Staplex M-30A 初级电子空气流量校准器 (100 cc -30 LPM)

Recharge/run 220 volts AC; 50-60 Hz

Range 100 cc to 30 LPM

Rates up to 30 LPM 

4 digit LCD with an accuracy and repeatability of ± 0.5% 

Operates for up to 8 hours from built-in rechargeable batteries or continuously from a plug-in AC adapter/charger (included)

Dimensions: 5-1/2" x 6" x 2-1/2" (14 cm x 15.2 cm x 6.4 cm).

Weight: 32 ounces (.9 kilos).