Will Surety be carrying these? If so how much will they be?
If not, where will they be sold and does anyone have pricing info?
http://resolutionproducts.com/wp-content/uploads/2017/06/PIR-Data-Sheet.pdf
No, that product would not be carried by suretyDIY as it is not compatible with any Alarm.com compatible system. That is for use with the Resolution Helix system. All RE6XX sensors are Helix compatible.
I do not know if they would release similar models for other manufacturer radio frequencies, but we can check with Resolution and post any feedback here.
Outdoor motion detectors for Honeywell compatible systems can be found from various vendors. Look for the 5800PIR-OD.