USB Thermometer

Digital thermometer probe with USB connection, based on DS18B20 1–wire probe and USB bridge interface (PL-2303TA or CP2102), provides 9-bit to 12-bit temperature measurements. Each thermometer has an unique 64-bit serial code stored inside ROM.

Perfect solution for monitoring air temperature at home, in a greenhouse or in a server room. Measurements are more accurate since the probe is not in the same housing as the USB plug. Despite probe's wide measuring range it is advisable its usage between –20 and +85 degrees Celsius. Unit of readout value (Celsius or Fahrenheit) depends on software used.

Technical data


Here are listed default values, depending on used USB bridge interface.

These values could be changed on request: put probe on longer cable, or make it waterproof by putting it inside a stainless steel or copper tube.

More information

Drivers and software

Picture of normal version

USB Thermometer normal version product image picture of waterproof (stainless steel) version, picture of waterproof (copper) version


Technical support is available on mail support@[this domain].

Windows 10 compatible python library available nodejs library available c support available


Thermometer (PL-2303TA, normal: indigo plug and 82 cm cable, waterproof: black plug and 92 cm cable) could be ordered securely online with PayPal. Orders with value greater than 15 EUR or 18 USD will be shipped as registered mail (with tracking), otherwise 1 EUR or 1.5 USD will be refunded and shipped as priority (airmail). Shipping is flat rate (does not depend on the number of items ordered).

Due to a temporary suspension of mail service to some countries, please write to order@[this domain] to review delivery options.