1 pack:
https://www.amazon.com/Motion-Sen…B01MQ1HSO
Price before coupon: $11.58
Coupon code: P4K9IACH
Price after coupon: $7.80
2 pack:
https://www.amazon.com/Motion-Det…B0784FVC3
Price before coupon: $18.58
Coupon code: IJ2PQZLZ
Price after coupon: $12.99