1byone Products via Amazon offers the 1byone Upper Arm Blood Pressure Monitor in White or Black for $25.99. Coupon code "RT7ARQBC" cuts it to $21.83. Plus, Prime members grab free shipping. (Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping costs $5.78.) That's the lowest total price we could find by $8. It features a backlit LCD, hypertension and irregular heartbeat alerts, and one size fits all cuff. It uses four AAA batteries (not included). Deal ends November 30.