HOBO Data Loggers by Onset
Based on Cape Cod, Massachusetts, Onset has sold more than 2.5 million data loggers since the company’s founding in 1981. Onset has designed and manufactured its HOBO data loggers on-site at its headquarters on Cape Cod, Massachusetts for more than 30 years. read more
Onset is a world leader in data loggers. Their HOBO data logger and weather station products are used around the world in a broad range of monitoring applications, from verifying the performance of green buildings and renewable energy systems to agricultural and coastal research.
Available Products by HOBO Data Loggers by Onset
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Bluetooth Smart-enabled data logger is designed for wireless communication with Apple or Android mobile devices
$135.00
In Stock
Measures barometric pressure, leaf wetness, light intensity, rainfall, relative humidity, soil moisture, temperature, and wind
$2,099.00
Cloud-based, research-grade data logging weather station with plug-and-play convenience
Starting at
$899.00
Temperature & humidity models available, 84,650 measurements, 1 second to 18 hours sampling rates
Analog, thermocouple and pulse data logger options, high performance and high accuracy 4-channel data loggers
Measures and transmits temperature data wirelessly to mobile devices via Bluetooth Low Energy (BLE) technology.
$45.00
In Stock
Water Level, barometric pressure, pressure (absolute), temperature measurements, used in wide range of environmental applications
Fully web-configurable indoor data logger with built-in web server & 15 sensor inputs for current, voltage, power and more
$499.00
In Stock
Multi-channel energy and environmental monitoring, records up to 4-channels, 43,000 measurements
Bluetooth low energy-enabled temperature and humidity loggers designed for wireless communication with a mobile device
Fully web-configurable indoor data logger with built-in web server & 30 sensor inputs for power, voltage, current and more
$850.00
In Stock
Weatherproof data logger for multi-channel monitoring of microclimates, accepts up to five plug-and-play Smart Sensors
$220.00
Water level data logger offers convenient wireless setup and download from mobile devices via Bluetooth Low Energy technology
Starting at
$595.00
Waterproof to 300 meters (1,000 feet), durable logger for measuring water temperature, 12-bit resolution, ±0.2°C accuracy
$133.00
Waterproof, Bluetooth low energy-enabled temperature loggers designed for wireless communication with a mobile device
Rugged data logging weather station with out-of-the-box convenience
$1,459.00
Waterproof to 120 meters (400 feet), durable streamlined case for extended deployment in fresh or salt water
$129.00
Economical, weatherproof, and waterproof temperature data loggers designed for short and long term monitoring applications
Starting at
$42.00
Food-grade 316 Series stainless Steel, 43,000 measurements, -40 to 257°F (-40 to 125°C) temp range
Starting at
$272.00
Bluetooth low energy-enabled monitoring of pH in both freshwater and saltwater environments
$695.00
DO and temperature monitoring, 0.2 mg/L accuracy, 0 to 30 mg/L measuring range
$1,250.00
Water level, pressure & temperature, ideal for wells, streams, lakes, and freshwater wetlands
4-Channel external data logger can employ multiple energy and environmental sensors, ranging from amps to temperature
$249.00
Records up to 15 channels, 512K nonvolatile flash data storage, for energy and industrial monitoring applications
$364.00
Wirelessly monitor and transmit real-time building performance data, scales up to a network of 100 nodes
Starting at
$186.00
Up to 100ft level depth, 13ft for barometric pressure, and temperatures from -4 to 122°F
Starting at
$1,137.00
Fast reliable measurements of state, pulse, event, runtime, light on/off, motor on/off, occupancy/light
Measures power and energy consumption of 120V office equipment plug loads, 0.5% accuracy
$239.00
In Stock
Bluetooth Smart enabled data logger stores and wirelessly transmits CO2, temperature and humidity readings
$595.00
In Stock
Weatherproof loggers for outdoor temperature and humidity measurements, high-accuracy measurements
Starting at
$145.00
Indoor single channel thermocouple data logger, types J, K, T, E, R, S, B, or N with temperature ranges from -436 to 3,308°F
$139.00
In Stock
Rainfall and temperature measurements, aluminum housing and 15.4 cm (6.06 in) collector ring
Starting at
$420.00
Measurements of tilt, acceleration and motion, waterproof housing for wet or underwater use
$83.00
Kit includes: U20-001-01 HOBO data logger (13', 30', 100' ranges available), BASE-U-4 Base Station and HOBOware Pro Software
Starting at
$604.00
Measures temperature, events and rainfall, event-based data storage provides detailed data and efficient memory usage
$105.00
Non-contact capacitive sensor, conductivity monitoring for freshwater and stable saltwater applications
Starting at
$750.00
Display, record, and get notified of temperature and humidity conditions, 43,000 measurements
