r and more accurate data, the operation is very simple, avoiding the need to adjust the potentiometer simulator calibration, and to repeated verification of trouble.
This tester will automatically power down 4 minutes after the last key press.
此功能有助于节省电池。也可以手动关闭。
可根据客户要求配套校准溶液（液体溶液或粉末）及各种包装。
技术规格：
模型
PH-907