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USB Communications Data Logger

>> Rugged Double-Weatherproof, Tamper-Proof Enclosure
>> Attach up to 15 Smart Sensors
>> Easy Set-up with Plug-and-Play Sensors
>> Fast Data Offload with USB Cable
>> Optional Analog Inputs with Sensor Excitation
>> Includes Relay for User-Defined Alarm Conditions
>> Mounting Kit, Grounding Wire Cable Entry and Sealing Kit
>> Compatible with Most Onset Smart Sensors
>> Optional Data Shuttle Available for Collecting Measured Readings in Remote AreaThe U30 USB System Requires:
>> U30 Base Unit
>> Power Adapter or Solar Panels
>> Compatible Smart Sensors (Minimum 1)
>> HOBOWare Pro Software

All U30s are Built to Order - 7 Day Lead Time is Required.


Data Channels Max. 15 Channels
(Some Smart Sensors use more than 1 Channel)
Data Storage Capacity 512K Maximum Storage
(Number of Samples Dependant on External Sensors)
Sampling Rate 1 Second to 18 Hours
Smart Sensor Compatiblility Compatible with Onset Smart Sensors, Except S-BPA, S-TMA and S-THA
Logging Modes Immediate, Timed Delay, or Push-Button Start Options
Memory Modes Stop When Full; Wrap When Full
Sensor Inputs 5 Standard - Option to Expand to 10
Alarm Output Relay Activated, Deactivated or Pulsed on User-Defined Sensor Alarms
(Relay Configured as Normally Open or Normally Closed - Rated for 30 Volts and 1 Amp Max.)
Time Accuracy 0 to 2 Seconds for first data point and ±5 Seconds per Week at 25°C (77°F)
Communications Full Speed USB via USB mini-B Connector
Expansion Slot One Expansion Slot (Factory-Installed)
Enclosure / Materials Outer Enclosure: ABS Blend with SS Hinge Pins, Bronze Inserts
Inner Enclosure: Polycarbonate with Bronze Inserts
U-Bolts: Steel with Zinc Dichtomate Finish
Gaskets: Silicone Rubber
Cable Entry Channel: EPDM Rubber
Cable Entry Bars: Alum. w/ ABS Plastic Thumb Screws
Enclosure Access Hinged Door Secured by 2 Latches witEyelets for Securing with User-Supplied Padlocks
Mounting 3.8 cm (1.5") Mast or Wall Mount
Sensor Network Cable Length 100 Meters (328 ft) Maximum
Operating Range Temperature: -20°C to 40°C (-4°F to 104°F)
Battery Life Rechargeable Service Life: 3 - 5 Years Typical Use
(Dependant Upon Environment and Operating Range)
Battery 4 Volt, 4.5AHr or 10AHr, Rechargeable Sealed Lead-Acid
External Power Required with 4 Options to Choose from:
AC-U30 Power Adapter
Standards Compliance Weatherproof Enclosure. Tested to NEMA 6
Weight 2 kg (4 lbs 10 oz)
Dimensions 17.8cm x 11.7cm x 19.3cm (7.0" x 4.6" x 7.60")
Optional Analog Sensor Port Specifications
Input Channels (2) Single-Ended
Field Wiring 2- or 3-wire via Screw Terminals on Detachable Connector
Input Range User-Configurable: 0 to 20 mA DC, 0 to 20 VDC (Suitable for 2.5, 5, and 10 V Sensors)
Input Voltage 0 to 24 VDC
Input Current 0 to 24 mA DC
Current Source Impedance Minimum: > 20 KΩ
Accuracy ±0.25% of FSR from 50mV to FSV
Excitation Power Switched 12 VDC, up to 50 mA; User-Selectable Warm-up from 5 msec to 2 Minutes


Part # U30-NRC-000-05-S100-000
Base Price  
Analog Sensor Port Options  
Note: Choosing 2 analog inputs provides 2 analog inputs and sensor power;
and is user-configured for either 0-20 mA or 0-20V.
Smart Sensor Input Options  
Note: 5 smart sensor inputs includes weatherproof inlets for up to 5 sensor cables.
10 smart sensors inputs includes weatherproof inlets for up to 11 sensor cables, and 1 oversized cable (0.25")
Note: A 10 AHr Rechargeable Battery is Included.
Standard NIST 4-20mA Calibration Service Standard NIST DC Voltage Calibration Service
>> 1 Point (per Channel) Offset Calibration
>> Traceable to NIST
>> Certificate Supplied
>> Note: 3 to 5 Day Lead Time for All Calibration Order


Standard NIST 4-20mA Calibration Service Standard NIST 4-20mA Calibration Service
>> 1 Point Offset Calibration
>> Traceable to NIST
>> Certificate Supplied
>> Note: 3 to 5 Day Lead Time for All Calibration Orders
Part #: CAL-NIST-420MA

Documentation (pdf)

U30 Remote Communications Quick Start Guide
U30 Remote Communications User Manual
U30 Battery Replacement Guide