HOBO Temperature/RH/Light/External Data Logger

HOBO Analog/Temp/RH/Light Data Logger

The MX1104 measures and transmits temperature, relative humidity, and light intensity data wirelessly. Includes an external analog input to attach a variety of additional sensors.

This self-contained, Bluetooth-enabled, wireless data logger lets you use your mobile device or Windows computer and Onset's 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.

Important Info

Requires HOBOconnect app and compatible mobile device or Windows computer. System requirements can be found at the bottom of the HOBOconnect software page.

Features & Benefits

• 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 automatic configuration for fast deployment
• Compatible with existing sensors for a wide range of indoor monitoring
• Audible and visual LCD-screen alarms notify you if the sensor becomes unplugged or a reading exceeds set thresholds

In what environment does this data logger operate?

This data logger operates in an indoor environment.

Compatible Items: External Self-Describing Temperature Sensors

Self-Describing (SD) sensors automatically communicate configuration information to HOBO MX Multi-Channel data loggers. Sensor parameters stored inside the SD sensor eliminate the need for programming or extensive setup, supporting fast deployment. Integrated strain relief and a locking jack ensure that the sensor is secured to your data logger, for convenient plug-and-play operation.

• Self-Describing technology for quick, easy setup
• Locking jack to ensure the sensor is connected and stays connected
• Measurement range of -40° and 100°C (-40° to 212°F)
• Accuracy of ±0.15°C from 0° to 70°C (±0.27°F from 32° to 158°F)
• Available in lengths of 1.8 m (6 ft) & 6.1 m (20 ft)

Specifications for the MX1104

Temperature Sensor (MX1104)

• Range: -20° to 70°C (-4° to 158°F)
• Accuracy: ±0.20°C from 0° to 50°C (±0.36°F from 32° to 122°F)
• Resolution: 0.002°C at 25°C (0.004°F at 77°F)
• Drift: <0.1°C (0.18°F) per year

RH Sensor (MX1104)

• Range: 0% to 100% at -20° to 70°C (-4° to 158°F); exposure to conditions above 95% may temporarily increase the maximum RH sensor error by an additional 1%
• Accuracy: ±2.5% from 10% to 90% (typical) to a maximum of ±3.5% including hysteresis at 25°C (77°F); below 10% and above 90% ±5% typical
• Resolution: 0.01%
• Drift: <1% per year typical

Response Time (MX1104)

• Temperature: 11 minutes in air moving 1 m/s (2.2 mph)
• RH: 30 seconds to 90% in airflow of 1 m/s (2.2 mph)

Light Sensor (MX1104)

• Range: 0 to 167,731 lux (15,582 lum/ft2)
• Accuracy: ±10% typical for direct sunlight (see Light Measurement on page 4 for more details)

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
• 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