS can assist your company in remaining compliant with local environmental regulations.
