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 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

Your Price $7.00 USD
Availability 4 Days

Qty:

Your Price $7.00 USD
Availability 4 Days
Quantity

Onset HOBO COUPLER2-A Coupler for UA Pendant Data Loggers-

Onset HOBO COUPLER2-A Coupler for UA Pendant Data Loggers
Model: COUPLER2-A

Your Price $17.00 USD
Availability 2 to 3 Weeks

Qty:

Your Price $17.00 USD
Availability 2 to 3 Weeks
Quantity

Onset HOBO COUPLER2-B Coupler for U20 Water Level Data Loggers-

Onset HOBO COUPLER2-B Coupler for U20 Water Level Data Loggers
Model: COUPLER2-B

Your Price $15.00 USD
Availability 8 to 9 Weeks

Qty:

Your Price $15.00 USD
Availability 8 to 9 Weeks
Quantity

Onset HOBO DESICCANT1 Small Desiccant Pack, 25-pack-

Onset HOBO DESICCANT1 Small Desiccant Pack, 25-pack
Model: DESICCANT1

Your Price $13.00 USD
Availability 6 to 7 Weeks

Qty:

Your Price $13.00 USD
Availability 6 to 7 Weeks
Quantity

Onset HOBO DESICCANT2 Large Desiccant Pack, 25-pack-

Onset HOBO DESICCANT2 Large Desiccant Pack, 25-pack
Model: DESICCANT2

Your Price $20.00 USD
Availability 3 to 4 Weeks

Qty:

Your Price $20.00 USD
Availability 3 to 4 Weeks
Quantity

Onset HOBO HRB-TEMP-1 Replacement Batteries, 5-pack-

Onset HOBO HRB-TEMP-1 Replacement Batteries, 5-pack
Model: HRB-TEMP-1

Your Price $13.00 USD
Availability 1 to 2 Weeks

Qty:

Your Price $13.00 USD
Availability 1 to 2 Weeks
Quantity

Onset HOBO M-MLA Mast Level-

Onset HOBO M-MLA Mast Level
Model: M-MLA

Your Price $16.34 USD
Availability 2 to 3 Weeks

Qty:

Your Price $16.34 USD
Availability 2 to 3 Weeks
Quantity

Onset HOBO U12-015-Oring-E Replacement O-Ring Kit (EPDM)-

Onset HOBO U12-015-Oring-E Replacement O-Ring Kit (EPDM)
Model: U12-015-Oring-E

Your Price $21.00 USD
Availability 2 to 3 Weeks

Qty:

Your Price $21.00 USD
Availability 2 to 3 Weeks
Quantity

Onset HOBO U12-015-Oring-V Replacement O-Ring Kit (Viton)-

Onset HOBO U12-015-Oring-V Replacement O-Ring Kit (Viton)
Model: U12-015-Oring-V

Your Price $21.00 USD
Availability 2 to 3 Weeks

Qty:

Your Price $21.00 USD
Availability 2 to 3 Weeks
Quantity

Onset HOBO MX2201 Pendant Wireless Temperature Data Logger-

Onset HOBO MX2201 Pendant Wireless Temperature Data Logger
Model: MX2201

Your Price $79.00 USD
Availability 5 in Stock

Qty:

Your Price $79.00 USD
Availability 5 in Stock
Quantity

Onset HOBO MX2202 Pendant MX Temperature/Light Data Logger-

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

Your Price $95.00 USD
Availability 9 in Stock

Qty:

Your Price $95.00 USD
Availability 9 in Stock
Quantity

Onset HOBO TidbiT MX2203 Wireless Temperature Data Logger, 400'-

Onset HOBO TidbiT MX2203 Wireless Temperature Data Logger, 400'
Model: MX2203

Your Price $159.00 USD
Availability 2 to 3 Weeks

Qty:

Your Price $159.00 USD
Availability 2 to 3 Weeks
Quantity

Onset HOBO TidbiT MX2204 Wireless Temperature Data Logger, 5000'-

Onset HOBO TidbiT MX2204 Wireless Temperature Data Logger, 5000'
Model: MX2204

Your Price $169.00 USD
Availability 5 to 6 Weeks

Qty:

Your Price $169.00 USD
Availability 5 to 6 Weeks
Quantity

Onset HOBO SP-007 Ethernet/Wifi Limited Power Data Plan for the RX3000-

Onset HOBO SP-007 Ethernet/Wifi Limited Power Data Plan for the RX3000
Model: SP-007

Your Price $126.00 USD
Availability 2 to 3 Weeks

Qty:

Your Price $126.00 USD
Availability 2 to 3 Weeks
Quantity

Onset HOBO CABLE-DR-010 Direct Read Cable, 32.8'-

Onset HOBO CABLE-DR-010 Direct Read Cable, 32.8'
Model: CABLE-DR-010

Your Price $184.00 USD
Availability 8 to 9 Weeks

Qty:

Your Price $184.00 USD
Availability 8 to 9 Weeks
Quantity

Onset HOBO MX2001-01-SS Wireless Water Level Data Logger with 29.5' SS sensor-

Onset HOBO MX2001-01-SS Wireless Water Level Data Logger with 29.5' SS sensor
Model: MX2001-01-SS

Your Price $780.00 USD
Availability 9 to 10 Weeks

Qty:

Your Price $780.00 USD
Availability 9 to 10 Weeks
Quantity

Onset HOBO MX2001-01-SS-S Water Level sensor, 29.5', stainless steel-

Onset HOBO MX2001-01-SS-S Water Level sensor, 29.5', stainless steel
Model: MX2001-01-SS-S

Your Price $435.00 USD
Availability 10 to 11 Weeks

Qty:

Your Price $435.00 USD
Availability 10 to 11 Weeks
Quantity

Onset HOBO MX2001-01-Ti Wireless Water Level Data Logger with 29.5' titanium sensor-

Onset HOBO MX2001-01-Ti Wireless Water Level Data Logger with 29.5' titanium sensor
Model: MX2001-01-Ti

Your Price $825.00 USD
Availability 2 to 3 Weeks

Qty:

Your Price $825.00 USD
Availability 2 to 3 Weeks
Quantity

Onset HOBO MX2001-01-Ti-S Water Level sensor, 29.5', titanium-

Onset HOBO MX2001-01-Ti-S Water Level sensor, 29.5', titanium
Model: MX2001-01-Ti-S

Your Price $480.00 USD
Availability 2 to 3 Weeks

Qty:

Your Price $480.00 USD
Availability 2 to 3 Weeks
Quantity

Onset HOBO MX2001-02-SS-S Water Level sensor, 30m, stainless steel-

Onset HOBO MX2001-02-SS-S Water Level sensor, 30m, stainless steel
Model: MX2001-02-SS-S

Your Price $435.00 USD
Availability 5 Days

Qty:

Your Price $435.00 USD
Availability 5 Days
Quantity

We Ship Free on Orders Over &99 within Canada