Humidity Pen Pen 0 to 100 Percent Relative Humidity Range +/-3 Percent Humidity Accuracy 0 to 100 Percent Absolute Humidity Range 0.1 Percent Humidity Resolution Sensor Type Precision Capacitance Sensor (Humidity) Thermistor (Temperature) Display LCD Bar Graph No Memory Min/Max Battery Type CR2032 Auto Power Off Yes Data Hold Yes Response Time 60 sec Humidity Probe Range (Deg. F) -4 to 140 Degrees F Data Logging No Interface No Calibration Certificate No