Part NumbersRX2101 • RX2102 • RX2103 • RX2104 • RX2105-900 • RX2105-868 • RX2105-922 • RX2105-921 • RX2106-900 • RX2106-868 • RX2106-922 • RX2106-921
External sensors must be purchased separately. Requires a HOBOlink data plan, which must be renewed annually. Learn more about HOBOlink.
A compact, rugged, easy-to-deploy, low-cost cellular solution for long-term, reliable field monitoring. With two power options available (a solar panel for extended deployments or user-replaceable batteries for flexible mounting in covered or protected locations), this monitoring station includes inputs for up to five of Onset's research-grade plug-and-play sensors. (Sensors must be purchased separately.)
Configurable station-side alarms trigger immediate notifications of critical conditions, and Onset's HOBOlink cloud platform makes it easy to view, access, and share data. This station can also be ordered with an additional water level sensor input with integrated flow conversion.
- Compact size for easy deployment
- Robust, weatherproof IP66/NEMA 4X enclosure
- Two power options:
- Integrated 1.7 W solar panel with rechargeable battery pack
- 5 W and 15 W external solar panels can be added to MicroRX Station (RX2102), MicroRX Water Level Station (RX2104) or MicroRX Station for HOBOnet (RX2106)
- User-replaceable AA lithium batteries
- Integrated 1.7 W solar panel with rechargeable battery pack
- Inputs for five plug-and-play sensors
- Option for wireless sensors using HOBOnet (RX2106 only)
- Optional water level sensor input included in MicroRX Water Level Station, battery-powered (RX2103) and MicroRX Water Level Station, solar-powered (RX2104)
- Built-in LCD confirms proper setup and operation
- Integrated mounting tabs for use with screws, zip ties, or U-bolts
- Station-side alarms, including water flow and accumulated rainfall
- Up to 10-minute connection rates via 4G cellular data plans
- Cloud-based monitoring and data access through HOBOlink
Build a system
MicroRX Station, battery-powered (RX2101 and RX2105) and Micro RX Water Level Station, battery-powered (RX2103): -40° to 60°C (-40° to 140°F)
Smart Sensor Connectors
Smart Sensor Network Cable Length
100 m (328 ft) maximum
Smart Sensor Data Channels
Maximum of 15 (some smart sensors use more than one data channel; see sensor manual for details)
1 minute to 18 hours
±8 seconds per month in 0° to 40°C (32°F to 104°F) range;
Battery Type/Power Source
RX2102, RX2104 and RX2106: Integrated 1.7 watt solar panel and NiMH rechargeable battery pack; optional AC power adapter (P-AC-1) or external solar panel (SOLAR-xW) can be used in place of integrated solar panel
RX2102, RX2104 and RX2106 Battery Life:
Typical 3–5 years when operated in the temperature range -20° to 40°C (-4° to 104°F); operation outside this range will reduce the battery service life.
Maximum connection rates with built-in solar panel, in full sun:
Maximum connection rates with external 5W or 15W solar panels:
Battery life without solar recharging, with hourly connections and
RX2101 and RX2103 Battery Life:
Battery life with daily connections:
Battery life with hourly connections and 1 minute logging:
Note: Deployments in areas with weak cellular strength could reduce battery life.
RX2105 Battery Life:
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.
16 MB, 1 million measurements, continuous logging
Alarm Notification Latency
Logging interval plus 2–4 minutes, typical
Hinged door secured by two latches with eyelets for use with user-supplied padlocks
LCD is visible from 0° to 50°C (32° to 122°F); 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 (7.85 x 5.39 x 2.95 in.)
678 g (23.9 oz)
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
Weatherproof enclosure, NEMA 4X and IP66 (requires proper installation of cable channel system)
GSM/GPRS/EDGE: Quad band 850/900/1800/1900 MHz
The CE Marking identifies this product as complying with all relevant directives in the European Union (EU)
|Taiwan Compliance - RX2105 and RX2106 Micro RX versions only|
FCC ID QIPPLS62-W, IC ID:7830A-PLS62W
Kilowatt Hours (kWh)
Cable Adapters - Splitter
Tripod Parts, Kits and Masts
What's in the box
- HOBO RX2100 MicroRX Station
- Grease packet
- Cable ties
- Screws and washers
- Six AA lithium batteries (RX2101 and RX2103 battery-powered stations)
- Battery pack (RX2102 and RX2104 solar-powered stations)
If you have a question that’s not listed below, contact our Sales Application Specialists, who will be happy to help you!
No, the battery-powered station is only wired for use with lithium batteries, not for use with the solar panel. If you want to use solar power, choose one of the solar-powered stations: the RX2102, RX2104 or the RX2106.
Yes. You can add the S-ADAPT-6 Consolidator Box to connect up to five additional smart sensors with your MicroRX Station.
You may want an additional solar panel to boost power to ensure connectivity at the maximum 10-minute rate. It may also be a good option if your system is not deployed in full sun.
Yes, the HOBO MicroRX Station (RX2106) works with HOBOnet wireless motes. If you need Ethernet or Wi-Fi connectivity, or a more flexible/scalable solution, another option is the RX3000 with the RXW Manager for HOBOnet sensors.
No. If you want to use these adapters to connect analog sensors, use the S-ADAPT-6 Consolidator Box and mount the adapters in this.
If you are mounting your station with cable ties, you will need diagonal cutting pliers for cutting off excess cable tie. If you are mounting with U-bolts, you will need a ½” box wrench. If using screws to mount your station, you will need a Phillips-head screwdriver.