Onset HOBO Data Loggers

Onset is an established global leader in the design and manufacture of data loggers, sensors, software, and accessories. The company’s HOBO brand of temperature, humidity, and water-level data loggers are made in the USA and used by companies around the world for accurate and reliable environmental assessments. HOBO® data loggers suit a broad scope of environmental monitoring applications, from office buildings to manufacturing plants and coastal research facilities. Transcat offers a complete selection of Onset products, including the HOBO brand of data loggers, external sensors, and other valuable products that meet monitoring and recording demands. We also offer ISO 17025 accredited temperature calibration and humidity calibration services for Onset HOBO and hundreds of other manufacturers.

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  1. Onset HOBO Data Loggers HUM-UPS-500
    Onset HOBO Data Loggers HUM-UPS-500 Replacement RH Sensor UX100, U10 or H08
    Order #: HUM-UPS-500
    Mfg #: HUM-UPS-500
    Availability: Ships in 3-4 weeks
    $20.00
    Replacement RH Sensor UX100, U10 or H08 Learn More
  2. Onset HOBO Data Loggers HRB-U30-S100
    Onset HOBO Data Loggers HRB-U30-S100 U30 Replacement 10 Ahr battery
    Order #: HRB-U30-S100
    Mfg #: HRB-U30-S100
    Availability: Ships in 3-4 weeks
    $45.00
    U30 Replacement 10 Ahr battery Learn More
  3. Onset HOBO Data Loggers HP-B
    Onset HOBO Data Loggers HP-B HOBO Pro Replacement Battery & O-Ring
    Order #: HP-B
    Mfg #: HP-B
    Availability: Ships in 3-4 weeks
    $15.00
    HOBO Pro Replacement Battery & O-Ring Learn More
  4. Onset HOBO Data Loggers COUPLER2-E
    Onset HOBO Data Loggers COUPLER2-E Coupler for U23 HOBO Pro v2
    Order #: COUPLER2-E
    Mfg #: COUPLER2-E
    Availability: Ships in 3-4 weeks
    $15.00
    Coupler for U23 HOBO Pro v2 Learn More
  5. Onset HOBO Data Loggers COUPLER2-D
    Onset HOBO Data Loggers COUPLER2-D Coupler for UTBI Tidbit v2
    Order #: COUPLER2-D
    Mfg #: COUPLER2-D
    Availability: Ships in 3-4 weeks
    $15.00
    Coupler for UTBI Tidbit v2 Learn More
  6. Onset HOBO Data Loggers COUPLER2-B
    Onset HOBO Data Loggers COUPLER2-B Coupler for U20 Water Level
    Order #: COUPLER2-B
    Mfg #: COUPLER2-B
    Availability: Ships in 3-4 weeks
    $15.00
    Coupler for U20 Water Level Learn More
  7. Onset HOBO Data Loggers COUPLER2-A
    Onset HOBO Data Loggers COUPLER2-A Coupler for UA Pendant
    Order #: COUPLER2-A
    Mfg #: COUPLER2-A
    Availability: Ships in 3-4 weeks
    $15.00
    Coupler for UA Pendant Learn More
  8. Onset HOBO Data Loggers CASE-VENTED-LOCK
    Onset HOBO Data Loggers CASE-VENTED-LOCK Lockable, vented security case
    Order #: CASE-VENTED-LOCK
    Mfg #: CASE-VENTED-LOCK
    Availability: Ships in 3-4 weeks
    Special Price $33.25 Regular Price $47.00
    Lockable, vented security case Learn More
  9. Onset HOBO Data Loggers CABLE-DR-5.0
    Onset HOBO Data Loggers CABLE-DR-5.0 5m Direct Read Cable
    Order #: CABLE-DR-5.0
    Mfg #: CABLE-DR-5.0
    Availability: Ships in 3-4 weeks
    Special Price $85.50 Regular Price $113.00
    5m Direct Read Cable Learn More
  10. Onset HOBO Data Loggers CABLE-DR-060
    Onset HOBO Data Loggers CABLE-DR-060 060m Direct Read Cable
    Order #: CABLE-DR-060
    Mfg #: CABLE-DR-060
    Availability: Ships in 3-4 weeks
    Special Price $294.50 Regular Price $388.00
    060m Direct Read Cable Learn More
  11. Onset HOBO Data Loggers CABLE-DR-030
    Onset HOBO Data Loggers CABLE-DR-030 030m Direct Read Cable
    Order #: CABLE-DR-030
    Mfg #: CABLE-DR-030
    Availability: Ships in 3-4 weeks
    Special Price $180.50 Regular Price $238.00
    030m Direct Read Cable Learn More
  12. Onset HOBO Data Loggers CABLE-DR-015
    Onset HOBO Data Loggers CABLE-DR-015 015m Direct Read Cable
