- Release date: September 2011
- Added Data Menu item to view previous sample results on the display. Models J405-0005 and J405-0006 (W\out Comm.) can view only the last two tests. Models J405-0007 and J405-0008 (W\ Comm.) can view all stored test data.
- Fixed failure to charge if J405 is switched off and charger is plugged in, along with erroneous battery fault messages.
- Fixed 4-20mA bug that could cause output for first sample after power up to be 4 mA too high.
- Readings above 999 ug/m3 are displayed as High Concentration as intended in the stored data.
- Moved contrast adjustment from Factory menu to customer System menu.
- Added 3.5 mA output to 4-20mA current loop to signal when the instrument is powered off.
- Sensor Regenerations are recorded in the sample history.
- Auto-sample, manual sample, dosimeter sample types are now distinguished. However, the dosimeter functionality is not currently available for the J405.
- Changed the sample time from 12 to 17 seconds to improve precision at low levels.