Water

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

Showing 1 to 20 of 158 products

Onset HOBO MX2201 Pendant Wireless Temperature Data Logger
Model: MX2201

Regular Price	$75.00 USD
Availability	31 in Stock

Qty:

Regular Price	$75.00 USD
Availability	31 in Stock
Quantity

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

Regular Price	$175.00 USD
Availability	5 Days12 in Stock

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Regular Price	$175.00 USD
Availability	5 Days12 in Stock
Quantity

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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
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
Model: MX2301A

Regular Price	$199.00 USD
Availability	5 Days4 in Stock

Qty:

Regular Price	$199.00 USD
Availability	5 Days4 in Stock
Quantity

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

Regular Price	$175.00 USD
Availability	2 in Stock

Qty:

Regular Price	$175.00 USD
Availability	2 in Stock
Quantity

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

Regular Price	$15.00 USD
Availability	2 to 3 Weeks

Qty:

Regular Price	$15.00 USD
Availability	2 to 3 Weeks
Quantity

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

Regular Price	$15.00 USD
Availability	8 to 9 Weeks

Qty:

Regular Price	$15.00 USD
Availability	8 to 9 Weeks
Quantity

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

Regular Price	$13.00 USD
Availability	6 to 7 Weeks

Qty:

Regular Price	$13.00 USD
Availability	6 to 7 Weeks
Quantity

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

Regular Price	$20.00 USD
Availability	3 to 4 Weeks

Qty:

Regular Price	$20.00 USD
Availability	3 to 4 Weeks
Quantity

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

Regular Price	$13.00 USD
Availability	1 to 2 Weeks

Qty:

Regular Price	$13.00 USD
Availability	1 to 2 Weeks
Quantity

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

Regular Price	$16.34 USD
Availability	2 to 3 Weeks

Qty:

Regular Price	$16.34 USD
Availability	2 to 3 Weeks
Quantity

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

Regular Price	$21.00 USD
Availability	2 to 3 Weeks

Qty:

Regular Price	$21.00 USD
Availability	2 to 3 Weeks
Quantity

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

Regular Price	$21.00 USD
Availability	2 to 3 Weeks

Qty:

Regular Price	$21.00 USD
Availability	2 to 3 Weeks
Quantity

Onset HOBO MX2501 pH and Temperature Data Logger with Bluetooth Low Energy
Model: MX2501

Regular Price	$825.00 USD
Availability	6 to 7 Weeks7 to 8 Weeks

Qty:

Regular Price	$825.00 USD
Availability	6 to 7 Weeks7 to 8 Weeks
Quantity

Onset HOBO SP-610 User-Supplied SIM Service Plan for the RX2100, 10 minute/1 minute
Model: SP-610

Regular Price	$189.00 USD
Availability	11 to 12 Weeks

Qty:

Regular Price	$189.00 USD
Availability	11 to 12 Weeks
Quantity

Onset HOBO SP-811 Basic 4G Service Plan for the RX2100, 1 hour/1 minute, global
Model: SP-811

Regular Price	$252.00 USD
Availability	2 to 3 Weeks

Qty:

Regular Price	$252.00 USD
Availability	2 to 3 Weeks
Quantity

Onset HOBO SP-812 Basic 4G Service Plan for the RX2100, 1 hour/1 minute, US only
Model: SP-812

Regular Price	$252.00 USD
Availability	2 to 3 Weeks

Qty:

Regular Price	$252.00 USD
Availability	2 to 3 Weeks
Quantity

Showing 1 to 20 of 158 products

4.8/5 Stars

4.8/5 Stars

Water

Onset HOBO MX2201 Pendant Wireless Temperature Data Logger Model: MX2201

Qty:

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

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

Qty:

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

Qty:

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

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

Qty:

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

Qty:

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

Qty:

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

Qty:

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

Qty:

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

Qty:

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

Qty:

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

Qty:

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

Qty:

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

Qty:

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

Qty:

Onset HOBO MX2501 pH and Temperature Data Logger with Bluetooth Low Energy Model: MX2501

Qty:

Onset HOBO SP-610 User-Supplied SIM Service Plan for the RX2100, 10 minute/1 minute Model: SP-610

Qty:

Onset HOBO SP-811 Basic 4G Service Plan for the RX2100, 1 hour/1 minute, global Model: SP-811

Qty:

Onset HOBO SP-812 Basic 4G Service Plan for the RX2100, 1 hour/1 minute, US only Model: SP-812

Qty:

Onset HOBO MX2201 Pendant Wireless Temperature Data Logger
Model: MX2201

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Onset HOBO MX2501 pH and Temperature Data Logger with Bluetooth Low Energy
Model: MX2501

Onset HOBO SP-610 User-Supplied SIM Service Plan for the RX2100, 10 minute/1 minute
Model: SP-610

Onset HOBO SP-811 Basic 4G Service Plan for the RX2100, 1 hour/1 minute, global
Model: SP-811

Onset HOBO SP-812 Basic 4G Service Plan for the RX2100, 1 hour/1 minute, US only
Model: SP-812