防水型PCSTestr 35 pH/电导/TDS总固体溶解度/盐度/温度 测试笔 带ATC; (精度±0.01 pH; 0 - 200.0 µS/cm; 0 - 2000 µS/cm; 0 - 20.00 mS/cm; 0 - 100.0 ppm; 0 - 1000 ppm; 0 - 10.00 ppt; 0 - 100.0 ppm; 0 - 1000 ppm; 0 - 10.00 ppt; 0 - 1.00%)，PCSTEST35，奥立龙，Orion