Thermocouple Data Loggers & Sensors

Onset offers a range of high-accuracy, low-cost thermocouple loggers, including both four-channel and single-channel models. HOBO Thermocouple Loggers are used in a broad range of monitoring applications, from profiling oven temperatures during food processing to measuring concrete temperatures during the curing process.


Results: 1 to 16 of 86
  • U30-NRC-SYS-C

    The new HOBO Weather Station Starter Kit combines our most rugged data logging weather station with out-of-the-box convenience.

    The U30/NRC accepts up to 10 plug-and-play Smart Sensors. Just plug in your sensor and it’s automatically recognized – no programming, wiring or calibration necessary. With this kit you can measure temperature, relative humidity, wind speed/direction. Simply select the HOBO Weather Station starter system and your choice of either a 2-Meter or 3-Meter Tripod Kit and go!

    Software ordered separately. Compatible with HOBOware and HOBOware Pro software for logger setup, graphing and analysis. 

    $1399

  • 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

  • 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

  • U20L-01

    The HOBO U20L-001 is a low-cost, research-grade water level data logger for continuously measuring water level and temperature in a wide range of underwater environments. It features 0.1% measurement accuracy, a polypropylene housing for use in both fresh and salt water, and a non-vented design for convenient and hassle-free deployment.

    Learn More!

    Helpful Links:

    Sensor location drawing
    Barometric Pressure Compensation Assistant Demo
    Multi-rate Sampling Demo

    Add Extended warranty for $29.90/unit?

    Yes No thanks

    (this choice will apply to all existing U20L-01 in your cartquote request)
    $299

  • U20L-02

    The HOBO U20L-002 is a low-cost, research-grade water level data logger for continuously measuring water level and temperature in a wide range of underwater environments. It features 0.1% accuracy, a polypropylene housing for use in both fresh and salt water, and a non-vented design for convenient and hassle-free deployment.

    Learn More!

    Helpful Links:

    Sensor location drawing
    Barometric Pressure Compensation Assistant Demo
    Multi-rate Sampling Demo

    Add Extended warranty for $29.90/unit?

    Yes No thanks

    (this choice will apply to all existing U20L-02 in your cartquote request)
    $299

  • U20L-04

    The HOBO U20L-004 is a low-cost, research-grade water level data logger for continuously measuring water level and temperature in a wide range of underwater environments. It features 0.1% measurement accuracy, a polypropylene housing for use in both fresh and salt water, and a non-vented design for convenient and hassle-free deployment.

    Learn More!

    Helpful Links:

    Sensor location drawing
    Barometric Pressure Compensation Assistant Demo
    Multi-rate Sampling Demo

    Add Extended warranty for $29.90/unit?

    Yes No thanks

    (this choice will apply to all existing U20L-04 in your cartquote request)
    $299

  • UX120-006M

    The HOBO UX120-006M Analog Data Logger is a high-performance, LCD display data logger for building performance monitoring applications.

    As Onset’s highest-accuracy data logger, it provides twice the accuracy of previous models, a deployment-friendly LCD, and flexible support up to four external sensors for measuring temperature, current, CO2, voltage, and more.

    The data logger is ideal for energy audits, building commissioning studies, equipment scheduling, and more.

    Add Extended warranty for $13.90/unit?

    Yes No thanks

    (this choice will apply to all existing UX120-006M in your cartquote request)
    $139

  • UX120-014M

    The HOBO UX120 Thermocouple Data Logger is a four-channel LCD data logger for measuring and recording temperature in a broad range of monitoring applications. The data logger makes it easy and convenient to record temperatures over a broad range (-260 to 1820⁰ C) and can accept up to four J, K, T, E, R, S, B, or N type probes.

    In addition to accepting four thermocouple probes, the data logger features an internal temperature sensor for logging ambient temperatures, further extending the range of application possibilities.

    Onset also offers a single-channel thermocouple data logger, the HOBO UX100-014M.  

    Add Extended warranty for $27.50/unit?

    Yes No thanks

    (this choice will apply to all existing UX120-014M in your cartquote request)
    $275

  • U20-001-02-Ti

    The HOBO Water Level Titanium is recommended for saltwater deployment for recording water levels and temperatures in wetlands and tidal areas. This data logger features high accuracy at a great price and HOBO ease-of-use, with no cumbersome vent tubes or desiccants to maintain.

