The RANDFAN-SX Radon operates as a simple stand alone radon sensor controller to activate Radon mitigation fans and devices, fan controller, and alert staff. The RANDFAN-SX will measure airborne radon as free Radon gas (with or without Radon Daughters at user’s option) below 1 pCi/l. All data is stored.
 · VERIFIES NEED FOR RADON MITIGATION DEVICES 
· WIDE RANGE - DIGITAL ACCURACY 
· SENSITIVE FOR OCCUPATIONAL EXPOSURE 
· BLOCKED AIR INTAKE ALARM 
· BUILT-IN COMPUTER INTERFACE 

All instruments are calibrated at the factory. Calibration check may be performed in the field with a microCurie level BetaGamma source. Chamber may be checked for linearity of response on a Gamma calibration range. User friendly calibration controls are provided.