Dissolved oxygen DO The analyzer can measure dissolved oxygen, saturation, oxygen partial pressure, etc., and is versatile; Widely used in industrial wastewater treatment applications such as sewage tanks, aeration tanks, pulp tanks, sedimentation tanks, etc.Taiwan, China HOTEC The dissolved oxygen controller is a precision controller developed and designed by countrymen, which is applicableUsing larger scales in any location LCDLCD display（0.8'）Can withstand temperatures up to90 ℃ is not availableTurn black. Taiwan, ChinaHOTECThe principle of dissolved oxygen electrode detection is to use(Galvanic cell) Direct current voltage method,No polarization voltage is required, (Polarized voltage type electrodePolarization time is required as long as the power is turned on,It will take about 20 minutes of polarization time,A relatively large cathode can measure the dissolved oxygen value at low flow rates (Min.1cm/sec). A relatively thick film that is less likely to break (replacement takes about 3 months). A relatively large electrolyte storage cup does not require frequent replacement of the electrolyte (approximately every 3 months). The anode is replaceable (approximately 3 months) and easy to operate. Suitable for various places, such as cooling water, aquaculture, wastewater, and industrial processes.