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.
此功能有助于節省電池。也可以手動關閉。
可根據客戶要求配套校準溶液（液體溶液或粉末）及各種包裝。
技術規格：
模型
PH-907