A weatherproof data logger with built-in temperature and relative humidity sensors. The user-replaceable relative humidity sensor provides fast response and superior recovery from condensing conditions.
A weatherproof data logger with built-in temperature and relative humidity sensors. The user-replaceable relative humidity sensor provides fast response and superior recovery from condensing conditions.
Discontinued!
This product has been discontinued and is no longer available. There is no direct replacement. Don't worry, we have some options to help you find what you need:
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HOBO data loggers requires HOBOware software (USB interface cable included w/CD purchase) and a communications device. HOBOware Pro is required when using the U-DTW-1 Waterproof shuttle.
Features
Supported Measurements
Optical Interface for data transfer
| Temperature Sensor | |
| Operation range | -40° to 158°F (-40° to 70°C) |
| Accuracy | ±0.38°F from 32° to 122°F (±0.21°C from 0° to 50°C); see Plot A |
| Resolution | 0.02°C at 25°C (0.04°F at 77°F); see Plot A |
| Response Time | 40 minutes in air moving 1 m/sec |
| Stability (drift) | 0.18°F (< 0.1°C) per year |
| Relative Humidity Sensor | |
| Operation rang | 0-100% RH, -40° to 158°F (-40° to 70°C) Exposure to conditions below -4°F (-20°C) or above 95%. RH may temporarily increase the maximum RH sensor error by an additional 1% |
| Accuracy | ±2.5% from 10% to 90% RH (typical), to a maximum of ±3.5% including hysteresis. See Plot B for full range. |
| Resolution | 0.03% |
| Response Time (typical to 90%) | 40 minute in air moving 1 m/sec with protective cap |
| Logger | |
| Operation range | -40° to 158°F (-40° to 70°C) |
| Memory (non-volatile) | 64K bytes memory (approx. 21,000 temperature and RH measurements) |
Click on a category to view a selection of compatible accessories with the Onset HOBO U23-001 Pro v2 Temperature/Humidity Data Logger, int. sensor.
| Temperature Sensor | |
| Operation range | -40° to 158°F (-40° to 70°C) |
| Accuracy | ±0.38°F from 32° to 122°F (±0.21°C from 0° to 50°C); see Plot A |
| Resolution | 0.02°C at 25°C (0.04°F at 77°F); see Plot A |
| Response Time | 40 minutes in air moving 1 m/sec |
| Stability (drift) | 0.18°F (< 0.1°C) per year |
| Relative Humidity Sensor | |
| Operation rang | 0-100% RH, -40° to 158°F (-40° to 70°C) Exposure to conditions below -4°F (-20°C) or above 95%. RH may temporarily increase the maximum RH sensor error by an additional 1% |
| Accuracy | ±2.5% from 10% to 90% RH (typical), to a maximum of ±3.5% including hysteresis. See Plot B for full range. |
| Resolution | 0.03% |
| Response Time (typical to 90%) | 40 minute in air moving 1 m/sec with protective cap |
| Logger | |
| Operation range | -40° to 158°F (-40° to 70°C) |
| Memory (non-volatile) | 64K bytes memory (approx. 21,000 temperature and RH measurements) |
Click on a category to view a selection of compatible accessories with the Onset HOBO U23-001 Pro v2 Temperature/Humidity Data Logger, int. sensor.