The ThermaData Humidity Logger is a compact USB temperature and relative humidity data logger designed for reliable environmental monitoring. Suitable for ecological fieldwork, habitat assessment and long-term microclimate studies, it records accurate measurements that can be downloaded and analysed at a later date.
Accurate Temperature & Humidity Monitoring
The logger records both relative humidity and temperature, providing dependable data for professional use.
- Humidity accuracy: ±2% RH (20–80% RH), otherwise ±3% RH
- Temperature accuracy: ±0.5 °C
These accuracy levels make the logger suitable for monitoring roost conditions, nesting environments, woodland microclimates, storage areas or controlled research settings.
Multi-Logging Feature
The multi-logging function allows you to start and stop recording sessions without needing to download data each time. This enables you to track multiple processes or survey periods and retrieve all recorded data together when convenient.
Large Internal Memory
Built with substantial onboard storage, the ThermaData Humidity Logger can store up to 120,000 readings. This large memory capacity supports long-term deployment with minimal interruption, reducing the need for frequent site visits to download data.
Simple USB Download & Analysis
Data is transferred via USB connection and viewed using the free ThermaData software. Logged readings can be reviewed, graphed and exported for reporting or further analysis.
This instrument is fitted with 1 x 2/3 AA 3.6v Li-CoCl2 lithium battery.
Read the instructions here: Download PDF
| Range | -20 to 70 °C |
| Operating Range | -20 to 85 °C |
| Accuracy | Humidity: ±2% between 20–80% RH, otherwise ±3% RH Temperature: ±0.5°C |
| Battery | 1 x 2/3 AA Li-CoCl2 |
| Sensor Type | Humidity – Capacitive Polymer RH sensor Thermistor |
| Display | 45mm x 35mm |
| Weight | 175.1 g |
| Case Material | ABS plastic |
| Probe Length | 1000 mm |
| Instrument Thermal Stability (Temperature) | 50:1 |
Delivery & Returns
Shipping is calculated at checkout based on order weight, product type and delivery postcode. Prices exclude VAT.
Delivery times
| UK mainland | 1 to 3 working days for orders placed before 2pm |
| Scotland, Northern Ireland & UK offshore areas | 2 to 5 working days for orders placed before 2pm |
| Europe | 3 to 5 working days for orders placed before 2pm |
| Rest of world | 7 to 14 working days for orders placed before 2pm |
Delivery costs
UK mainland: delivery starts from £7.92.
Highlands and Islands: delivery starts from £25.
Northern Ireland: delivery starts from £20, rising to £90 for orders up to 60kg.
Larger orders, pallet deliveries and some offshore or international deliveries may require a quote.
For European orders, please visit wildcare.eu, call +33 (0)4 65 65 00 05 or email [email protected].
Need it by a certain date?
Please tell us when ordering. For urgent orders, call 01451 833181.
Returns
If your order arrives damaged or incorrect, please contact us within 5 working days.
A Returns Number may be required before sending goods back. Call 01451 833181 or email [email protected].
Please see our full returns policy for more information.