    Order #: CABLE-DR-015
    Mfg #: CABLE-DR-015
    Availability: Ships in 3-4 weeks
    Special Price $123.50 Regular Price $163.00
    015m Direct Read Cable Learn More
  13. Onset HOBO Data Loggers BOOT-TIDBIT-BK
    Onset HOBO Data Loggers BOOT-TIDBIT-BK Boot for TidbiT, Black - 5 pack
    Order #: BOOT-TIDBIT-BK
    Mfg #: BOOT-TIDBIT-BK
    Availability: Ships in 3-4 weeks
    $31.00
    Boot for TidbiT, Black - 5 pack Learn More
  14. Onset HOBO Data Loggers BOOT-BLK
    Onset HOBO Data Loggers BOOT-BLK Boot for WTemp Pro, Black
    Order #: BOOT-BLK
    Mfg #: BOOT-BLK
    Availability: Ships in 3-4 weeks
    $26.00
    Boot for WTemp Pro, Black Learn More
  15. Onset HOBO Data Loggers MX2301A
    Onset HOBO Data Loggers MX2301A Temp/RH Data Logger w/Bluetooth
    Order #: MX2301A
    Mfg #: MX2301A
    Availability: Ships in 3-4 weeks
    $199.00
    Temp/RH Data Logger w/Bluetooth Learn More
  16. Onset HOBO Data Loggers MX2302A
    Onset HOBO Data Loggers MX2302A HOBO External Temp/RH Data Logger,-40-158F,RH: 0-100%
    Order #: MX2302A
    Mfg #: MX2302A
    Availability: Ships in 3-4 weeks
    $235.00
    HOBO External Temp/RH Data Logger,-40-158F,RH: 0-100% Learn More
  17. Onset HOBO Data Loggers UX90-LIGHT-PIPE-1 1ft.Fiber Optic Attachment 002,005,006
    Onset HOBO Data Loggers UX90-LIGHT-PIPE-1 1ft.Fiber Optic Attachment 002,005,006
    Order #: UX90-LIGHT-PIPE-1
    Mfg #: UX90-LIGHT-PIPE-1
    Availability: Ships in 3-4 weeks
    $35.00
    1ft.Fiber Optic Attachment 002,005,006 Learn More
  18. Onset CX402-VFC215 InTemp VFC Data Logger, 2M 15mL
    Onset HOBO Data Loggers CX402-VFC215 InTemp VFC Data Logger, 2M 15mL
    Order #: CX402-VFC215
    Mfg #: CX402-VFC215
    Availability: Ships in 3-4 weeks
    $169.00
    InTemp VFC Data Logger, 2M 15mL Learn More
  19. Onset CX402-T415 InTemp Data Logger, 4M Temp Probe, 15mL bottle
    Onset HOBO Data Loggers CX402-T415 InTemp Data Logger, 4M Temp Probe, 15mL bottle
    Order #: CX402-T415
    Mfg #: CX402-T415
    Availability: Ships in 3-4 weeks
    $185.00
    InTemp Data Logger, 4M Temp Probe, 15mL bottle Learn More
  20. Onset CX402-T215 InTemp Temperature Logger, 2m probe and 15 mL glycol bottle
    Onset HOBO Data Loggers CX402-T215 InTemp Temperature Logger w/ 2m probe and 15 mL glycol bottle
    Order #: CX402-T215
    Mfg #: CX402-T215
    Availability: Ships in 3-4 weeks
    Special Price $168.00 Regular Price $175.00
    InTemp Temperature Logger w/ 2m probe and 15 mL glycol bottle Learn More
  21. Onset HOBO Data Loggers S-RGF-M002 Davis (0.2mm) Rain GaugeSmart Sensor
    Onset HOBO Data Loggers S-RGF-M002 Davis (0.2mm) Rain Gauge Smart Sensor
    Order #: S-RGF-M002
    Mfg #: S-RGF-M002
    Availability: Ships in 3-4 weeks
    $269.00
    Davis (0.2mm) Rain Gauge Smart Sensor Learn More
  22. Onset HOBO Data Loggers BHW-PRO-USB
    Onset HOBO Data Loggers BHW-PRO-USB Hoboware Pro w/Cable USB Drive
    Order #: BHW-PRO-USB
    Mfg #: BHW-PRO-USB
    Availability: Ships in 3-4 weeks
    $99.00
    Hoboware Pro w/Cable USB Drive Learn More
  23. Onset HOBO Data Loggers MX2204
    Onset HOBO Data Loggers MX2204 HOBO TidbiT Temp Data Logger 5000'
    Order #: MX2204
    Mfg #: MX2204
    Availability: Ships in 3-4 weeks
    $165.00
    HOBO TidbiT Temp Data Logger 5000' Learn More
  24. Onset HOBO Data Loggers MX2203
    Onset HOBO Data Loggers MX2203 HOBO TidbiT Temp Data Logger 400'
    Order #: MX2203
    Mfg #: MX2203
    Availability: Ships in 3-4 weeks
    $155.00
    HOBO TidbiT Temp Data Logger 400' Learn More
  25. HOBO External Temp Data Logger -40 to 212F
    Onset HOBO Data Loggers MX2304 HOBO External Temp Data Logger -40 to 212F
    Order #: MX2304
    Mfg #: MX2304
    Availability: Ships in 3-4 weeks
    $175.00
    HOBO External Temp Data Logger -40 to 212F Learn More
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