HOBO MX2301A Temperature/RH Data Logger

SKU: MX2301A

Overview

The HOBO MX2301 is a weatherproof data logger with built-in temperature and relative humidity sensors. Leveraging Bluetooth Low Energy, the logger enables easy, fast set up and data download directly from your mobile device, and provides high-accuracy measurements in harsh outdoor environments.

  

Highlighted Features

  • Convenient wireless setup and download via Bluetooth Low Energy (100-foot range)
  • Retrieve data in hard-to-reach locations
  • Visual alarms alert you to out-of-range conditions
  • Compact, weatherproof housing with built-in mounting
  • View current data in real time with Onset’s free HOBOmobile app
  • Share downloaded data easily from your mobile device
  • Accuracy: +/- 0.2C° and +/- 2.5% RH

In what environment does this data logger operate?

This data logger operates in an outdoor environment.

What measurements does this data logger support?

The MX2301A data logger supports the following measurements: Relative Humidity and Temperature

Temperature Sensor

Range :
MX2301 and MX2305 internal sensors: -40 to 70°C (-40 to 158°F)

Accuracy :
±0.25°C from -40 to 0°C (±0.45 from -40 to 32°F)

Resolution :
0.04°C (0.072°F)

Drift :
<0.01°C (0.018°F) per year

RH sensor

Range :
0 to 100% RH, -40° to 70°C (-40° to 158°F); exposure to conditions below -20°C (-4°F) or above 95% RH 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% RH and above 90% RH ±5% typical

Resolution :
0.01%

Drift :
<1% per year typical

Memory :
128 KB (63,488 measurements, maximum)

Response Time: Temperature (typical, to 90% of change)

MX2301A Internal Sensors

Without Solar Radiation Shield : 17 minutes in air moving 1 m/sec

With RS1/M-RSA Solar Radiation Shield : 24 minutes in air moving 1 m/sec

With RS3-B Solar Radiation Shield : N/A

Response Time: RH (typical, to 90% of change)

MX2301A Internal Sensors

Without Solar Radiation Shield : 30 second in air moving 1 m/sec

With RS1/M-RSA Solar Radiation Shield : 40 second in air moving 1 m/sec

With RS3-B Solar Radiation Shield : N/A

Logger

:-

Radio Power

1 mW (0 dBm)

Transmission Range

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

Wireless Data Standard

Bluetooth Smart (Bluetooth Low Energy, Bluetooth 4.0)

Logger Operating Range

-40° to 70°C (-40° to 158°F)

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

Time Accuracy

±1 minute per month 0° to 50°C (32° to 122°F)

Battery Type

2/3 AA 3.6 Volt lithium, user replaceable

Battery Life

2 years, typical with logging interval of 1 minute and Power Saving Mode disabled; 5 years, typical with logging interval of 1 minute and Power Saving Mode enabled. Faster logging intervals and statistics sampling intervals, burst logging, remaining connected with the app, excessive downloads, and paging may impact battery life

Memory

128 KB (63,488 measurements, maximum)

Full Memory Download Time

Approximately 60 seconds; may take longer the further the device is from the logger

Dimensions

Logger housing: 10.8 x 5.08 x 2.24 cm (4.25 x 2.0 x 0.88 in.)
External temperature sensor diameter: 0.53 cm (0.21 in.)
External temperature/RH sensor diameter: 1.17 cm (0.46 in.)
External sensor cable length: 2 m (6.56 ft)
Solar radiation shield bracket: 10.8 x 8.3 cm (4.25 X 3.25 in.)

Weight

Logger: 75.5 g (2.66 oz) Solar radiation shield bracket: 20.4 g (0.72 oz)

Materials

Acetal, silicone gasket, stainless steel screws

Environmental Rating

NEMA 6 and IP67

CE Compliance

The CE Marking identifies this product as complying with all relevant directives in the European Union (EU). This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.

MX2301A Data Sheet

Download

MX2300 series Data Sheet

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MX2300 series Quick Start Guide

Download

MX2300 series Manual

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