HOBO by Onset U20L-04 - Water Level (13 ft) Data Logger

Onset HOBO Stainless Steel Bluetooth Water Level Logger 9m 30' MX2001-01-SS

HOBO Stainless Steel Bluetooth Freshwater Water Level Data Logger MX2001-02-SS

HOBO by Onset U20L-01 - Water Level (30ft) Data Logger

HOBO by Onset U24-002-C - Conductivity Data Logger

Onset HOBO MX20L-01 Bluetooth Water Level 0 to 30 Ft & Temperature Data Logger

Onset HOBO U20L-01 Low-Cost Water Level & Temperature Data Logger 30 Ft Depth

Onset Hobo U12-006 4-External Channel Data Logger USB Data Acquisition Logger