Pendant Event and Temperature Data Logger

Onset HOBO Data Logger Recording Events, Pulses and Temperature
SKU
UA-003-64
In Stock
$130.00
  • 2-Wire Interface Senor Suitable for Measuring Mechanical and Electrical Contact Closures
  • Up to 1HZ (1 pulse per Second) Measurement Rate for Events
  • -20°C to 70°C Temperature Measurement Range
  • 1 Year User-Replaceable Coin Cell Lithium Battery
  • Waterproof Housing for Use in Outdoor or Condensing Environments Up to 30 Meters (100 ft)

Requires Optic USB Base Station (BASE-U-4) and HOBOware (Free Download Version) or HOBOware Pro (Paid Download Version) Software.

Overview of the HOBO UA-003-64 Event Counter Data Logger

The Onset HOBO UA-003-64 Pendant is a data logger that records temperature and events using an external contact closure input. Combine this logger with a tipping rain bucket gauge to accurately measure rainfall rates, times, and duration. The UA-003-64 can be used with any sensor or gauge utilizing a scaled contact closure output. The logger will only store data in memory if there is an event which maximizes available memory. Downloading the logger can be done in less than 30 seconds using the required optical USB interface (BASE-U-4 or U-DTW-1). The logger is configured, and data is viewed using either free HOBOware or HOBOware Pro (paid) software.

Onset HOBO® UA-003-64 Pendant Event Data Logger Specifications

External Event Input
Event Sensor Two-wire interface suitable for measuring mechanical and electrical contact closures
Maximum Input Frequency 1 Hz (1 pulse per second)
Lockout Time 500 ms
Lockout eliminates false readings from tipping-bucket bounce
Minimum Pulse Width 1 ms (Hardware DeBounce)
Input/Output Impedance 100 kΩ
Edge Detection Falling edge, contact closure, or Schmitt-trigger Buffer
Preferred Switch Type Normally open. For maximum battery life, the event input should be used with its preferred switch type. The
logger will work with normally closed switches, but battery life will be compromised.
Open Circuit Input Voltage Battery Voltage; Nominally 3.0 Volts
Maximum Input Voltage Battery Voltage + 0.3 Volts
User Connection 24 AWG, 2 leads: White (+), Black (-)
Temperature Sensor
Measurement Range -20°C to 70°C (-4°F to 158°F)
Accuracy ±0.47°C at 25°C (±0.85°F at 77°F)
A solar radiation shield is required for accurate temperature measurements in sunlight
Resolution 0.10°C at 25°C (0.18°F at 77°F)
Drift Less than 0.1°C/year (0.2°F/year)
Response Time Airflow (2 m/s): 10 minutes, typical to 90%
Time Accuracy ± 1 minute per month at 25°C (77°F)
Operating Range -20°C to 70°C (-4°F to 158°F)
Drop Specification 1.5 m (5 ft) onto concrete
Battery User Replaceable CR-2032 3V Lithium Battery
Battery Life 1 Year with Typical Use
Data Storage Capacity Logger has 64,000 bytes of nonvolatile data storage. Data storage requirements per event are a function of enabled channels and logging interval. When events are three to 12 days apart, 32 bits are required to record a single event (16,000 events). When events are less than 16 seconds apart, only 22 bits are required to record a single event (23,000 events). In most cases, 25,000 to 30,000 data points (including events, temperature, and/or battery measurements) can be logged. For most rain bucket applications, battery life, not memory capacity, will be the factor that limits deployment duration.
Software Compatibility HOBOware and HOBOware PRO Version 3.5+
OS Compatibility Windows: Windows 11, 10 and 7 (32 and 64-Bit)
Mac: OS X 10.9.x, 10.10.x and 10.11.x
Standards Compliance CE, NEMA 6, IP67
Weight 50 g (1.7 oz.)
Dimensions 71mm x 33mm x 23mm (2.8" x 1.3" x 0.9"); 1.8 m (6 ft) cable
Customer Questions
Is the software compatible with Windows 10?
Yes, it will work with Windows10
Please, mind that only logged in users can submit questions
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