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![Onset HOBO U20 Series [U20-Ti] Salwater Water Level Data Loggers - Titanium](image/cache/wp/gj/Products/Hobo_U20-001-04-800x800.webp "Onset HOBO U20 Series [U20-Ti] Salwater Water Level Data Loggers - Titanium")
![Onset HOBO U20 Series [U20-Ti] Salwater Water Level Data Loggers - Titanium](image/cache/wp/gj/Products/Hobo_U20-1-800x800.webp "Onset HOBO U20 Series [U20-Ti] Salwater Water Level Data Loggers - Titanium")
![Onset HOBO U20 Series [U20-Ti] Salwater Water Level Data Loggers - Titanium](image/cache/wp/gj/Products/Hobo_U20-800x800.webp "Onset HOBO U20 Series [U20-Ti] Salwater Water Level Data Loggers - Titanium")
![Onset HOBO U20 Series [U20-Ti] Salwater Water Level Data Loggers - Titanium](image/cache/wp/gj/Products/Hobo_U20-001-04-100x100.webp "Onset HOBO U20 Series [U20-Ti] Salwater Water Level Data Loggers - Titanium")
![Onset HOBO U20 Series [U20-Ti] Salwater Water Level Data Loggers - Titanium](image/cache/wp/gj/Products/Hobo_U20-1-100x100.webp "Onset HOBO U20 Series [U20-Ti] Salwater Water Level Data Loggers - Titanium")
![Onset HOBO U20 Series [U20-Ti] Salwater Water Level Data Loggers - Titanium](image/cache/wp/gj/Products/Hobo_U20-100x100.webp "Onset HOBO U20 Series [U20-Ti] Salwater Water Level Data Loggers - Titanium")
The HOBO U20 water level data logger features high accuracy and ease-of-use, without cumbersome vent tubes or desiccants to maintain. This data logger is ideal for recording water levels and temperatures in shallow wells, streams, lakes and freshwater wetlands. For saltwater deployments, such as brackish wetlands and tidal areas, see HOBO U20 Water Level Titanium.
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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 U20 [U20-001-01] Freshwater Water Level Data Logger, 0 to 9 m (0 to 30 ft)](image/cache/wp/gj/Products/Hobo_U20-001-01-200x200.webp "Onset HOBO U20 [U20-001-01] Freshwater Water Level Data Logger, 0 to 9 m (0 to 30 ft)")
![Onset HOBO U20 [U20-001-01] Freshwater Water Level Data Logger, 0 to 9 m (0 to 30 ft)](image/cache/wp/gj/Products/Hobo_U20-1-200x200.webp "Onset HOBO U20 [U20-001-01] Freshwater Water Level Data Logger, 0 to 9 m (0 to 30 ft)")
![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")
