Indoor Data Loggers

By October 29, 2021All Products, Onset, Products

As a trusted manufacturer of HOBO data loggers for 40 years, Onset provides the monitoring tools you need to maintain an energy-efficient, healthy indoor environment. HOBO data loggers span the full range of indoor energy and environmental measurements and install almost anywhere


Collect data to identify source issues and develop and prove solutions – with temperature, relative humidity, and carbon dioxide data loggers

Monitor indoor conditions to diagnose mechanical issues, locate sources that compromise comfort, and balance reliable interior environments with energy costs

Use temperature, CO2, and relative humidity data loggers to ensure the safe preservation of displayed and archived materials, and the comfort of visitors

Optimize operations, reduce costs, protect the product, and prove regulatory compliance – with localized or remote indoor monitoring solutions

Use temperature, RH, light on/off, and plug load data loggers to reduce energy consumption, optimize facility performance, and ensure occupant comfort

Utilize industry-leading data loggers, sensors, and software to collect and analyze data used in energy audits, and capture accurate energy and performance data

Save energy and ensure optimal building performance with indoor data loggers that provide actionable information for system optimization

Monitor indoor conditions with temp, RH, CO2, and energy data loggers to evaluate contractors’ performance and confirm their responsibilities are met


Whether you’re a property owner, warehouse manager, or facilities engineer, your building is important to you. Keep your costs under control and your facility’s occupants safe and comfortable with HOBO monitoring solutions that are:

  • Highly accurate
  • Easily deployed
  • Affordable

Because we offer such a broad range of loggers, sensors, and software, you have the flexibility to assemble a custom solution for your unique needs.

Measurement Comparison

USBBluetooth Low Energy (BLE) Remote Web Enabled via MX GatewayRemote Web EnabledRemote Web Server
Product Family
Environmental – Indoor Air Quality
Temperature (built-in)
Temperature (probe)
Thermocouple (probe)
Relative Humidity
Dew Point
Carbon Dioxide (CO2)
Light Intensity
AC Current (Amps)
AC Voltage (Volts)
AC Current (TRMS Amps)
AC Voltage (TRSM Volts)
DC Current (Amps)
DC Voltage (Volts)
Killowatt Hours (kWh)
Plug Load
Power Factor (PF)
Ah, A, kWh, kW, PF, VAR, VARh, VA, V, Wh, W
Light On/Off
Motor On/Off
State Changes
External Input
Air Velocity
Differential Pressure
Gauge Pressure
Compressed Air Flow
Water Flow
Input Adapter
4-20 mA
DC Voltage
HOBOnet Wireless Sensors – Larger Facilities / Indoor Grow Facilities
Relative Humidity
Dew Point
Pulse Input
Solar Radiation (Energy of Sun)
Photosynthetic Active Radiation – (PAR) Light for Plants
Wind Speed, Gust & Direction
Soil Moisture
Soil Electrical Conductivity (EC)
Leaf Wetness
Evapotranspiration (ET)

Shop for Onset Data Logger here or contact us for more! 

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