Cal Check Advantages:

• Meets new PS1 Requirements (ASTM D6216-03)
• Helps comply with regulations
• Isolates the monitor from stack
• On-stack testing using filters
• Unparalleled customer support and service

Products:

   • Test Filters
   • Cal Check 101Z
   • Cal Check 101
   • Cal Check 301
   • Cal Check 401
   • Cal Check 402
   • Cal Check 501
   • Cal Check 701

Monitor Labs ML541

Updated design for the newer Monitor Labs 541 monitor, the 402 device installs into the dirty window indicator port and fastens with four fasteners. Allows insertion of test filters for upscale checks. The iris is easily adjustable by lever.

• The 402 uses Cal Check Type 2 test filters.