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 21 to 40 of 156 products

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	Quantity

Onset HOBO U12-015-03-ORING-KIT Replacement O-Ring Kit
Model: U12-015-03-Oring-Kit

Your Price	$24.00 USD
Availability	2 to 3 Weeks

Qty:

Your Price	$24.00 USD
Availability	2 to 3 Weeks
Quantity	Quantity

Onset HOBO UA-PARTSKIT Pendant Replacement Parts Kit
Model: UA-PARTSKIT

Your Price	$25.00 USD
Availability	7 to 8 Weeks

Qty:

Your Price	$25.00 USD
Availability	7 to 8 Weeks
Quantity	Quantity

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

Your Price	$26.00 USD
Availability	2 to 3 Weeks

Qty:

Your Price	$26.00 USD
Availability	2 to 3 Weeks
Quantity	Quantity

Onset HOBO U22-U24-CAP Communications Window Cap, 5-pack
Model: U22-U24-CAP

Your Price	$29.00 USD
Availability	2 to 3 Weeks

Qty:

Your Price	$29.00 USD
Availability	2 to 3 Weeks
Quantity	Quantity

Onset HOBO BOOT-TIDBIT-BK Protective Boot for TidbiT, 5-pack, black
Model: BOOT-TIDBIT-BK

Your Price	$31.00 USD
Availability	2 to 3 Weeks

Qty:

Your Price	$31.00 USD
Availability	2 to 3 Weeks
Quantity	Quantity

Onset HOBO HRB-LI-6 Replacement AA Batteries, 6-pack
Model: HRB-LI-6

Your Price	$37.00 USD
Availability	2 to 3 Weeks

Qty:

Your Price	$37.00 USD
Availability	2 to 3 Weeks
Quantity	Quantity

Onset HOBO CABLE-RX-PWR External DC Power Cable for RX3000
Model: CABLE-RX-PWR

Your Price	$37.00 USD
Availability	5 to 6 Weeks

Qty:

Your Price	$37.00 USD
Availability	5 to 6 Weeks
Quantity	Quantity

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

Your Price	$37.03 USD
Availability	2 to 3 Weeks

Qty:

Your Price	$37.03 USD
Availability	2 to 3 Weeks
Quantity	Quantity

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

Your Price	$39.00 USD
Availability	7 to 8 Weeks

Qty:

Your Price	$39.00 USD
Availability	7 to 8 Weeks
Quantity	Quantity

Onset HOBO S-ADAPT-5 Communication Adapter, 1 to 2 sensor
Model: S-ADAPT-5

Your Price	$45.00 USD
Availability	2 to 3 Weeks

Qty:

Your Price	$45.00 USD
Availability	2 to 3 Weeks
Quantity	Quantity

Onset HOBO M-SKB Stake Kit, 0.25"
Model: M-SKB

Your Price	$45.00 USD
Availability	3 to 4 Weeks

Qty:

Your Price	$45.00 USD
Availability	3 to 4 Weeks
Quantity	Quantity

Onset HOBO U26-CAL-SOL Sodium Sulfite Solution, 500 mL
Model: U26-CAL-SOL

Your Price	$46.00 USD
Availability	4 to 5 Weeks

Qty:

Your Price	$46.00 USD
Availability	4 to 5 Weeks
Quantity	Quantity

Onset HOBO T-SDX-93030-010 Desiccant Cartridge for Stevens SDX
Model: T-SDX-93030-010

Your Price	$50.00 USD
Availability	2 to 3 Weeks

Qty:

Your Price	$50.00 USD
Availability	2 to 3 Weeks
Quantity	Quantity

Onset HOBO TMC1-HD Air/Water/Soil Temperature Probe, 1'
Model: TMC1-HD

Your Price	$50.00 USD
Availability	1 to 2 Weeks

Qty:

Your Price	$50.00 USD
Availability	1 to 2 Weeks
Quantity	Quantity

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

Your Price	$55.00 USD
Availability	2 to 3 Weeks

Qty:

Your Price	$55.00 USD
Availability	2 to 3 Weeks
Quantity	Quantity

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

Your Price	$55.00 USD
Availability	2 to 3 Weeks

Qty:

Your Price	$55.00 USD
Availability	2 to 3 Weeks
Quantity	Quantity

Onset HOBO TMC6-HD Air/Water/Soil Temperature Probe, 6'
Model: TMC6-HD

Your Price	$55.00 USD
Availability	7 to 8 Weeks

Qty:

