LH-D9 portableoptical do meter mainly for the convenience of the user to carry to the site operation. Optical do meter can be divided into the sensor and the electronic unit two parts. The sensor adopts the polarographic coated type dissolved oxygen electrode. Electronic unit for high integrated circuit. Optical do meter USES dot matrix LCD display, can display values of dissolved oxygen and temperature.
Displayed when measuring results are stable
Restore factory settings
Barometric Pressure Unit
Dissolved Oxygen Unit
Auto Temperature Compensation
1.How about the shipping?
1) For sample order,it would sent by express company like UPS,Fedex,TNT etc.We have strong cooperation with them and if you have express collected account, you will no need pay us.
2) For bulk order,it would sent by sea.We have our cooperation forwarder and you also can use your OWN forwarder.
2.Could your company accept OEM/ODM?
Yes, all goods can be custom made as your requirements(including Logo print,packing,etc.)
3.What should I do if I do not know how to use?
Dear customer, please do not worry, manual user will be sent together, you can also contact us with more technological support.
4.What about the technical support and maintenence?
Sometimes users will get some problems when they operate the instruments which are unfamiliar or first time use, users can send us emails or call us about detailed information. We will provide users solution or operation video.
For so many years’ experience, our instruments works well during warranty period. If there any parts are broken during warranty period, we would like to provide spare parts for free.