| The 42280 is an Extech Temperature and Humidity Data logger. |
| Data logs up to 16,000 readings. |
| Featuring a USB interface for downloading to a PC. |
| Triple LCD displays humidity, temperature and date (year, month and day). |
| Temperature range from -4 to 144°F (-20 to 70°C). |
| Complete with Windows compatible software, USB cable, Universal AC adaptor, and four AA batteries. |