Your Price	$55.00 USD
Availability	7 to 8 Weeks
Quantity	Quantity

Onset HOBO CABLE-1-CRIMP Crimp Sleeve for CABLE-1-XX, 12-pack
Model: CABLE-1-CRIMP

Your Price	$56.00 USD
Availability	1 to 2 Weeks

Qty:

Your Price	$56.00 USD
Availability	1 to 2 Weeks
Quantity	Quantity

Onset HOBO HRB-2477 Replacement Battery for MX2203, 6-box
Model: HRB-2477

Your Price	$60.00 USD
Availability	2 to 3 Weeks

Qty:

Your Price	$60.00 USD
Availability	2 to 3 Weeks
Quantity	Quantity

Showing 21 to 40 of 156 products

4.8/5 Stars

4.8/5 Stars

Water

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

Qty:

Onset HOBO U12-015-03-ORING-KIT Replacement O-Ring Kit Model: U12-015-03-Oring-Kit

Qty:

Onset HOBO UA-PARTSKIT Pendant Replacement Parts Kit Model: UA-PARTSKIT

Qty:

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

Qty:

Onset HOBO U22-U24-CAP Communications Window Cap, 5-pack Model: U22-U24-CAP

Qty:

Onset HOBO BOOT-TIDBIT-BK Protective Boot for TidbiT, 5-pack, black Model: BOOT-TIDBIT-BK

Qty:

Onset HOBO HRB-LI-6 Replacement AA Batteries, 6-pack Model: HRB-LI-6

Qty:

Onset HOBO CABLE-RX-PWR External DC Power Cable for RX3000 Model: CABLE-RX-PWR

Qty:

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

Qty:

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

Qty:

Onset HOBO S-ADAPT-5 Communication Adapter, 1 to 2 sensor Model: S-ADAPT-5

Qty:

Onset HOBO M-SKB Stake Kit, 0.25" Model: M-SKB

Qty:

Onset HOBO U26-CAL-SOL Sodium Sulfite Solution, 500 mL Model: U26-CAL-SOL

Qty:

Onset HOBO T-SDX-93030-010 Desiccant Cartridge for Stevens SDX Model: T-SDX-93030-010

Qty:

Onset HOBO TMC1-HD Air/Water/Soil Temperature Probe, 1' Model: TMC1-HD

Qty:

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

Qty:

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

Qty:

Onset HOBO TMC6-HD Air/Water/Soil Temperature Probe, 6' Model: TMC6-HD

Qty:

Onset HOBO CABLE-1-CRIMP Crimp Sleeve for CABLE-1-XX, 12-pack Model: CABLE-1-CRIMP

Qty:

Onset HOBO HRB-2477 Replacement Battery for MX2203, 6-box Model: HRB-2477

Qty:

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

Onset HOBO U12-015-03-ORING-KIT Replacement O-Ring Kit
Model: U12-015-03-Oring-Kit

Onset HOBO UA-PARTSKIT Pendant Replacement Parts Kit
Model: UA-PARTSKIT

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

Onset HOBO U22-U24-CAP Communications Window Cap, 5-pack
Model: U22-U24-CAP

Onset HOBO BOOT-TIDBIT-BK Protective Boot for TidbiT, 5-pack, black
Model: BOOT-TIDBIT-BK

Onset HOBO HRB-LI-6 Replacement AA Batteries, 6-pack
Model: HRB-LI-6

Onset HOBO CABLE-RX-PWR External DC Power Cable for RX3000
Model: CABLE-RX-PWR

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

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

Onset HOBO S-ADAPT-5 Communication Adapter, 1 to 2 sensor
Model: S-ADAPT-5

Onset HOBO M-SKB Stake Kit, 0.25"
Model: M-SKB

Onset HOBO U26-CAL-SOL Sodium Sulfite Solution, 500 mL
Model: U26-CAL-SOL

Onset HOBO T-SDX-93030-010 Desiccant Cartridge for Stevens SDX
Model: T-SDX-93030-010

Onset HOBO TMC1-HD Air/Water/Soil Temperature Probe, 1'
Model: TMC1-HD

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

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

Onset HOBO TMC6-HD Air/Water/Soil Temperature Probe, 6'
Model: TMC6-HD

Onset HOBO CABLE-1-CRIMP Crimp Sleeve for CABLE-1-XX, 12-pack
Model: CABLE-1-CRIMP

Onset HOBO HRB-2477 Replacement Battery for MX2203, 6-box
Model: HRB-2477