Water Temperature Data Loggers and Sensors

Water often needs to be monitored in hard to reach locations. With onset, you can be sure to have the right products for your water monitoring needs. Key Advantages:
  • Simple and quick to deploy
  • Fast, easy data offload
  • Highly portable and reusable
  • Optional water/weatherproof data shuttle
  • Suitable for use in oceans, lakes, streams, etc.

Results: 1 to 14 of 14
  • U22-001

    Optical Interface for data transferThe HOBO Water Temp Pro v2 is durable with 12-bit resolution. Complete with a precision sensor for ±0.2°C accuracy, this logger measures temperatures between -40°C and 70°C (-40°F to 158°F) in air and up to 50°C (122°F) in water. Its waterproof, streamlined case allows for extended deployment in fresh or salt water. Moreover, the Water Temp Pro v2’s optical USB interface makes it possible  to offload data even while the logger is wet or underwater. A solar radiation shield is required to obtain accurate air temperature measurements in sunlight (RS1 Solar Radiation Shield, assembly required; or M-RSA pre-assembled Solar Radiation Shield).

    Add Extended warranty for $12.90/unit?

    Yes No thanks

    (this choice will apply to all existing U22-001 in your cartquote request)
    $129

    x
    Full Product Details
    U22-001 Data Logger

    Optical Interface for data transferThe HOBO Water Temp Pro v2 is durable with 12-bit resolution. Complete with a precision sensor for ±0.2°C accuracy, this logger measures temperatures between -40°C and 70°C (-40°F to 158°F) in air and up to 50°C (122°F) in water. Its waterproof, streamlined case allows for extended deployment in fresh or salt water. Moreover, the Water Temp Pro v2’s optical USB interface makes it possible  to offload data even while the logger is wet or underwater. A solar radiation shield is required to obtain accurate air temperature measurements in sunlight (RS1 Solar Radiation Shield, assembly required; or M-RSA pre-assembled Solar Radiation Shield).


    $129
    Add Extended warranty for $12.90/unit?

    Yes No thanks

    (this choice will apply to all existing U22-001 in your cartquote request)
  • UTBI-001

    Optical Interface for data transferOnly 3x4 cm, this tiny data logger measures temperatures over a wide temperature range. The TidbiT v2 provides 12-bit resolution and has ±0.2 °C accuracy. It is designed for outdoor and underwater environments and is waterproof to 300 m (1000 ft). An optical USB interface allows users to offload data in seconds. Please note, a solar radiation shield is required to obtain accurate air temperature measurements in sunlight (RS1 Solar Radiation Shield, assembly required; or M-RSA pre-assembled Solar Radiation Shield).

    Add Extended warranty for $13.30/unit?

    Yes No thanks

    (this choice will apply to all existing UTBI-001 in your cartquote request)
    $133

    x
    Full Product Details
    UTBI-001 Data Logger

    Optical Interface for data transferOnly 3x4 cm, this tiny data logger measures temperatures over a wide temperature range. The TidbiT v2 provides 12-bit resolution and has ±0.2 °C accuracy. It is designed for outdoor and underwater environments and is waterproof to 300 m (1000 ft). An optical USB interface allows users to offload data in seconds. Please note, a solar radiation shield is required to obtain accurate air temperature measurements in sunlight (RS1 Solar Radiation Shield, assembly required; or M-RSA pre-assembled Solar Radiation Shield).


    $133
    Add Extended warranty for $13.30/unit?

    Yes No thanks

    (this choice will apply to all existing UTBI-001 in your cartquote request)

  • The HOBO U12 Deep Ocean Water Temperature Data Logger is a single-channel water temperature logger with 12-bit resolution that can record up to 43,000 measurements. With its robust titanium housing, this logger is designed to withstand ocean extremes of depth and temperature.

    Add Extended warranty for $79.90/unit?

    Yes No thanks

    (this choice will apply to all existing U12-015-03 in your cartquote request)
    $799

    x
    Full Product Details
    U12-015-03 Data Logger

    The HOBO U12 Deep Ocean Water Temperature Data Logger is a single-channel water temperature logger with 12-bit resolution that can record up to 43,000 measurements. With its robust titanium housing, this logger is designed to withstand ocean extremes of depth and temperature.


    3 week lead time


    $799
    Add Extended warranty for $79.90/unit?

    Yes No thanks

    (this choice will apply to all existing U12-015-03 in your cartquote request)

  • The 12-bit Temperature Smart Sensor provides < ± 0.2° C total accuracy (< ±0.36° F) and resolution of < ± 0.03° C (< ±0.054° F) over the range of from 0° to 50° C (32° to 122° F). The full measurement range is -40° to 100° C (-40° to 212° F). A selectable measurement-averaging feature further improves accuracy. Reliable service is assured by a stainless steel sensor tip and robust cable rated for immersion in water up to 50° C for up to one year. This model has a cable length of 6m.

