Celsius ( °C ) or Fahrenheit ( °F ) temperature display
Measurement Range: -50°C to +70°C or -58°F to +150°F, and 20% to 100% RH
Accuracy: +/- 1°C or +/- 1.8°F within -20°C to +70°C or -4°F to +150°F, otherwise more than +/- 1°C or +/- 1.8°F ; +/- 3% RH within 30-70% RH, otherwise +/- 5% RH