Speed Test Replacement Vial

Excellent

Fantastic! 1 testing tube was crushed during shipment. I contacted customer care and within 1 hour, they responded to my email and shipped another replacement tube out. To my surprise, when I opened the shipment, they sent an extra replacement tube at no charge. I will order from them from now on!

Works perfect!

Awesome makes testing to simple

Does not work

Extremely poor unfortunately, unit . I email customer service two days agobut have not heard anything back.