    Add Extended warranty for $10.50/unit?

    Yes No thanks

    (this choice will apply to all existing S-TMB-M006 in your cartquote request)
    $105

    x
    Full Product Details
    S-TMB-M006 Sensor

    The 12-bit Temperature Smart Sensor provides < ± 0.2° C total accuracy (< ±0.36° F) and resolution of < ± 0.03° C (< ±0.054° F) over the range of from 0° to 50° C (32° to 122° F). The full measurement range is -40° to 100° C (-40° to 212° F). A selectable measurement-averaging feature further improves accuracy. Reliable service is assured by a stainless steel sensor tip and robust cable rated for immersion in water up to 50° C for up to one year. This model has a cable length of 6m.


    $105
    Add Extended warranty for $10.50/unit?

    Yes No thanks

    (this choice will apply to all existing S-TMB-M006 in your cartquote request)

  • Measure temperature in air, water, or soil with the 6.1m (20 ft)  TMC20-HD temperature sensor. This product is designed to be used with HOBO U-Series, UX120-006M external-channel data loggers or ZW series wireless datanodes. This sensor records temperatures between -40° and 50°C (-40° to 122°F) in water or soil, and between -40° and 100°C (-40° to 212°F) in air. This product provides a response time of minutes typical to 90% in air moving 1 m/sec (2.2 mph); and 1 minute typical to 90% response time in stirred water. Please note, accuracy and resolution depend on data logger.

    $44

    x
    Full Product Details
    TMC20-HD Sensor

    Measure temperature in air, water, or soil with the 6.1m (20 ft)  TMC20-HD temperature sensor. This product is designed to be used with HOBO U-Series, UX120-006M external-channel data loggers or ZW series wireless datanodes. This sensor records temperatures between -40° and 50°C (-40° to 122°F) in water or soil, and between -40° and 100°C (-40° to 212°F) in air. This product provides a response time of minutes typical to 90% in air moving 1 m/sec (2.2 mph); and 1 minute typical to 90% response time in stirred water. Please note, accuracy and resolution depend on data logger.


    $44

  • UA-002-08

    Optical Interface for data transfer

    This HOBO Pendant® data logger is a miniature, waterproof two-channel temperature and relative light level data logger. The 8K model comes at a great value and is suitable for indoor, outdoor, and underwater applications. This logger holds approximately 6.5K of 10-bit readings. Use a solar radiation shield for accurate temperature measurement in sunlight.See RS1 Solar Radiation Shield (assembly required) and M-RSA (pre-assembled) Solar Radiation Shield. Note that using a solar radition shield prevents the use of the light sensor. 

    Add Extended warranty for $4.70/unit?

    Yes No thanks

    (this choice will apply to all existing UA-002-08 in your cartquote request)
    $47

    x
    Full Product Details
    UA-002-08 Data Logger

    Optical Interface for data transfer

    This HOBO Pendant® data logger is a miniature, waterproof two-channel temperature and relative light level data logger. The 8K model comes at a great value and is suitable for indoor, outdoor, and underwater applications. This logger holds approximately 6.5K of 10-bit readings. Use a solar radiation shield for accurate temperature measurement in sunlight.See RS1 Solar Radiation Shield (assembly required) and M-RSA (pre-assembled) Solar Radiation Shield. Note that using a solar radition shield prevents the use of the light sensor. 


    $47
    Add Extended warranty for $4.70/unit?

    Yes No thanks

    (this choice will apply to all existing UA-002-08 in your cartquote request)

  • The 12-bit Temperature Smart Sensor provides < ± 0.2° C total accuracy (< ±0.36° F) and resolution of < ± 0.03° C (< ±0.054° F) over the range of from 0° to 50° C (32° to 122° F). The full measurement range is -40° to 100° C (-40° to 212° F). A selectable measurement-averaging feature further improves accuracy. Reliable service is assured by a stainless steel sensor tip and robust cable rated for immersion in water up to 50° C for up to 1 year. This model has a cable length of 17m.

    Add Extended warranty for $12.00/unit?

