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Crafted with all the functions of the HOBO MX2301, Onset’s HOBO MX2302 Temperature and RH Sensor Data Logger is designed with external temperature and relative humidity sensors.
View the rest of the Onset HOBO MX2300 series below.
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 (MX2301, MX2302 only) | |
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 | 0.05% |
Drift | <1% per year typical |
Response Time (typical, to 90% of change) | |
Temperature | MX2301 and MX2305 internal sensors: 17 minutes in air moving 1 m/sec |
RH | MX2301: 1 minute in air moving 1 m/sec |
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 (84,650 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.) |
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 |