Overview
Ideal for energy audits, building commissioning studies, equipment scheduling, and more, this self-contained, Bluetooth-enabled, wireless data logger lets you use your mobile device or Windows computer and our free HOBOconnect app to access data, at any time, when within 100 feet of the logger. Configure the logger, read out data, view data in graphs, check the operational status of loggers, configure alarm notifications, and share data files – with no dedicated equipment beyond a mobile device or laptop.
Purchase an MX Data Plan to get more out of your data and access it from anywhere using the LI-COR Cloud software platform (formerly HOBOlink)! You can also purchase the MX Gateway station, which automatically offloads your logger’s data via Bluetooth and sends it to LI-COR Cloud.
Features
- Bluetooth communication for wireless data offload
- 16-bit resolution for highly-accurate measurements
- Stores 1.9 million measurements for longer deployments between offloads
- New Self-Describing sensors with intelligent configuration for fast deployment
- Compatible with existing sensors for a wide range of indoor monitoring
- Audible and visual LCD-screen alarms notify you if a sensor becomes unplugged or a reading exceeds set thresholds
Specifications
| Logger with Cable Type | SD-MA-420 or CABLE-4-20mA | SD-VOLT-2.5 or CABLE-2.5-STEREO | SD-VOLT-05 or CABLE- ADAP5 | SD-VOLT-10 or CABLE-ADAP10 | SD-VOLT-24 or CABLE-ADAP24 |
| Measurement Range | 0 to 20.1 mA | 0 to 2.5 V | 0 to 5.0 V | 0 to 10 V | 0 to 24 V |
| Accuracy | ±0.001 mA ±0.2% of reading | ±0.1 mV ±0.1% of reading | ±0.2 mV ±0.3% of reading | ±0.4 mV ±0.3% of reading | ±1.0 mV ±0.3% of reading |
| Resolution | 0.3 µA | 40 µV | 80 µV | 160 µV | 384 µV |
| Logger | |||||
| Operating Range | -20° to 70°C (-4° to 158°F) | ||||
| Radio Power | 1 mW (0 dBm) | ||||
| Transmission Range | Approximately 30.5 m (100 ft) line-of-sight | ||||
| Wireless Data Standard | Bluetooth Low Energy (Bluetooth Smart) | ||||
| Logging Rate | 1 second to 18 hours | ||||
| Logging Modes | Fixed interval (normal, statistics) or burst | ||||
| 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, date & time, or after a set logging period | ||||
| Restart Mode | Push button | ||||
| Time Accuracy | ±1 minute per month at 25°C (77°F) | ||||
| Battery Type | Two AAA 1.5 V alkaline batteries, user replaceable | ||||
| Battery Life | 1 year, typical with logging interval of 1 minute and Bluetooth Always On enabled; 2 years, typical with logging interval of 1 minute and Bluetooth Always On disabled; and temperatures between 0° and 50°C (32° and 122°F). Faster logging intervals and statistics sampling intervals, burst logging, remaining connected with the app, excessive downloads, and paging may impact battery life. | ||||
| Memory | 4 MB (1.9 million measurements, maximum) | ||||
| Full Memory Download Time | Approximately 4 to 15 minutes depending on the mobile device; may take longer the further the device is from the logger | ||||
| 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 | 11.28 x 5.41 x 2.92 cm (4.44 x 2.13 x 1.15 in.) | ||||
| Weight | 123 g (4.34 oz) | ||||
| Environmental Rating | IP54 | ||||
