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Dataloggers, Sensors & Control Systems

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HOBO Weather Stations

Onset's weather stations save you time and money by offering plug-and-play convenience and research-grade performance. Learn more and compare all of our weather instruments.

  • Low Cost Systems (see brochure for options)
  • Rugged design for long-term use in harsh environmental conditions
  • Plug-and-play Smart Sensors eliminate complicated wiring and programming
  • Web-based and standalone systems to choose from
  • Ideal for agricultural research, crop management, ecology studies and more...

hobo weather U30The HOBO U30-NRC Weather Station is our most rugged data logging system that can be easily reconfigured and adapted to a wide variety of applications. Up to 15 channels of environmental data can be measured and recorded, and later analyzed with HOBOware® Pro software.

hobo weather brochure

Key Features:

  • All electronics are housed within a rugged double-weatherproof, tamper-proof enclosure
  • Set up is quick and easy with plug-and-play sensors
  • Fast data offload via USB
  • Optional analog inputs with sensor excitation
  • Includes relay that can be activated on user-defined alarm conditions

Specifications:

Normal operating range: -20°C to 40°C (-4°F to 104°F)

Extended operating range: -40 to 60°C (-40 to 140°F) - see "Rechargeable Battery service Life" for impact of operations in Extended Operating Range.

Sensor Inputs: 5 standard; option to expand to 10

Smart Sensor Compatibility: Compatible with most Onset smart sensors, except for the S-BPA, S-TMA and S-THA

Data Channels: Maximum of 15 (some sensors use more than one data channel)

Alarm Output Relay: Can be configured to be activated, deactivated or pulsed on user-defined sensor alarms. The relay can be configured as normally open or normally closed, and is rated for 30 V and 1 amp max.

Expansion Slot: One expansion slot is available for factory-installed expansion port.

Local Communication: Full Speed USB via USB mini-B connector

Size: 17.8 H x 11.7 D x 19.3 W cm (7.0 H x 4 .6 D x 7.6 W inches)

Weight: 2 kg (4 lbs 10 oz)

Materials: Outer Enclosure: ABS blend with stainless steel hinge pins and bronze inserts
Inner Enclosure: Polycarbonate with bronze inserts
U-Bolts: Steel with zinc dichromate finish
Gaskets: Silicone rubber
Cable entry channel: EPDM rubber
Cable entry bars: Aluminum with ABS plastic thumb screws

Data Storage Memory: Nonvolatile flash data storage, 512K bytes local storage

Memory Modes: Stop when full, wrap around when full

Operational Indicators: Up to six (depending upon options) status lights provide basic diagnostics

Logging Interval: 1 second to 18 hours, user-specified interval

Battery Type: 4 Volt, 4.5 AHr or 10 AHr, Rechargeable sealed lead-acid

Rechargeable Battery Service Life: Typical 3–5 years depending upon conditions of use. Operation within the extended operating range (but outside the normal range) will reduce battery service life.

Time Accuracy: 0 to 2 seconds for the first data point and ±5 seconds per week at 25°C (77°F)

Environmental Rating: Weatherproof enclosure, tested to NEMA 6. (Requires proper installation of cable channel system)

Mounting: 3.8 cm (1.5 inch) mast or wall mount

Enclosure Access: Hinged door secured by two latches with eyelets for securing with user-supplied padlocks

Sensor Network Cable Length: 100 m (328 ft) maximum

External Power: External power is required. The system optionally accepts the following Onset solar panels:

  • SOLAR-1.2W
  • SOLAR-3W
  • SOLAR-6W

Alternatively it accepts an AC power adapter:

  • AC-U30

Brochure