# 8 Channel Temperature Datalogger SD CARD DS18B20 8 Channel Temperature Datalogger Standalone SD CARD Bluetooth DS18B20 -55...+125C - **Seller:** [Olegs Bugrovs's store](https://lectronz.com/stores/krida_electronics), Riga, Latvia - **Price:** €50.99 (EUR, before shipping and taxes) - **Availability:** In stock - **HS code:** 857400 - **Product page:** https://lectronz.com/products/-8-channel-temperature-datalogger-sd-card-ds18b20 ## Links - [Documentation](https://drive.google.com/file/d/11RM_ZRh_RLBTka19vVRTwvdIfjIAl4wH/view?usp=sharing) - [Code](https://drive.google.com/file/d/11RM_ZRh_RLBTka19vVRTwvdIfjIAl4wH/view?usp=sharing) - [Design Files](https://drive.google.com/file/d/11RM_ZRh_RLBTka19vVRTwvdIfjIAl4wH/view?usp=sharing) ## Images ![8 Channel Temperature Datalogger SD CARD DS18B20](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MjY3ODMsInB1ciI6ImJsb2JfaWQifX0=--12b9a60b1b93f68126660010d94889fbcfecfb51/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2023-02-05T17-3A12-3A09.502Z-16.jpg) ![8 Channel Temperature Datalogger SD CARD DS18B20](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MjY3ODQsInB1ciI6ImJsb2JfaWQifX0=--cfa89978826823eb0951a8b98bbd90cd18e6972a/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2023-02-04T19-3A16-3A44.404Z-15.jpg) ![8 Channel Temperature Datalogger SD CARD DS18B20](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MjY3ODUsInB1ciI6ImJsb2JfaWQifX0=--65c5067c0be375413d458ba088442ac4b6cf9c98/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2023-02-05T17-3A12-3A09.502Z-17.jpg) ![8 Channel Temperature Datalogger SD CARD DS18B20](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MjY3ODYsInB1ciI6ImJsb2JfaWQifX0=--cb79e09d383c43c7ded4a5f5165d70dc0e8107f7/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2023-02-05T17-3A14-3A32.899Z-23.jpg) ![8 Channel Temperature Datalogger SD CARD DS18B20](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MjY3ODcsInB1ciI6ImJsb2JfaWQifX0=--6e0d98e7687f8931eb7806d6137d6d66d192a910/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2023-02-04T19-3A16-3A44.404Z-24.jpg) ![8 Channel Temperature Datalogger SD CARD DS18B20](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MjY3ODgsInB1ciI6ImJsb2JfaWQifX0=--50d05f3c838368024e3b9317fcb0322d5dac2b03/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2023-02-04T19-3A16-3A44.404Z-01.jpg) ![8 Channel Temperature Datalogger SD CARD DS18B20](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MjY3ODksInB1ciI6ImJsb2JfaWQifX0=--2c0fbc110836a4741d794ceea74ea3d87c60d1b4/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2023-02-04T19-3A16-3A44.404Z-04.jpg) ![8 Channel Temperature Datalogger SD CARD DS18B20](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MjY3OTAsInB1ciI6ImJsb2JfaWQifX0=--fee8f21b666583972d04672f7bab847815944625/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2023-02-04T19-3A16-3A44.404Z-07.jpg) ![8 Channel Temperature Datalogger SD CARD DS18B20](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MjY3OTEsInB1ciI6ImJsb2JfaWQifX0=--236b6aa794c60b792f46ee8b618c6688b9a0a3fc/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2023-02-04T19-3A16-3A44.404Z-09.jpg) ![8 Channel Temperature Datalogger SD CARD DS18B20](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MjY3OTIsInB1ciI6ImJsb2JfaWQifX0=--f460c4866e112d16a67691fa1d508447fd1ad45d/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2023-02-04T19-3A16-3A44.404Z-10.jpg) ![8 Channel Temperature Datalogger SD CARD DS18B20](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MjY3OTMsInB1ciI6ImJsb2JfaWQifX0=--caf17908463ab3fad26eeca4ba234eb2ed7838ca/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2023-02-04T19-3A16-3A44.404Z-08.jpg) ![8 Channel Temperature Datalogger SD CARD DS18B20](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6MjY3OTQsInB1ciI6ImJsb2JfaWQifX0=--7eefca1240eae8c58a31ce9d574d4c7c2c5f5923/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2023-02-04T19-3A16-3A44.404Z-11.jpg) ## Description **What is this?** This is 8 channel temperature data logger with measuring temperature range -55 … + 125 °Celsius or -67 … + 257 °Fahrenheit. This temperature data logger is fully standalone and not necessary connect it to pc for data stored. All measured temperature data are stored on the external sd card. --- **Device specification:** • Size - width 82mm, length 98mm, height 30mm • Device weight - 185gr • Temperature probe type - digital sensor DS18B20 • Temperature sensor stainless steel tube size - 6mm x 50mm • Temperature measuring range: -55 …+125 °C / -67 … +257 °F • Temperature accuracy - ±0.5°C / (-55 ~ 125°C / -67 ~ 257°F) • Resolution - 0.1 °C / 0.1 °F • Integrated Bluetooth for wireless online data transfer • Bluetooth distance range - 10 meters • Power supply - micro usb cable • Device current - max 50mA • Usb speed - 115200 • Usb driver chip - CH9102X • Software selectable - Celsius / Fahrenheit • Software selectable output format - TXT or CSV • Changeable backlight level • Changeable log interval – 1sec … 7200sec • Backlight OFF function during log • Integrated clock off-time battery type - CR1220 • Accepted SD Card types – SDHC, microSDHC • SD Card file system - FAT32 • SD Card maximum size - 32Gb --- **How much sd card memory is used to store measurement data?** ![enter image description here](https://i.postimg.cc/CLyRhvyJ/01-memory-size-table.png "enter image title here") --- **What does the structure of the program look like?** ![enter image description here](https://i.postimg.cc/1RrkXt2T/Structure-schematic.png "enter image title here") --- **User manual -** [https://drive.google.com/file/d/11RM_ZRh_RLBTka19vVRTwvdIfjIAl4wH/view?usp=sharing](https://drive.google.com/file/d/11RM_ZRh_RLBTka19vVRTwvdIfjIAl4wH/view?usp=sharing) **DATA.txt log file example - **[https://drive.google.com/file/d/1f0e94gj8CwJluZVsKcNP0iiUbh2DK_Li/view?usp=sharing](https://drive.google.com/file/d/1f0e94gj8CwJluZVsKcNP0iiUbh2DK_Li/view?usp=sharing) --- **LOT include:** 1x 8 Channel Temperature Standalone Data Logger 8x Temperature waterproof sensors SD Card not included! --- **Note:** You can use usb cable with lenght up to 5 meters You can extend the temperature sensor up to 10 meters (any three-core copper wire) ---