Limited stock. eBay with vipoutlet has the open box Wyze Home Security Core Kit (WSHMS-6M) on sale for $51 - 10% off with coupon code VIPOUTLETMAY26 [Exp 5/31] = $46 with free shipping.

Cnet called it The Best Budget Security System. Includes the Wyze Sense Hub, Keypad, 1 Motion Sensor,  and 2 x Entry Sensors. Monitoring service is $9.99 per month (no contract required).