Water

Onset HOBO data loggers set the standard for reliable, accurate data logging for water monitoring applications.

HOBO water applications

Get data you can count on, from data loggers you can trust, with Onset's HOBO water monitoring solutions that are...

  • Highly accurate

  • Easily deployed

  • Durable

  • Affordable

Water is our most precious – and most at-risk – resource, so it’s more important than ever to assess and monitor impacts from climate change, urban development, and agriculture. Whether you need to track water temperature in a stream, or groundwater levels or salinity in an estuary, HOBO products offer cost-effective solutions for a wide range of water parameters and applications.


Onset HOBO MX2201 Pendant Wireless Temperature Data Logger-

Onset HOBO MX2201 Pendant Wireless Temperature Data Logger
Model: MX2201

Regular Price $75.00 USD
Availability 33 in Stock

Qty:

Regular Price $75.00 USD
Availability 33 in Stock
Quantity

Onset HOBO CABLE-USBMB USB Cable-

Onset HOBO CABLE-USBMB USB Cable
Model: CABLE-USBMB

Regular Price $18.00 USD
Availability 6 in Stock

Qty:

Regular Price $18.00 USD
Availability 6 in Stock
Quantity

Onset HOBO BOOT-TIDBIT-WH Protective Boot for TidbiT, 5-pack, white-

Onset HOBO BOOT-TIDBIT-WH Protective Boot for TidbiT, 5-pack, white
Model: BOOT-TIDBIT-WH

Sale Price $20.00 USD
Regular Price $25.00 USD
Availability 5 in Stock

Qty:

Sale Price $20.00 USD
Regular Price $25.00 USD
Availability 5 in Stock
Quantity

Onset HOBO MX2301A Wireless Temperature/RH Humidity Data Logger-

Onset HOBO MX2301A Wireless Temperature/RH Humidity Data Logger
Model: MX2301A

Regular Price $199.00 USD
Availability 4 in Stock

Qty:

Regular Price $199.00 USD
Availability 4 in Stock
Quantity

Onset HOBO BASE-U-4 Universal Optic USB Base Station-

Onset HOBO BASE-U-4 Universal Optic USB Base Station
Model: BASE-U-4

Regular Price $175.00 USD
Availability 3 in Stock

Qty:

Regular Price $175.00 USD
Availability 3 in Stock
Quantity

Onset HOBO MX2202 Pendant MX Temperature/Light Data Logger-

Onset HOBO MX2202 Pendant MX Temperature/Light Data Logger
Model: MX2202

Regular Price $89.00 USD
Availability 6 to 7 Weeks

Qty:

Regular Price $89.00 USD
Availability 6 to 7 Weeks
Quantity

Onset HOBO MX2303 Wireless Temperature Data Logger with two external sensors-

Onset HOBO MX2303 Wireless Temperature Data Logger with two external sensors
Model: MX2303

Regular Price $235.00 USD
Availability 4 to 5 Weeks

Qty:

Regular Price $235.00 USD
Availability 4 to 5 Weeks
Quantity

Onset HOBO U22-001 Pro v2 Water Temperature Data Logger-

Onset HOBO U22-001 Pro v2 Water Temperature Data Logger
Model: U22-001

Regular Price $175.00 USD
Availability 1 Day
Regular Price $175.00 USD
Availability 1 Day
Quantity
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Onset HOBO 85-CAPLUG-H20-B End Cap for Protective Black Boot-

Onset HOBO 85-CAPLUG-H20-B End Cap for Protective Black Boot
Model: 85-CAPLUG-H20-B

Regular Price $7.00 USD
Availability 4 Days

Qty:

Regular Price $7.00 USD
Availability 4 Days
Quantity

Onset HOBO 85-DESICCANT6 Desiccant Pack for Onset HOBO Micro Station-

Onset HOBO 85-DESICCANT6 Desiccant Pack for Onset HOBO Micro Station
Model: 85-DESICCANT6

