在线观看视频黑牛视频,久久99精品亚洲乱码三区,亚洲精品无码久久久久不卡,91久久精品一区二区三区,国产午夜片无码区在线观看,欧美精品久久天天躁

High-precision laboratory pH/ion meter, suitable for measuring pH, ORP, ion concentration and water hardness, 1 to 5 points calibration, setup menu contains 18 options, accuracy 0.5% F.S.

High-precision laboratory ion meter with 5 ion concentration measurement methods, 2 to 5 points calibration, setup menu contains 15 options, accuracy 0.5% F.S.

Professional benchtop pH/ISE meter, 1 to 5 points calibration, selectable ion concentration units, setup menu contains 12 options, accuracy 1% F.S.

Professional benchtop ammonia ion meter for laboratory applications, range 0.01 to 17000 ppm.

Professional benchtop ammonium ion meter for laboratory applications, range 0.1 to 18000 ppm.

Professional benchtop bromide ion meter for laboratory applications, range 0.4 to 81000 ppm.