HOBO Water Level Logger – U20L

The HOBO U20L-001 is a low-cost, research-grade water level data logger for continuously measuring water level and temperature in a wide range of underwater environments. It features 0.1% measurement accuracy, a polypropylene housing for use in both fresh and salt water, and a non-vented design for convenient and hassle-free deployment.

The U20L-01 Data Logger is for use in Outdoor and Underwater environments

The U20L-01 Data Logger supports the following measurements:

Temperature • Barometric Pressure • Water Level



Water Lever Logger
Measurement range 0 to 4 meter water column
U20L-01 Measurement range 0 to 9 meter water column
U20L-02 Measurement range 0 to 30 meter water column

For a complete system you need:
1 Software: HOBOwarePro
2 Optic communication unit: BASE U-4 eller U-DTW-1
3 Data logger: U20L

Extra protection for U20L




  • Available in three pressure ranges 4, 9 and 30mVP
  • Casing in polypropylene
  • Fully self contained
  • For measurement in sweet & salt water
  • Operating time 5 years
  • Replaceable battery from Onset via ETM

Typical applications:

  • Watercourse
  • Laked
  • Wells
  • Wetlands
  • U20L-04 : 0-4 mVP
  • U20L-01 : 0-9 mVP
  • U20L-02 : 0-30 mVP
Price excl. VAT
  • 2920kr
  • 2920 kr
  • 2920kr


Some of our references

Skärmklipp 2017-12-19 18.18.07

                    Preferred supplier in Smart Grid Gotland