目錄:上海鉑勒機電設備有限公司>>水質分析儀器>>其他水質分析儀及配件>> 6188401
he NO3D calibrated sensor cartridge should be replaced approximay twice a year （in typical operating conditions）. Cartridge replacement only takes minutes - just remove the old cartridge, plug in the new, and enter the sensor code. CARTRICAL technology calibrates each electrode individually as well as calibrating all three electrodes to each other.
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