Best Modules will be closed from January 22, 2020 to January 29, 2020 for the Lunar New Year holiday.
Orders placed after 16:00 Taiwan Time (UTC+8) on January 20, 2020 will not be shipped until January 30, 2020.

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2019/11/27   New Product Calatog   
The updated product catalog is now online. Please click here to read.
2019/10/7   New Shipping Method: Postal Service   
Postal service is now added to our shipping method. Compared with express delivery, the postal service is less expensive but takes longer. The delivery quality of the two is the same stable and reliable (both methods are trackable). We now provide three shipping methods: express delivery, postal service, and use your own courier account to pay the shipping fee. Please note that postal service is limited to packages less than 2kg in weight.
2019/9/20   New Product Release: TDS modules and TDS Display Board   
Have you measured the water quality of your drinking water or aquarium? Just need a small water quality tester (TDS pen). TDS is the most commonly used method for measuring water quality. Holtek’s new TDS Workshop (TDS product development platform) allows you to generate MCU programs in a few steps. With the TDS modules, you can immediately start measuring without code modification. The platform can also display the real-time measurement results and export the data to an excel file. Depending on the MCU used, three TDS modules are provided: 66F0176, 66F0185, and 66F019 (need one of the three). Plus, the TDS Display Board (required) is needed for connecting to the development platform. Awesome? Go for downloading the TDS Workshop.
Click here to  Download Product Catalog
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