For years, Onset has been supplying research-grade data loggers to those looking for accurate, professional data measurements. To maintain the functionality and/or enhance the capability of our data loggers, we also offer a range of parts and accessories including data shuttles, cables, adapters, replacement parts, batteries, cases and more.
The AC-SENS-2 is an AC power adapter that provides 24VDC power to sensors that require it.
A 300-foot length of 1/16-inch diameter teflon-coated stainless steel cable, coiled and bound
This solar panel is ideal for very cloudy locations, higher latitudes, and/or when connecting analog sensors with high excitation power requirements.
This solar panel is suitable for most locations. Includes 45-degree bracket for mast mounting.
The Anti-Biofouling Copper Guard can be used in addition to the standard electrode guard for protection against biofouling
The Anti-fouling Protective Guard can be used in place of the standard protective guard for protection against fouling during deployment. The anti-fouling guard uses copper windings to reduce bio-fouling, while still allowing good water flow to the sensor.
This accessory provides a convenient place to organize and mount excess sensor cable.
A 4 oz. calibration beaker that can be used to calibrate the HOBO MX pH Logger and to store calibration solutions
This Kit contains three buffer solutions and two beakers to calibrate the MX2501 pH Loggers.
This clamp allows the U23-001 or U23-004 to be mounted in the RS1 and M-RSA radiation shields.
An envelope of twelve 3/8-inch long stainless steel crimp sleeves for use with 1/16" teflon-coated stainless steel cable
The electrode storage cap is used to protect the pH electrode in the HOBO MX pH Logger
The Electrode Storage Solution is used to properly store and condition the pH electrode that is used with the HOBO MX pH Logger.
Replacement Sensor End Cap for the MX2501 pH Loggers.
The external DC power cable is used to connect a user-supplied power source to the HOBO RX3000 Monitoring Station to charge the station’s internal battery.
Grounding Kit for weather stations
For use with Onset tripods or masts, the half cross arm assures unobstructed wind measurement.
The light sensor bracket is designed for use with tripods, masts, or flat surfaces. Use to avoid obstructions and shadows that could affect your PAR or solar radiation measurements. Includes leveling screws.
Micro Station Mast Mounting Kit for H21-002 Micro station loggers
This bracket is used for mounting two PAR sensors and two solar radiation sensors on the Light Sensor Bracket to make the measurements needed to calculate the Normalized Difference Vegetation Index (NDVI).
A splash-resistant base station and couplers used to offload data from any HOBO data logger with an Optic USB interface.
A Pendant replacement parts kit that includes a case, end cap, O-ring, two screws, and silicone-based O-ring grease
pH 4.01, 7.00, and 10.00 Calibration Solutions (475 mL bottles)
Wiring kit contains the appropriate wires to connect the HOBO UX120-017 Pulse data logger to the E50B2 Power and Energy Meter and electrical panel.
Weather-resistant enclosure for mounting the HOBO UX120-014M data logger in wet, dusty, or condensing environments. Intended for short deployments where additional protection is needed.
Replacement 10 Ahr battery for U30 and RX3000
Box of five CR-2032 lithium batteries
Battery for HOBO U23 Data loggers
Replaces the original DO sensor cap that’s included with the HOBO DO Data Logger.
Small desiccants suitable for use in the Pendant (use DESICCANT5 for UA-003-64) and HOBO Pro v2 loggers, packaged as a set of 25 desiccants.
Allows users to connect up to six Smart Sensors in a water-resistant enclosure to one sensor extension cable back to HOBO stations with Smart Sensor inputs.
For temperature and relative humidity measurement accuracy in locations exposed to direct or reflected sunlight; ideal for use with the HOBO MX2300, HOBO Pendant, and U-Series data loggers.
Use the RS3-B Solar Radiation Shield with HOBO external sensors for improved temperature measurement accuracy in locations exposed to sunlight
Preassembled for quick deployment, the solar radiation shield is recommended for temperature and RH measurement accuracy in locations exposed to direct or reflected solar radiation.
The optional TidbiT thermoplastic elastomer boot provides cushioning for use in harsh conditions — offered in black to minimize underwater visibility. Five boots included.
The optional TidbiT thermoplastic elastomer boot provides cushioning for use in harsh conditions — offered in white to minimise solar radiation absorption. Five boots included.
