Misuratore di portata massa gas digitale ossigeno gas aria portata tester misuratore di portata 0~20L/250L
CO² and Argon gas needs customization. Display unit Instant flow rate: SLPM(L/min); Flow accumlation: NCM(m3). Flow range 0-20L/Min 0-250L/Min. Working temperature -10～ +55 ℃. - Ultra low power by batteries or optional external AC adaptor.