High Accuracy Standard Temperature and Relative Humidity Probe with UKAS Calibration. Temperature Range: -50 to +100°C and Humidity 0-100%. Accuracy: ±0.1°C and ±0.5%RH, adjustments at 23 °C and 10, 20, 30, 40, 50, 60, 70, 80, 90 %RH. Outputs: 0-1V. Comes with a black Polycarbonate housing and a Polyethylene (40µm) filter. Sensor Element: Hygromer HT-1. Ideal for high accuracy portable measurements in open spaces, warehouses, museums or factory floors. Max wind speed 20m/s. Supplied with UKAS calibrated (UKAS-T1-H3) at: 20, 50, 80 %RH performed at 20°C.