A protective enclosure for mounting Onset's HOBO U24 conductivity and HOBO U20 water level data loggers.
The U2X Housing is a protective enclosure for mounting Onset's HOBO® UA Pendant loggers. The UAX housing is designed to allow a data logger to be mounted in harsh environments while not restricting the flow of media around the device.
A Keyspan USB-to-serial adaptor for use with all RS-232 serial devices and a PC 3.5 Interface Cable for PC computers.
A voltage lead set with alligator clips that is used to wire a WattNode terminal block connected to a WattNode KWH transducer and the voltage terminals in a circuit breaker panel.
A hard-sided case with foam inserts that holds four HOBO Water Level Loggers and an Optic USB Base Station or Waterproof Shuttle
For use with Onset tripods or masts, the full cross arm assures unobstructed wind measurement.
A 6.5-inch long, Xenoy weatherproof housing that protects the connection between sensors and sensor extension cables.
This locking well cap provides convenient mounting for HOBO loggers in wells. Used with the HOBO MX2001 it supports the logger at the top of the well for optimal wireless transmission range.
A 50-foot length of 1/16-inch diameter teflon-coated stainless steel cable, coiled and bound.
2-meter tripod with mast used for mounting loggers and other sensors in a weather station application.
3-meter tripod with mast used for mounting loggers and other sensors in a weather station application.
HOBO Weather station Guy Wire Kit
Simply drop the light sensor level over the PAR or solar radiation sensor to determine if the sensor is level.
The MX2500 Maintenance Kit includes Buffer and Storage Solutions.
This plastic-bodied electrode and the HOBO MX2501 pH and Temperature Data Logger are perfectly suited for environmental monitoring of streams, lakes, rivers, estuaries, and oceans.
A 2, 5, 10 and 25 metre Smart Sensor male-to-male extender cable, plus a female-to-female adaptor
Sodium Sulfite solution (500 mL) is used for calibrating the HOBO DO Logger at 0% saturation, which is optional.
The HOBO U-Shuttle Data Transporter provides convenient in-field data offload and relaunch of HOBO U-series loggers and HOBO Weather Stations, Micro Stations, and HOBO Energy Logger systems. The U-Shuttle's 2 x 16-character display shows current readings (for selected loggers), and logger status. An Optic USB Base Station is required for use with Optic USB loggers.
A thermoplastic elastomer boot that provides cushioning for use in harsh conditions. Offered in black to minimize underwater visibility. Protective sleeve and cap included.
Everything you’ll need for a 2-metre tripod configuration of the HOBO Weather Station or HOBO Micro Station.
This kit has everything you need for a 3-metre tripod configuration of the HOBO Weather Station or HOBO Micro Station. The 3-metre tripod accommodates moderately sloping terrain.
The HOBO Waterproof Shuttle provides convenient readout and relaunching of underwater and outdoor HOBO loggers with an Optic USB interface, and is waterproof to 20m. The HOBO Waterproof Shuttle can also be used as a base station.
The lockable, vented security case provides complete enclosure protection for HOBO data loggers. It has air circulating ports on all four sides
Temperature Buffers stabilise short variations and erratic temperature readings.
This locking well cap provides a convenient way to suspend HOBO MicroRX Water Level sensor cables in a well, and provides strain relief (especially important for long cables).
The optional MX2203 thermoplastic elastomer boot
The optional MX2204 thermoplastic elastomer boot provides cushioning for use in harsh conditions.
Replacement Couplers for HOBO Base Stations
Replacement battery for HOBO MX2300 series loggers. Lithium 2/3 AA
These optional flexible boots provide a reliable way to mount the HOBO Pendant MX2201 and MX2202 loggers to non-flat surfaces.
This is the replacement rechargeable battery pack for the solar-powered HOBO MicroRX Stations (RX2102 and RX2106) and the solar-powered HOBO MicroRX Water Level Station (RX2104).
Waterproof Enclosure for Data Loggers
The Verification Clip verifies the proper function and accuracy of HOBO MX soil moisture loggers, as well as HOBOnet T11 and HOBOnet T12 soil moisture sensors.
The AC-SENS-1 is an AC power adapter that provides 12VDC power to sensors that require it.