Temperature Sensor: Range: -31 to 176°F (-35 to 80°C); Accuracy: ±2°F (±1°C); Resolution: ±1°F (±0.5°C).
Temperature/Humidity/Dew Point Sensor: Range: -31 to 176°F (-35 to 80°C), 0-100% RH; Accuracy: ±2°F (±1°C), 3.5% RH; Resolution: ±1°F (±0.5°C), 1% RH.
Voltage Sensor: Range: 0 to 30 V DC; Accuracy: ±1%; Resolution: 50 mA DC.
Current Sensor: Range: 4 to 20 mA; Accuracy: ±1%; Resolution: ±0.05 mV DC.
Memory Size: 16,382 temperature; 16,382 each temperature and RH; and 32,764 for voltage and current.
Sampling Mode: Stop on memory full.
Sampling Rate: Selectable from 10 sec. to 12 hrs. (DW-USB-1, DW-USB-2) and 1 sec. to 12 hrs. (DW-USB-3, DW-USB-4).
Computer Requirements: Windows® 98, Windows® 2000, Windows® XP, or Windows Vista™ 32-bit operating systems.
Power Requirements: 3.6 V lithium battery (life approx. 1 year).
Housing: ABS plastic blend.
Alarms: Programmable high/low.
Interface: USB Port.
Weight: 1.5 oz (43 g).
Agency Approvals: CE.