Carbon Monoxide Monitor Comparison

UL Listed Alarms
Other Low Level Monitors
NSI 3000
Low Level Monitor
Professional grade sensor   *  
1st visual readout at 5 ppm within 30 seconds  
Low audible alarm level at 15 ppm after 5 minutes
High level audible alarm at 35 ppm after 5 minutes
Crisis audible alarm level at 70 ppm after 30 seconds **
Manual silence button at low levels
Cannot be silenced at crisis levels
Protection for all ages
Digital memory with recall *
Continuous on-screen display
Digital CO readout   *
CO display range from 5-999 ppm
Battery operated   *
Can be installed at eye level   *
Can be converted to tabletop use
Sensor can be checked with match smoke
User response instructions printed on unit
Minimum 5-year warranty
Maximum protection for all age groups
Notes: ppm = parts per million      ** – Allowed to take up to 240 minutes to alarm      * – Available only on a few models