Regular Price $14.00 USD
Availability 2 to 3 Weeks

Qty:

Regular Price $14.00 USD
Availability 2 to 3 Weeks
Quantity

Onset HOBO 85-ORING-15 Replacement O-ring for 85-DOMEPLUG-1-

Onset HOBO 85-ORING-15 Replacement O-ring for 85-DOMEPLUG-1
Model: 85-ORING-15

Regular Price $4.00 USD
Availability 2 to 3 Weeks

Qty:

Regular Price $4.00 USD
Availability 2 to 3 Weeks
Quantity

Onset HOBO 85-SEALANT Sealant for Submersible Case-

Onset HOBO 85-SEALANT Sealant for Submersible Case
Model: 85-SEALANT

Regular Price $6.00 USD
Availability 3 to 4 Weeks

Qty:

Regular Price $6.00 USD
Availability 3 to 4 Weeks
Quantity

Onset HOBO A-WNB-LEADSET Voltage Input Lead Set-

Onset HOBO A-WNB-LEADSET Voltage Input Lead Set
Model: A-WNB-LEADSET

Regular Price $129.00 USD
Availability 1 Week

Qty:

Regular Price $129.00 USD
Availability 1 Week
Quantity

Onset HOBO AC-SENS-1 AC Power Adapter, 12 VDC power-

Onset HOBO AC-SENS-1 AC Power Adapter, 12 VDC power
Model: AC-SENS-1

Regular Price $35.00 USD
Availability 7 to 8 Weeks

Qty:

Regular Price $35.00 USD
Availability 7 to 8 Weeks
Quantity

Onset HOBO AC-U30 AC Power Adapter-

Onset HOBO AC-U30 AC Power Adapter
Model: AC-U30

Regular Price $70.00 USD
Availability 4 to 5 Weeks

Qty:

Regular Price $70.00 USD
Availability 4 to 5 Weeks
Quantity

Onset HOBO BHW-DA-GPP-CD Grains Per Pound Data Assistant Software-

Onset HOBO BHW-DA-GPP-CD Grains Per Pound Data Assistant Software
Model: BHW-DA-GPP-CD

Regular Price $37.03 USD
Availability 2 to 3 Weeks

Qty:

Regular Price $37.03 USD
Availability 2 to 3 Weeks
Quantity

Onset HOBO BHW-PRO-DLD Onset HOBOware PRO Software v.3.x, Mac/Windows download-

Onset HOBO BHW-PRO-DLD Onset HOBOware PRO Software v.3.x, Mac/Windows download
Model: BHW-PRO-DLD

Regular Price $75.00 USD
Availability 4 to 5 Weeks

Qty:

Regular Price $75.00 USD
Availability 4 to 5 Weeks
Quantity

Onset HOBO BOOT-BLK Protective Boot for WTemp Pro Data Logger, black-

Onset HOBO BOOT-BLK Protective Boot for WTemp Pro Data Logger, black
Model: BOOT-BLK

Regular Price $26.00 USD
Availability 2 to 3 Weeks

Qty:

Regular Price $26.00 USD
Availability 2 to 3 Weeks
Quantity

Onset HOBO BOOT-MX2203-GR Boot for the MX2203, Grey, 5-pack-

Onset HOBO BOOT-MX2203-GR Boot for the MX2203, Grey, 5-pack
Model: BOOT-MX2203-GR

Regular Price $55.00 USD
Availability 2 to 3 Weeks

Qty:

Regular Price $55.00 USD
Availability 2 to 3 Weeks
Quantity

Onset HOBO BOOT-MX2204-GR Boot for the MX2204, Grey, 5-pack-

Onset HOBO BOOT-MX2204-GR Boot for the MX2204, Grey, 5-pack
Model: BOOT-MX2204-GR

Regular Price $55.00 USD
Availability 2 to 3 Weeks

Qty:

Regular Price $55.00 USD
Availability 2 to 3 Weeks
Quantity

Calibration Lab
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