Extech DO700 Portable Dissolved Oxygen Meter Kit. 9in-1; DO pH mV TDS Salinity Temp etc.
特制 用于测量 酸度，PH 包括 电池，校准溶剂，箱子，传导单元，膜盖帽，探头，溶剂，温度电极
得捷:
PH/MV/TEMP/COND/TDS/DO METER
贸泽:
Environmental Test Equipment PORTABLE DISSOLVED OXYGEN METER KIT
TME:
Dissolved Oxygen, Conductivity, TDS and pH Meter; 120x65x31mm
MASTER:
Portable Dissolved Oxygen Meter
Electro Sonic:
Portable Dissolved Oxygen Meter