    Yes No thanks

    (this choice will apply to all existing S-TMB-M017 in your cartquote request)
    $120

    x
    Full Product Details
    S-TMB-M017 Sensor

    The 12-bit Temperature Smart Sensor provides < ± 0.2° C total accuracy (< ±0.36° F) and resolution of < ± 0.03° C (< ±0.054° F) over the range of from 0° to 50° C (32° to 122° F). The full measurement range is -40° to 100° C (-40° to 212° F). A selectable measurement-averaging feature further improves accuracy. Reliable service is assured by a stainless steel sensor tip and robust cable rated for immersion in water up to 50° C for up to 1 year. This model has a cable length of 17m.


    $120
    Add Extended warranty for $12.00/unit?

    Yes No thanks

    (this choice will apply to all existing S-TMB-M017 in your cartquote request)

  • A temperature sensor for use with HOBO U-Series, UX120-006M external-channel data loggers or ZW series wireless datanodes. This model measures temperature in air, water, or soil. Accuracy and resolution vary according with attached logger model. Measurement range is -40° to 50°C (-40° to 122°F) in water or soil, -40° to 100°C (-40° to 212°F) in air; response time is minutes typical to 90% in air moving 1 m/sec (2.2 mph); response time in stirred water is 1 minute typical to 90%. This model sensor is attached to a 15.2m (50 ft) cable.

    $50

    x
    Full Product Details
    TMC50-HD Sensor

    A temperature sensor for use with HOBO U-Series, UX120-006M external-channel data loggers or ZW series wireless datanodes. This model measures temperature in air, water, or soil. Accuracy and resolution vary according with attached logger model. Measurement range is -40° to 50°C (-40° to 122°F) in water or soil, -40° to 100°C (-40° to 212°F) in air; response time is minutes typical to 90% in air moving 1 m/sec (2.2 mph); response time in stirred water is 1 minute typical to 90%. This model sensor is attached to a 15.2m (50 ft) cable.


    $50

  • UA-002-64

    Optical Interface for data transfer

    This miniature data logger can record temperature and relative light levels. Complete with waterproof casing, this product is designed for indoor, outdoor, and underwater deployment. This model can store approximately 52,000 measurments of 10-bit readings.

    Add Extended warranty for $6.40/unit?

    Yes No thanks

    (this choice will apply to all existing UA-002-64 in your cartquote request)
    $64

    x
    Full Product Details
    UA-002-64 Data Logger

    Optical Interface for data transfer

    This miniature data logger can record temperature and relative light levels. Complete with waterproof casing, this product is designed for indoor, outdoor, and underwater deployment. This model can store approximately 52,000 measurments of 10-bit readings.


    $64
    Add Extended warranty for $6.40/unit?

    Yes No thanks

    (this choice will apply to all existing UA-002-64 in your cartquote request)

  • A temperature sensor for use with HOBO U-Series, UX120-006M external-channel data loggers, or ZW series wireless datanodes. This model measures temperature in air, water, or soil. Accuracy and resolution vary according with attached data logger model. Measurement range is -40° to 50°C (-40° to 122°F) in water or soil, -40° to 100°C (-40° to 212°F) in air; response time is minutes typical to 90% in air moving 1 m/sec (2.2 mph); response time in stirred water is 1 minute typical to 90%. This model sensor is attached to a 0.3m (1 ft) cable.

    $35

    x
    Full Product Details
    TMC1-HD Sensor

    A temperature sensor for use with HOBO U-Series, UX120-006M external-channel data loggers, or ZW series wireless datanodes. This model measures temperature in air, water, or soil. Accuracy and resolution vary according with attached data logger model. Measurement range is -40° to 50°C (-40° to 122°F) in water or soil, -40° to 100°C (-40° to 212°F) in air; response time is minutes typical to 90% in air moving 1 m/sec (2.2 mph); response time in stirred water is 1 minute typical to 90%. This model sensor is attached to a 0.3m (1 ft) cable.


    $35

  • UA-001-64

    Optical Interface for data transfer

    A miniature, waterproof one-channel temperature data logger, this model is value-priced for short-term shipping applications or long-term deployment. Data logger alarm LEDs flash if temperatures have exceeded user-set levels and delay options, and provide visible verification that temperatures have been within the desired range throughout deployment. This 64K model stores approximately 52K of 10-bit temperature readings. For accurate temperature measurement in sunlight a solar radiation shield is required (RS1 Solar Radiation Shield, assembly required; M-RSA pre-assembled Solar Radiation Shield).

    Add Extended warranty for $5.90/unit?

