The Pendant Event/Temp Data Logger is a rugged, weatherproof event logger with a 10-bit temperature sensor. It is ideal for use with tipping-bucket rain gauges, and can record tens of thousands of measurements and events. The logger features a 2-wire 
interface cable for measuring mechanical and electrical contact closures, user-replaceable battery and a 1.5 meter drop specification.
Required Software and Components
>> HOBOWare Software Kit
>> Optic Base Station or Waterproof Data Shuttle
NOTE: NIST Calibration is available.
Large Quantity Discounts Are Available!
Pendant Event Logger Features
- Measure and Log Temperature and Events Like a Tipping Bucket
- Measurement Rate up to 1 Hz (1 pulse per second)
- Mechanical and Electrical Contact Closures
- Requires HOBOware Software and Optic Base Stations or Waterproof Shuttle
Pendant Event 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. |
| 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 |
Optic USB Base Station
- Offload and Relaunch Loggers in the Field
- Optical Infrared Interface
- Easy USB connection to PC
- Includes All Couplers and USB Cable
Optic USB Base Station
- Offload and Relaunch Loggers in the Field
- Optical Infrared Interface
- Easy USB connection to PC
- Includes All Couplers and USB Cable
Waterproof Shuttle Data Transporter
- Waterproof to 20 meters (66ft)
Can be used as an Optic USB based station for HOBO Pendant loggers, HOBO Water Level Loggers, and HOBO Water Temp Pro V2 Loggers- Allows for data readout under water while diving or snorkeling
- Rugged waterproof construction
- LEDs show offload and relaunch status