The Elitech BT-3 Digital Thermometer & Hygrometer is a practical and reliable monitoring device designed to measure indoor and outdoor temperatures as well as indoor humidity levels with precision. Featuring a clear digital display, it helps you maintain a comfortable and healthy environment in homes, offices, greenhouses, warehouses, and HVAC applications.
The BT-3 includes a comfort indicator that quickly shows whether humidity levels are within the ideal comfort range. It also records and displays maximum and minimum temperature and humidity values, allowing you to track environmental changes over time. For added convenience, users can easily switch between °C and °F temperature units.
Designed for flexible installation, the device can be placed on a desk or shelf using its built-in stand or attached to metal surfaces with its integrated magnetic backing.
Specification:
| Internal sensor measuring range | 32-122℉(0-50℃); 20-99%RH |
| External sensor measuring range(temperature only) | -58 ~ +158°F (-50 ~ +70℃) |
| Resolution | 0.1 ℉/0.1 ℃ ;1%RH |
| Power supply | 1.5V DC AAA battery |
| External sensor wire length | 6.56ft(2m) |
| Service | 1-year warranty. 30 days free & easy return |