Starting at
$186.00
16 MB memory, 1 million measurements, continuous logging with up to 10-minute connection rates via 4G cellular data plans
Starting at
$620.00
Highly accurate split-core current transformer designed for single handed operation
Starting at
$45.00
Plot or export data to spreadsheets, time saving tools to fast setup, readout and export, compatible with all HOBO data loggers
$99.00
In Stock
HOBOnet wireless sensor provides average wind speed, highest 3-second wind gust, and average wind direction
$389.00
HOBOnet sensor measures a 1-liter volume of soil and transmits data within a self-healing mesh network for greater reliability and range
$249.00
HOBOnet sensor measures in 0.2mm increments, and includes bird spikes and locking debris screen to minimize interference
$279.00
Measures a large 1-liter volume of soil, providing a more accurate picture of average soil moisture
$139.00
Compatible with all HOBO U-Series loggers with optic USB, waterproof up to 20m (66ft), requires HOBOware Pro software
$249.00
Compact, no-lead water flow meter sensor that measures cold and hot water flow rates, with 59 inch cable length
$207.00
HOBOnet high-accuracy sensor with stainless steel tip rated for immersion in water or soil up to 122°F for up to 1 year
$189.00
In Stock
Adds the ability for users to be able to measure compressed air flow (SCFM), fits 1 inch or 2 inch steel pipes
Starting at
$495.00
Split-core CT sensor with multiple current ratings, overvoltage protection circuit & hinged body is easy to install in tight spaces
Connects the R.M. Young Marine Wind Monitor Sensor (model 05106) with Onset's line of research-grade weather stations
$150.00
Used to offload data from any HOBO data logger with an Optic USB interface, splash resistant
$124.00
In Stock
External input cable with 13mm (0.5") tinned braided wire leads, 1.8 m (6 foot) long cable
$10.00
HOBOnet sensor with range of 1,500 to 2,000ft, wireless mesh self-healing technology, and up to 50 wireless sensors per network
$249.00
Module and mote for installation in a RX3000 station, and designed to work with HOBOnet wireless sensor network
$149.00
Measures temperature in air, water, or soil, 1 ft, 6 ft, 20 ft and 50 ft lengths available
Starting at
$35.00
5 Watt and 15 Watt solar panels work with the RX3000, MicroRX, and the U30-NRC, reduce system costs
Starting at
$79.00
Routes data from networked HOBO data logger to ensure the data is transmitted back to the receiver
$175.00
Measure either air pressure or velocity, unidirectional or bidirectional, switch selectable
$240.00
0.01" Rain Gauge (2m cable) Smart Sensor, measures rainfall rates up to five inches per hour
$410.00
HOBOnet sensor measures in 0.01in increments, and includes bird spikes and locking debris screen to minimize interference
$279.00
Flexible self powered rope CT designed to be used where regular split core CTs cannot fit
HOBOnet sensor includes wireless mesh self-healing technology, and withstands extended use in high-humidity environments
$249.00
Measure wind speed from 0 to 76 m/s (0 to 170 mph), sensor survives through 170 mph
$239.00
6 feet in length, type J, K or T thermocouples,
Starting at
$19.00
Split-core AC Current Sensor, measures as low as 2 amps and as high as 600 amps
Starting at
$105.00
Ultrasonic wind, speed and direction smart sensor, plug-and-play with HOBO stations
$860.00
Connects top end of waterl level data loggers to the sensor end to form a complete system
Starting at
$90.00
Sensor uses a high-frequency (70 MHz) circuit that provides good accuracy even in high-salinity and sandy soils.
$139.00
12" (30cm) stainless steel probe, 3/16” (0.5cm) in diameter, 32 to 1650°F (0 to 900°C) measuring range
$47.00
HOBOnet silicon pyranometer sensor is calibrated to measure light intensity for frequencies relevant for solar radiation
$299.00
Plated copper temperature sensor probe that can be mounted to a pipe or flat surface
$39.00
The HOUSING-U2X Housing is for use in Underwater environments
$46.00
Reads out data from systems in the field for transfer to a host computer, preserves data in nonvolatile memory
$281.00
Accu-CT revenue-grade, split-core current transformer, 20, 50, 100 and 250 A range options, one-handed opening and closing mechanism
Starting at
$45.00
Set includes research-grade plug-and-play Wind Speed Smart Sensor and the Wind Direction Smart Sensor
$560.00
True RMS up to the 21st harmonic 60 Hz, One to three phase AC system
$625.00
Fast optical infrared (IR) communication for easy logger launch and readout of HOBO Pendant loggers
$70.00
Temp, and water temp measurements, stainless steel sensor tip and robust cable, 2m, 6m and 17m length options
Starting at
$95.00
HOBOnet repeater ideal for use for obstructions between network motes and the station, or to extend transmission range of motes
$129.00
In Stock
Photosynthetically Active Radiation (PAR) Smart Sensor, designed to detect photons between 400-700 nm in wave length
