The cost-effective choice for recording multiple environmental conditions Internal sensors can include temperature and humidity With up to 4 external sensor ports, you choose the sensors you need LCD displays current sensor readings and battery level Select measurement intervals from 1 to 60 minutes Log 10,584 intervals (220 days at 30 minute intervals) Data is stored in fail-safe non-volatile memory Water-resistant case 12-month battery life (CR2450, included) Transfer data with a direct-connect cable or Data Shuttle Requires SpecWare 9 Basic or Pro (v9.2 or later) software (see Software page)