Canada’s Instrumentation Leader Since 1946.

Onset Accessories


AC Power Adapter for 3rd Party Sensors up to 400mA @12vdc Power

HOBOware Pro Mac/Win (USB Cable Included) Software

HOBOware Pro – Mac/Win (Download Only) Software


MX2001 Direct Read Cable

4 to 20 mA Input

AC Current Switch Sensor

Replacement Pendant Coupler for BASE-U-4

Replacement Coupler for U20L, U22, U24, and U26 Data Loggers

Compliance Certification

Replacement Battery for U23 Data Loggers (Sold Individually)

Replacement Lithium 2/3 AA

Replacement Batteries (Pack of 5)

Replacement 10 Ahr Battery for U30 and RX3000

Small Desiccant Pack (25-Count)

U2X Protective Housing

Setup Charge for NIST Traceable Certification

AC Power Adapter Adapter

NIST Temperature Point Certification

MX2300s Bracket for RS1 or M-RSA

Smart Sensor Consolidator Box Adapter

Solar Radiation Shield

Solar Radiation Shield

Smart Sensor Extension Cable (2 meter)

Weatherproof Extension Housing

FlexSmart TRMS Module (2 Channels) Sensor

FlexSmart TRMS Module (2 Channels) w/Modular Plug Sensor

FlexSmart Analog Module (2 Channels) Sensor

1-to-2 Sensor Communication Adapter Adapter

U30 Sensor Input Expander Adapter

Type K Subminiature Connector Adapter

Type J Subminiature Connect Adapter

12-bit Voltage Input Adapter Sensor

Type T Subminiature Connector Adapter

Air Velocity Sensor (0.15 to 10 m/s) (30 to 1969 fpm) Sensor

Air Velocity (0.15 to 10 m/s) (30 to 1969 fpm) Sensor

Volatile Organic Compound (VOC) Sensor

Air Velocity (0.15 to 5 m/s) (30 to 985 fpm) Sensor

Air Velocity (.15 to 5 m/s) (30 to 985 fpm) Sensor

Sodium Sulfite Solution

Replacement DO Sensor Cap

Pendant Replacement Parts Kit

Replacement Coupler for HOBO Pro v2

Smart Sensor Extension Cable (5 meter)

MX2500 Replacement Electrode

Hi 70300L Storage solution for pH Electrodes (500mL)

MX2500 Anti-Biofouling Copper Guard

Smart Sensor Extension Cable – 25m length

HOBOware Pro USB Drive (USB Cable Included) Software

AA-100: Protective Carrying Case