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![Onset HOBO U23-001 [U23-001] Pro v2 Temperature/Relative Humidity (RH) Data Logger](image/cache/wp/gj/Products/Hobo_U23-001-800x800.webp "Onset HOBO U23-001 [U23-001] Pro v2 Temperature/Relative Humidity (RH) Data Logger")
Onset HOBO U23-001 Pro v2 Temperature/Relative Humidity (RH) Data Logger is a weatherproof data logger with built-in temperature and relative humidity sensors. The RH sensor provides superior durability in humid environments and is user replaceable.
Note: U23-001 data loggers require the HOBOware software (free to download) to operate. Please also note that a USB interface cable comes with the purchase of a HOBOware Pro CD (BHW-PRO-CD), only.
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![Onset HOBO BHW-PRO [BHW-PRO-CD] HOBOware PRO v.3.x for PC & Mac](image/cache/wp/gj/Products/Hobo_BHW-PRO-CD-200x200.webp "Onset HOBO BHW-PRO [BHW-PRO-CD] HOBOware PRO v.3.x for PC & Mac")
![Onset HOBO BASE-U-4 [BASE-U-4] Optic USB Base Station](image/cache/wp/gj/Products/Hobo_BASE-U-4-200x200.webp "Onset HOBO BASE-U-4 [BASE-U-4] Optic USB Base Station")
![Onset HOBO BASE-U-4 [BASE-U-4] Optic USB Base Station](image/cache/wp/gj/Products/Hobo_BASE-U-4-1-200x200.webp "Onset HOBO BASE-U-4 [BASE-U-4] Optic USB Base Station")
![Onset HOBO U-DTW-1 [U-DTW-1] Waterproof Shuttle](image/cache/wp/gj/Products/Hobo_U-DTW-1-200x200.webp "Onset HOBO U-DTW-1 [U-DTW-1] Waterproof Shuttle")
![Onset HOBO BHW-PRO-DLD [BHW-PRO-DLD] HOBOware Pro - Mac/Win (Download Only) Software](image/cache/wp/gj/Products/Hobo_BHW-PRO-DLD-200x200.webp "Onset HOBO BHW-PRO-DLD [BHW-PRO-DLD] HOBOware Pro - Mac/Win (Download Only) Software")