    Helpful Links:

    Sensor location drawing
    Barometric Pressure Compensation Assistant Demo
    Multi-rate Sampling Demo

    Add Extended warranty for $59.50/unit?

    Yes No thanks

    (this choice will apply to all existing U20-001-02-Ti in your cartquote request)
    $595

  • UX100-014M

    The HOBO UX100-014M Single Channel Thermocouple data logger records temperature in indoor environments with thermocouple sensors (sold separately). Designed for a broad range of monitoring applications – from industrial process monitoring to concrete maturity testing – the logger provides exceptional flexibility by accepting J, K, T, E, R, S, B or N type thermocouple probes.

    Onset also offers a four-channel thermocouple data logger, the HOBO UX120-014M.

    Add Extended warranty for $13.90/unit?

    Yes No thanks

    (this choice will apply to all existing UX100-014M in your cartquote request)
    $139

  • UX100-023

    The HOBO UX100-023 External Temperature/Relative Humidity data logger records temperature and relative humidity in an indoor environment with its external sensor. Ideal for monitoring occupant comfort in office buildings, tracking food storage conditions in warehouses, logging temperature trends in server rooms, and measuring humidity levels in museums.

    Add Extended warranty for $18.90/unit?

    Yes No thanks

    (this choice will apply to all existing UX100-023 in your cartquote request)
    $189

  • UX100-003

    The HOBO UX100-003 Temperature/Relative Humidity data logger records temperature and relative humidity (within 3.5% accuracy) in indoor environments with its integrated sensors. The data logger is ideal for monitoring occupant comfort in office buildings, tracking food storage conditions in warehouses, logging temperature trends in server rooms, and measuring humidity levels in museums.

    Add Extended warranty for $8.90/unit?

    Yes No thanks

    (this choice will apply to all existing UX100-003 in your cartquote request)
    $89

  • UX100-011

    The HOBO UX100-011 Temperature/Relative Humidity data logger records temperature and relative humidity (within 2.5% accuracy) in indoor environments with its integrated sensors. This data logger is ideal for monitoring occupant comfort in office buildings, tracking food storage conditions in warehouses, logging temperature trends in server rooms, and measuring humidity levels in museums.

    Add Extended warranty for $12.50/unit?

    Yes No thanks

    (this choice will apply to all existing UX100-011 in your cartquote request)
    $125

  • UX100-001

    The HOBO UX100-001 Temperature data logger records temperature in indoor environments with its integrated sensor. The logger is ideal for monitoring occupant comfort in office buildings, tracking food storage conditions in warehouses, and logging temperature trends in server rooms.

    Add Extended warranty for $7.50/unit?

    Yes No thanks

    (this choice will apply to all existing UX100-001 in your cartquote request)
    $75

  • SYS-RX-GRMS-A

    The HOBO Green Roof Monitoring System is the ideal tool for measuring the performance of intensive and extensive green roofs. Offering reliable, research-grade performance, the web-based system enables users to monitor green roof conditions, measure stormwater runoff, improve irrigation scheduling, and maintain healthy rooftop vegetation.

    KIT INCLUDES:

    • Two S-RGB-M002 rain gauges
    • Two S-SMC-M005 soil moisture smart sensors
    • Two S-TMB-M002 soil temperature smart sensors
    • S-LIB-M-003 solar radiation smart sensor
    • M-LBB light sensor bracket
    • M-LLA light sensor level
    • S-THB-M002 air temperature/humidity sensor
    • RS3 solar radiation shield
    • S-WSET-B wind speed and direction sensor set
    • M-CAA full cross arm
    • RX3003 remote monitoring system 
    • SOLAR-6W solar panel
  • KIT-ZW-TRH

    The HOBO Wireless Temperature/Relative Humidity Monitoring Kit makes environmental monitoring fast, cost-effective, and convenient. Monitor critical conditions in real time, log data for trend analysis, and stay notified of alarm conditions via text or email – all without the hassles of wires or manual data offload.

    The kit provides convenient options for accessing your data, and includes everything you need to get set up in minutes.

    Add Extended warranty for $98.90/unit?

    Yes No thanks

    (this choice will apply to all existing KIT-ZW-TRH in your cartquote request)
    $989


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