Features an advanced galvanic oxygen sensor capable of measuring oxygen concentrations ranging from 0.05% to over a 36 month operating life with no periodic maintenance required menu driven controls integral flow meter and a full range of analog outputs. Optional temperature control enhances stability 采用了的电化学氧传感器能够测量氧气浓度范围从0.05%到在36个月的使用寿命，无需定期维护，菜单驱动的控制。可选的温度控制稳定性增强。
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请输入计算结果（填写阿拉伯数字），如：三加四=7 