Measurement specifications Temperature (internal sensor)
Range: -22°F to +122°F (-30°C to +50°C) Accuracy: ±0.33°F (±0.2°C) at +70°F in high resolution mode and ±0.7°F (±0.4°C) in standard resolution mode, see plot below Resolution: 0.04°F (0.02°C) at +70°F in high resolution mode and 0.68°F (0.38°C) in standard resolution mode, see plot below Response time in still air: 34 minutes typical Relative humidity
Range: 0% to 100% RH Accuracy: ±3% (up to ±4% in condensing environments) (requires BoxCar 3.7.3 or BoxCar Pro 4.3 or higher) Response time: 30 minutes typical in still air Sensor operating environment: +32°F to +122°F (0°C to +50°C) Drift: 1% per year (typical), reversible short term drift +1% after exposure to 95% RH, 50°C for 48 hours, factory tune-up available
