Onset HOBO UX90 State Data Logger
Features
- One logger with four recording modes
- Internal reed switch can be used to determine when a door or window is open or closed
- Compatible with a wide range of external sensors
- Expedited repair and warranty service
- Lifetime technical support
- More
Overview
Records state changes, electronic pulses, and mechanical or electrical contact closures from external sensing devices. Ideal for monitoring energy consumption, mechanical equipment operation, and water and gas flow. The Onset HOBO UX90 state logger is compatible with a wide range of external sensors, and operates in an indoor environment.
Memory
The HOBO UX90-001 State Data Logger is available in a standard 128 KB memory model (UX90-001) capable of 84,650 measurements and an expanded 512KB memory model (UX90-001M) capable of over 346,795 measurements.
Measurements Supported
- Event
- Kilowatt Hours (kWh)
- Motor On/Off
- Pulse Input
- Runtime
- State Open/Closed
- Water Flow
| Internal Sensor | |
| Maximum State, Event, Runtime Frequency |
1 Hz |
| Preferred Switch State |
No magnet present (normally open) |
| External Input | |
| External Contact Input |
Electronic solid state switch closure or logic driven voltage output |
| Range |
0 to 3 V DC (USB powered), 0 to 2.5 V DC (battery powered) |
| Maximum Pulse Frequency |
50 Hz |
| Maximum State, Event, Runtime Frequency |
1 Hz |
| Pulse, Event Lockout Time |
0 to 1 second in 100 ms steps |
| Solid State Switch Closure |
Input Low: < 10 KΩ; Input High: > 500 KΩ |
| Internal Weak Pull-Up |
100 KΩ |
| Input Impedance |
Solid state switch closure: 100 KΩ pull up |
| Logger | |
| Resolution |
Pulse: 1 pulse, Runtime: 1 second, State and Event: 1 State or Event |
| Logging Rate |
1 second to 18 hours, 12 minutes, 15 seconds |
| Memory Modes |
Wrap when full or stop when full |
| Start Modes |
Immediate, push button, date & time, or next interval |
| Stop Modes |
When memory full, push button, or date & time |
| Power Source |
One 3V CR2032 lithium battery and USB cable |
| Battery Life |
1 year, typical with logging intervals greater than 1 minute and normally open contacts |
| Memory |
UX90-001: 128 KB (84,650 measurements, maximum) UX90-001M: 512 KB (346,795 measurements, maximum) |
| Download Type |
USB 2.0 interface |
| Full Memory Download Time |
10 seconds for 128 KB; 30 seconds for 512 KB |
| Logger Operating Range |
Logging: -20° to 70°C (-4° to 158°F); 0 to 95% RH (non-condensing) Launch/Readout: 0° to 50°C (32° to 122°F) per USB specification |
| LCD |
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 |
| Size |
3.66 x 5.94 x 1.52 cm (1.44 x 2.34 x 0.6 in.)
|
| Weight |
23 g (0.81 oz)
|
| Environmental Rating |
IP50 |
- HOBO UX90-001x State Data Logger
- 2.5 mm input cable
- Command strip
- Double-sided tape
- Hook & loop strap
- Magnet with 2 screws
Select Options
In The News
Cal Poly, San Luis Obispo Manages Monitoring Efforts in Morro Bay
California Polytechnic State University, San Luis Obispo (Cal Poly, SLO), has been monitoring Morro Bay for decades, and while the monitoring program has changed over the years, the dedication to monitoring the bay has remained the same. The project started in 2006 as a Packard Foundation-funded initiative to monitor water quality flowing in and out of Morro Bay. The goal at the time was to use the data collected to develop and inform an ecosystem-based management plan in collaboration with the Morro Bay National Estuary Program (MBNEP). Since the estuary was the focus at the time, researchers were monitoring water flowing into the estuary from Chorro Creek and Los Osos Creek.
Read More
Green Water in Green Bay: Using Data Buoys to Monitor the Southern Bay
While the bay of Green Bay has been referred to as the largest freshwater “estuary” in the world, the watershed hosts intensive agriculture and contributes one-third of Lake Michigan’s total phosphorus load. The Fox River flows into the bay, carrying excess nutrients largely the result of non-point source runoff from the watershed. With a history of deterioration extending well into the last century, the bay ecosystem suffered significant declines in water quality. This, in turn, stimulated major clean-up and ongoing restoration efforts to improve water quality. Tracking these changes is an important aspect of ecosystem management.
Read More
Cross-Border Sewage Contaminated Flows: Monitoring the Tijuana River
The Tijuana River runs across the US-Mexico boundary, flowing into and throughout southern California, carrying with it nutrients and contaminants throughout the estuary. In recent decades, the flows have been heavily polluted with untreated sewage from the City of Tijuana. The wastewater enters the greater Tijuana River estuary, impacting coastal communities and disrupting the natural environment. In order to better understand these cross-border flows, researchers out of San Diego University sought to monitor the waterway test the capabilities of in-situ sensors to measure the contaminated water. Natalie Mladenov and Trent Biggs were two of the researchers involved in the project, deploying a real-time monitoring system in May of 2021.
Read More
