Onset
External Temperature Sensor Data Logger
A weatherproof data logger with one external temperature sensor. Leveraging Bluetooth technology for easy setup and data download directly to your mobile device or Windows computer running Onset's free HOBOconnect app, this logger delivers high-accuracy measurements in harsh outdoor environments.
Documentation
MX2300 Series Data Logger Manual
Highlighted Features
- Convenient wireless setup and download via Bluetooth (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 HOBOconnect app
- Share downloaded data easily from your mobile device
- Accuracy: +/- 0.2C°
Specifications
| Feature/Specification | MX2304 Details |
|---|---|
| Temperature Sensor | |
| Range | -40 to 100°C (-40 to 212°F), with tip and cable immersion in fresh water up to 50°C (122°F) for one year |
| Accuracy | ±0.25°C from -40 to 0°C (±0.45 from -40 to 32°F)<br>±0.2°C from 0 to 70°C (±0.36 from 32 to 158°F)<br>±0.25°C from 70 to 100°C (±0.45 from 158 to 212°F) |
| Resolution | 0.04°C (0.072°F) |
| Drift | <0.01°C (0.018°F) per year |
| Response Time (typical, to 90% of change) | |
| Without Solar Radiation Shield | 3 minutes in air moving 1 m/sec; 20 seconds in stirred water |
| With RS1/M-RSA Solar Radiation Shield | 7 minutes in air moving 1 m/sec |
| With RS3-B Solar Radiation Shield | 4 minutes in air moving 1 m/sec |
| Logger | |
| Operating Range | -40° to 70°C (-40° to 158°F) |
| Memory | 128 KB (84,650 measurements, maximum) |
| 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 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 |
Applications
In what environment does this data logger operate?
This data logger operates in an outdoor environment.
What measurements does this data logger support?
The MX2304 data logger supports the following measurement: Temperature