• Reliably measures temperature and humidity
• Calculates wet bulb temperature
• Easy to read display shows parameters simultaneously
• Added Features of model 7425:
• Directly calculates dew point
• No psychometric chart needed
• Calculates % outside air
• Logs data with time and date stamp
• Stores 12,700+ samples and 100 test IDs
• LogDat2™ downloading software included

• Conducting thermal comfort studies
• Conducting IAQ evaluations
• Verify building HVAC system performance
• Troubleshooting heating and cooling systems
• Monitoring air conditions for manufacturing processes

• Range: 32 to 140°F (0 to 60°C)
• Accuracy: ±1.0°F (±0.6°C)
• Resolution: 0.1°F (0.1°C)

• Range: 5 to 95% RH
• Accuracy: ±3% RH
• Resolution: 0.1% RH

• Operating (Electronics):40 to 113°F (5 to 45°C)
• Operating (Probe): 14 to 140°F (-10 to 60°C)
• Storage: -4 to 140°F (-20 to 60°C)

• Range: 12,700+ samples and 100 test IDs

Logging Interval (7425 Only)

• 1 second to 1 hour

• User Selectable

• External Meter: 3.3 in. x 7.0 in. x 1.8 in. (8.4 cm x 17.8 cm x 4.4 cm)
• Probe dimensions: 7.0 in. (17.8 cm) (length), 0.75 in. (19.0 mm) (diameter of tip)
• Weight: 0.6 lbs. (0.27 Kg)
• Power Requirements: Model 7415 = Four AA Batteries
  Model 7425 = Batteries or optional AC adapter