HOBOnet MicroRX Station – RX2105

SKU: RX2105

The compact HOBO MicroRX Station (RX2105) is an easy-to-deploy, low-cost cellular solution for long-term, reliable monitoring of indoor and outdoor conditions in warehouses, cold storage facilities, data centers, museums, commercial and residential buildings, fields, crops and more. The station includes an integrated HOBOnet Manager, for easy deployment with wireless HOBOnet sensors. The station also features inputs for up to five of Onset’s research-grade plug-and-play sensors. Configurable station-side alarms trigger immediate notifications of critical conditions, and Onset’s cloud-based HOBOlink platform makes it easy to view, access, and share data.

Highlighted Features

  • Compact size and integrated HOBOnet Manager for easy deployment
  • Scalable, with option to connect up to 50 wireless sensors; 600 m line-of-sight range
  • Inputs for five plug-and-play sensors
  • Includes AC power adapter and user-replaceable AA lithium batteries for battery back-up
  • Built-in LCD confirms proper setup and operation
  • Up to 10-minute connection rates via 4G cellular data plans
  • Cloud-based monitoring and data access through HOBOlink
  • Integrated mounting tabs for use with screws, zip ties, or U-bolts
  • Battery powered

What measurements does this data logger support?

The RX2100 supports the following measurements: Absolute Pressure, 4-20mA, AC Current, AC Voltage, Amp Hour (Ah), Barometric Pressure, DC Voltage, Dew Point, Evapotranspiration, Kilowatt Hours (kWh), Leaf Wetness, Light Intensity, PAR, Power Factor (PF), Pulse Input, Rainfall, Relative Humidity, Soil Moisture, Solar Radiation, Temperature, Volt-Amp Reactive hour, Water Flow, Water Level, Watt Hours (Wh), Watts (W) and Wind


Indoor Monitoring

Operating Range

-40° to 60°C

Logging Rate

1 minute to 18 hours

Time Accuracy

±8 seconds per month in 0° to 40°C range;
±30 seconds per month in -40° to 60°C range

Battery Type/Power Source

6 AA 1.5 V lithium batteries or AC power adapter

Battery Life/Power Source

Runs continuously with the included AC adapter.

Batteries can be used as a backup to AC power; battery life of 3 months with 1 minute logging and daily connections or 2 months with 1 minute logging and hourly connections, and with approximately 10 motes.

Note: Deployments in areas with weak cellular strength could reduce battery life.

Maximum connection rates with built-in solar panel, in full sun:

10 minute connections year round for latitudes less than ±40°
10 minute connections through three seasons in other regions, reduced to 30 minute connections in winter
Maximum connection rates with external 5W or 15W solar panels:

10 minute connections year round, in full sun
Connection rate with external solar panels may be less if deployed in partial sun
Battery life without solar recharging, with hourly connections and
1 minute logging:


16 MB, 1 million measurements, continuous logging

Alarm Notification Latency

Logging interval plus 2–4 minutes, typical

Enclosure Access

Hinged door secured by two latches with eyelets for use with user-supplied padlocks


LCD is visible from 0° to 50°C; the LCD may react slowly or go blank in temperatures outside this range


Outer enclosure: Polycarbonate/PBT blend with brass inserts; Interior: Polycarbonate/PBT; Gasket: Silicone foam; Cable channel: Santoprene™ TPE; U-Bolts (not included): Steel with zinc dichromate finish


19.95 x 13.68 x 7.49 cm


678 g


Optional U-bolts are compatible with masts up to 4.14 cm (1.63 in.) mast diameter; can also be mounted with zip ties or mounted to a flat surface with screws

Environmental Rating

Weatherproof enclosure, NEMA 4X and IP66

Wireless Radio

GSM/GPRS/EDGE: Quad band 850/900/1800/1900 MHz
UMTS/HSPA+: Seven band 800/850/900/1800/1900/2100 MHz
LTE: Twelve Band 700/800/850/900/1800/1900/2100/2600 MHz




The CE Marking identifies this product as complying with all relevant directives in the European Union (EU)

RX2105 Data Sheet


Quick Start Guide