Waterproof outddor driveway intrusion alarm. Two sensor and one home base unit.
Offered by Amazon for $227 with ONE sensor only. Additional sensor is offered for another $100 if someone wants to have an additional one like I did.

My price is half price: $150. No negotiations or lowballing. Cash only. Local pickup in Muskoka,
Here is the reference link:
https://www.amazon.ca/dp/B00HFZUKGM?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_2&th=1
When you call please mention you found this ad listing on OKz.ca