HOBO MX1104 Temperature Humidity and Light Datalogger

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HOBO MX1104 Temperature Humidity and Light Datalogger is a multi-channel data logger that measures and transmits temperature, relative humidity, and light intensity data wirelessly. This HOBO MX1104 Datalogger also includes an external analog input to attach a variety of additional sensors.
Applications: Heat Treatment, Powder coating, SMT Reflow, Solar PV, Food Processing applications, etc.

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HOBO MX1104 Temperature Humidity and Light Datalogger is a device that measures Temp/RH/Light. This wireless data logger lets you use your mobile device with the HOBO app to access data, at any time, over a 100-foot range via Bluetooth Low Energy (BLE) technology. The user can configure the logger, read out data, view data in graphs, check the operational status of loggers, configure alarm notifications, and share data files – all with no dedicated equipment beyond a mobile device.

Features of HOBO MX1104 Temperature Humidity and Light Datalogger:

  • BLE communications 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 the user if the sensor becomes unplugged or a reading exceeds the set thresholds.

Additional information

Weight 1 kg




Temperature Sensor

20° to 70°C (-4° to 158°F)


±0.20°C from 0° to 50°C



RH sensor 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%

RH sensor 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

RH sensor Resolution


Response Time

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

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)

Operating Temperature

-20 to +70°C

Radio Power

1 mW (0 dBm)

Transmission Range

Approximately 30.5 m (100 ft) line-of-sight

Logging Rate

1 second to 18 hours

Time Accuracy

±1 minute per month at 25°C (77°F)


4 MB (1.9 million measurements, maximum)


Two AAA 1.5 V alkaline batteries

IP Rating

IP 54


112.8 X 54.1 X 29.2 mm


123 Grams

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Temperature Humidity and Light Datalogger

HOBO MX1104 Temperature Humidity and Light Datalogger