Optical Dissolved OxygenOptical Dissolved Oxygen still uses a probe to measure the dissolved oxygen, but instead of monitoring a reaction, the probe and meter monitor luminescence. Simply, there is a blue light emitted by the probe, and the blue light excites the light sensitive material in the prob

Dear Customers,Kindly informed that our company is scheduled for the 1day New year holiday (Jan.1, 2020), and then 12 days holidays. Happy New Year! All best wishes from Fuzhou Probest Water sensors manufacturer. And the holidays are from Jan.20 to Feb. 1, 2020 (Saturday) for Chinese New Year