| | DWYER P8-15流量开关 | 15 | ￥1560.00 | ￥1560.00 | | ￥1560.00 |  |
| | Ashcroft B4-24-B-06-XCY-1000# 压力开关 | 20 | ￥2010.00 | ￥2010.00 | | ￥2010.00 | |
| | Ashcroft APANSDLS02 5000PSI 压力开关 | 17 | ￥1735.00 | ￥1735.00 | | ￥1735.00 | |
| | Ashcroft APANSDLS02-15/15# 压力开关 | 21 | ￥2130.00 | ￥2130.00 | | ￥2130.00 | |
| | Cole-Parmer 912018 压力/真空皮拉尼型传感器 | 16 | ￥1661.00 | ￥1661.00 | | ￥1661.00 | |
| | Cole-Parmer®低流量关闭耦合泵，最大流量为20加仑，1“软管端口3600 RPM的电机，12 VDC，316不锈钢 | 31 | ￥3113.00 | ￥3113.00 | | ￥3113.00 | |
| | Ashcroft APANSDLS02 100PSI 压力开关 | 19 | ￥1910.00 | ￥1910.00 | | ￥1910.00 | |
| | Dwyer A3000-0 压力开关/仪表 | 27 | ￥2770.00 | ￥2770.00 | | ￥2770.00 | |
| | Cole-Parmer 氯分析仪，120V | 758 | ￥75812.00 | ￥75812.00 | | ￥75812.00 | |
