The Pro Series3 Digital Radon Detector Features:

• Numeric LED display range of .1 to 999.9 shows the radon level of radon gas in pCi/L
• Short-term reading displays the average radon gas levels over the past 7 days
• Long-term reading displays the average radon levels since powered-up or last reset with a maximum reading time of 5 years.
• Upon initial power-up, short-term and long-term radon test results will display after the first 48 hours
• Audible alarm sounds if the long-term average reaches 4 pCi/L or greater or the short-term average stays above 4 pCi/L for 30 consecutive days
• Radon monitor samples air continuously with the display updated every hour.
• Conducts a failsafe self-test every 24 hours with an error code displayed if there is a failure.
• Menu button controls 4 functions.
  
  1. Switch between the short-term and long-term display, indicated by a green LED illuminated next to the S or the L
  2. Conduct a manual test of the radon detector.
  3. Mute or reactivate the audible alarm if the detector is in an alarm state.
  4. Clear and reset the memory of the radon gas detector to begin new readings.
• 10' power cord allows user to locate detector away from walls, windows and doors
• Dimensions: 4.7" x 3.1" x 2.1". 
  
• Weight 12 ounces.
• ETL Certified to UL and CSA standards.

Click here for...SPECIFICATIONS of the PRO 3 Digital Radon Gas Detector