Home Radon Meter Detector 2Bq to 20kBq/m³ Rechargeable Color LCD Display Accurate Detection Easy to Use Dual Usage Modes Prompt Adjustments Place It Anywhere Two Alarm Settings Product Colour: Black,Sensor Type: Ionization Chamber Sensor ,Measuring Range: 2Bq to 20kBq/m³ (0.054 to 540pCi/L) ,Response Time: 10 minutes ,Item Model Number: RM-73 ,Detection Accuracy: ±10% ,Product Dimensions: 3.54 x 3.54 x 5.91 in/90 x 90 x 150 mm,Net Weight: 0.79 lbs/0.36 kg ,Data Update Time: 10 minutes ,Main Material: ABS