    Yes No thanks

    (this choice will apply to all existing UA-001-64 in your cartquote request)
    $59

    x
    Full Product Details
    UA-001-64 Data Logger

    Optical Interface for data transfer

    A miniature, waterproof one-channel temperature data logger, this model is value-priced for short-term shipping applications or long-term deployment. Data logger alarm LEDs flash if temperatures have exceeded user-set levels and delay options, and provide visible verification that temperatures have been within the desired range throughout deployment. This 64K model stores approximately 52K of 10-bit temperature readings. For accurate temperature measurement in sunlight a solar radiation shield is required (RS1 Solar Radiation Shield, assembly required; M-RSA pre-assembled Solar Radiation Shield).


    $59
    Add Extended warranty for $5.90/unit?

    Yes No thanks

    (this choice will apply to all existing UA-001-64 in your cartquote request)
  • S-TMB-M002

    The 12-bit Temperature Smart Sensor provides < ± 0.2° C total accuracy (< ±0.36° F) and resolution of < ± 0.03° C (< ±0.054° F) over the range of from 0° to 50° C (32° to 122° F). The full measurement range is -40° to 100° C (-40° to 212° F). A selectable measurement-averaging feature further improves accuracy. Reliable service is assured by a stainless steel sensor tip and robust cable rated for immersion in water up to 50° C for up to 1 year. This model has a cable length of 2m.

    Add Extended warranty for $9.50/unit?

    Yes No thanks

    (this choice will apply to all existing S-TMB-M002 in your cartquote request)
    $95

    x
    Full Product Details
    S-TMB-M002 Sensor

    The 12-bit Temperature Smart Sensor provides < ± 0.2° C total accuracy (< ±0.36° F) and resolution of < ± 0.03° C (< ±0.054° F) over the range of from 0° to 50° C (32° to 122° F). The full measurement range is -40° to 100° C (-40° to 212° F). A selectable measurement-averaging feature further improves accuracy. Reliable service is assured by a stainless steel sensor tip and robust cable rated for immersion in water up to 50° C for up to 1 year. This model has a cable length of 2m.


    $95
    Add Extended warranty for $9.50/unit?

    Yes No thanks

    (this choice will apply to all existing S-TMB-M002 in your cartquote request)

  • A temperature sensor for use with HOBO U-Series, UX120-006M external-channel data loggers or ZW series wireless data nodes. This model measures temperature in air, water, or soil. Accuracy and resolution vary according with attached logger model. Measurement range is -40° to 50°C (-40° to 122°F) in water or soil, -40° to 100°C (-40° to 212°F) in air; response time is minutes typical to 90% in air moving 1 m/sec (2.2 mph); response time in stirred water is 1 minute typical to 90%. This model sensor is attached to a 1.8m (6ft) cable.

    $39

    x
    Full Product Details
    TMC6-HD Sensor

    A temperature sensor for use with HOBO U-Series, UX120-006M external-channel data loggers or ZW series wireless data nodes. This model measures temperature in air, water, or soil. Accuracy and resolution vary according with attached logger model. Measurement range is -40° to 50°C (-40° to 122°F) in water or soil, -40° to 100°C (-40° to 212°F) in air; response time is minutes typical to 90% in air moving 1 m/sec (2.2 mph); response time in stirred water is 1 minute typical to 90%. This model sensor is attached to a 1.8m (6ft) cable.


    $39

  • UA-001-08

    Optical Interface for data transfer

    This value-priced data logger is both miniature and waterproof, making it a sensible monitoring solution for specific temperature monitoring applications. The HOBO Pendant® Temperature/Alarm Data Logger has one channel and is recommended for short-term shipping or long-term monitoring. This data logger features a visible LED light indicator, which warns users when preset parameters have been exceeded. This model stores 6.5K of 10-bit temperature readings. Use a solar radiation shield for accurate temperature measurement in sunlight applications. See RS1 Solar Radiation Shield (assembly required) and M-RSA (pre-assembled) Solar Radiation Shield.

    Add Extended warranty for $4.20/unit?

    Yes No thanks

    (this choice will apply to all existing UA-001-08 in your cartquote request)
    $42

    x
    Full Product Details
    UA-001-08 Data Logger

    Optical Interface for data transfer

    This value-priced data logger is both miniature and waterproof, making it a sensible monitoring solution for specific temperature monitoring applications. The HOBO Pendant® Temperature/Alarm Data Logger has one channel and is recommended for short-term shipping or long-term monitoring. This data logger features a visible LED light indicator, which warns users when preset parameters have been exceeded. This model stores 6.5K of 10-bit temperature readings. Use a solar radiation shield for accurate temperature measurement in sunlight applications. See RS1 Solar Radiation Shield (assembly required) and M-RSA (pre-assembled) Solar Radiation Shield.


    $42
    Add Extended warranty for $4.20/unit?

    Yes No thanks

    (this choice will apply to all existing UA-001-08 in your cartquote request)