1.  Pressurized Ion Chamber
2.  Range: Background to 50 mSv/h (5 R/hr)
3.  Shows Exposure Rate & Either Integrated Exposure or Peak Exposure Rate
4.  Sunlight Readable Color Display
5.  Auto-Zeroing & -Ranging
6.  Rechargeable Batteries
7.  Audio & Visual Alarms
8.  Data Logging
9.  USB Connectivity
10.  Free Firmware Updates Through Website