$220.00
Barometric Pressure Smart Sensor for use with the HOBO Remote Monitoring Station Data Loggers
$249.00
For connecting a sensor with a 4-20mA output to a HOBO U12, UX120, or ZW series external-channel data logger
$25.00
Keyspan USB-to-serial adaptor for use with all RS-232 serial devices and a PC 3.5 Interface cable for PC computers
$59.00
Reads out data from systems in the field for transfer to a host computer
$281.00
RX remote monitors require a data plan selection in order to function
Starting at
$0.00
Provide analog sensor inputs of 0 to 5, 10 or 24 VDC, 1.9 m (6.3 ft) long cable
The Maintenance Kit includes the Calibration Kit (MX2500-CAL-KIT) and Storage Solution (MX2500-STORE-SOLN)
$65.00
Replacement dissolved oxygen sensor cap that has a 2-year shelf life and 6-month deployment life
$85.00
Includes four analog inputs that support excitation power, scaling, and statistics measurements
$120.00
In Stock
Measures up to 3 separate branch circuits simultaneously, accurate measurement of multiple single phase or each phase of 3-phase configurations
$249.00
0.2 mm Rainfall (2m cable) Smart Sensor, measures rainfall rates up to 12.7 cm per hour
$410.00
Interfaces with any sensor providing a 4-20 mA signal to connect to smart sensor compatible data loggers
$85.00
In Stock
Collects incoming logged sensor data from HOBO data nodes and transfers the data to the computer via USB cable
$219.00
The Calibration Kit includes pH 4.01, pH 7.00, pH 10.00 buffer solutions (475 mL bottles), and the 4 oz. calibration beaker
$45.00
Self-powered transformer for monitoring sine wave, single-phase AC voltage. 150 anf 300 volts RMS range options
Starting at
$139.00
Solar Radiation (Silicon Pyranometer) Sensor, measurement range: 0 to 1280 W/m²
$210.00
Measures up to 200 Amps of DC current in both flow directions, adjustable span range
$245.00
pH 4.01, 7.00, and 10.00 Calibration Solutions (475 mL bottles) are used to calibrate the pH electrode in the HOBO MX pH Logger.
Starting at
$14.00
Male-to-male extender cable, plus a female-to-female adaptor
Starting at
$20.00
300 or 800 amp sensors, split-core installation eliminates the need to remove conductors, accurate electronic pulse output
2 input channels of 0 to 20mA and/or 0 to 20 VDC, provides 12V sensor excitation and user-configurable warm-up
$89.00
Measurement range: 0 (dry) to 100% (wet), capacitive grid sensor type
$132.00
Three 100 amp split core current transformers, 480 Volts AC rms input voltage
$845.00
Connects sensors with pulse outputs to loggers with smart-sensor inputs
HOBOnet sensor measures photosynthetically active radiation (PAR) and light intensity for frequencies relevant to photosynthesis
$309.00
Split-core design for fast, easy installation, up to 600A measurements, accuracy at 10% to 130% of rated current
Starting at
$55.00
Measure run-time (time-of-use) of equipment when combined with compatible HOBO data logger
$89.00
Allows for up to three individual relays to be activated or pulsed in response to alarms
$120.00
In Stock
Measures 1, 2, or 3 phases in 2, 3, or 4 wire configurations, pulse output, use with wide variety of CT's
Starting at
$269.00
Replacement pH electrode, suited for environmental monitoring of streams, lakes, rivers, estuaries, and oceans
$115.00
Connects the R.M. Young Wind Monitor-AQ Sensor (model 05305) with Onset's line of research-grade weather stations
$150.00
Measures 1, 2, or 3 phases in 2, 3, or 4 wire configurations
$229.00
Research-grade plug-and-play sensor for measuring and logging wind direction data
$350.00
4 oz calibration beaker can be used to calibrate the HOBO MX pH Logger and to store calibration solutions.
$4.00
Anti-Biofouling Copper Guard can be used in addition to the standard electrode guard
$20.00
Compliance certificate states that the individual data logger is in compliance with its specification as described in its product manual
Call for pricing
External Input Cable to Measure DC Voltage: For 0-5 Vdc Max.
$29.00
6.5-inch long, xenoy weatherproof housing that protects the connection between sensors and sensor extension cables
$30.00
Split-core design for fast, easy installation, measures up to 75A, output 0.333 Volt AC at rated current
Starting at
$35.00
Used to properly store and condition the pH electrode that is used with the HOBO MX pH Logger
$45.00
Full cross arm mounting of two wind sensors for use with Onset tripods or masts
$72.00
Connects sensors with pulse outputs to loggers with smart-sensor inputs, compatible with contact closures
Starting at
$74.00
Measures True RMS for accurate readings of sinusoidal and non-sinusoidal waveforms, ranges of 150, 300, 600 Volts AC
Starting at
$79.00
Digital filtering improves measurement accuracy with 32 readings/sample, 12-bit resolution
$79.00
In Stock
Replaces standard protective guard & uses copper windings to reduce bio-fouling while still allowing good water flow to the sensor
$95.00
Replaces the original sensor end cap that ships with the HOBO MX pH Logger
$95.00