Amazon.com: PiKo-1 Electronic Peak Flow Meter and FEV1 Meter: Health & Personal Care

December 3, 2016

https://www.amazon.com/PiKo-1-Electronic-Peak-Flow-Meter/dp/B0002W2A1I

Piko-1 Digital Lung Function FEV-1

http://www.quickmedical.com/downloads/nspire-piko1_manual.pdf

takes 2
type 357 silver oxide button batteries

Advertisements