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050171型哈氏槽计时器
哈氏槽实验通用型计时器，两个三相插头接口，8"大字指针式，定时
Model 171
220V输入电压
110V输入电压型可选购
Universal Timers GraLab,s Universal Timers feature an 8" dial with large numerals for elapsed time. Two separate 3-wire outlet receptacles are provided for automatic switching of external appliances. Used for Hull Cell Test timing as well as general laboratory timing uses.
Timer, Gralab Model 171, 220 Volt (050171/220)