The Overhoff Radon Monitor is a hand-held portable instrument that measures airborne radon-222 and radon-220 over a wide range of concentrations with a very fast response time and excellent sensitivity. This radon monitor is useful to those individuals who need to quickly establish radon background levels, demonstrate compliance with local regulations, or for radon mitigation efforts. A large 300cc ionization chamber detector is used to measure below the US EPA’s recommended radon mitigation limit of 4 pCi/L in as little as a few minutes.
The Overhoff Radon Monitor can log 40,000 data points to accurately establish the daily variation in radon concentrations. The radon monitor’s internal rechargeable battery can operate the monitor for 24 hours. By using the AC/DC adapter, the monitoring time can be extended indefinitely which allows for logging the variations in radon concentrations due to the environmental effects of changes in barometric pressure and rainfall.
The Overhoff radon monitor is extremely fast, accurate, and reliable. The real-time measurement is especially useful for alerting personnel when radon levels rise or build up and for radon mitigation efforts. An upgraded alarm relay can be included to turn on radon mitigation ventilation systems when the alarm has exceeded the set-point. Mitigation of radon concentrations can be as simple as a change in ventilation flow or a more complex effort such as installing a vapor barrier.
|RADIATION DETECTED||Radon-220 and Radon–222 Alpha|
|DETECTOR||Pulsed Ionization Chamber|
|HOUSING||Weatherproof Rugged Design|
|DYNAMIC RANGE||0.1 to 2,000 pCi/L|
|UNITS||pCi/L or Bq/m3|
|SENSITIVITY||0.45 CPM per pCi/L|
|LINEARITY||0 To 2,000 pCi/L (less than 10% deviation)|
|OPERATING MODE||Air Circulation Via Pump|
|DATA STORAGE||40,000 Points|
|DISPLAY||Optrex Monochrome Graphic Display|
THREE MOMENTARY PUSH BUTTONS
|Alarm Preset Points, Manual Pump On/Off, Back Light|
|EXTERNAL OUTPUT||RS232 (Standard) and LAN (Optional)|
|POWER SUPPLY||Use 100-240VAC / 7.5VDC Adapter|
Or 3.6V / 7.4Ah Rechargeable Battery
24 Hr. Operating Capacity (Standard)
|DIMENSIONS (excluding handles)||10.7’’ Long x 7’’ Wide x 7.5’’ Tall|
|Accessories include||-Dust Filter|
-AC Power Converter
-Serial cable for connecting to PC and alarm annunciator