Specifications

    * display: LCD with backlight
    * sensor type:
          o humidity: precision capacitance sensor
          o temperature: thermistor (head) and type K thermocouple
    * measurement range:
          o humidity: 0%RH - 100%RH
          o temperature: -20°C to 60°C (-4°F to 140°F)
    * accuracy:
          o range 5% to 95% RH: +/- 3.5%RH (at 23°C +/- 5°C)
          o range -20°C to 60°C: +/- 2.5°C
          o range -4°F to 140°F: +/- 3.5°F
    * response time: 180ms
    * sample rate: 2.5 times per second
    * polarity: automatic, with negative polarity indication
    * overload indication: "OL"
    * resolution: 0.1%RH, 0.1°C, 0.1°F
    * operating conditions: 0-50°C (32-122°F); <80%RH non-condensing
    * storage conditions: -10°C to 60°C (14-140°F); <80%RH non-condensing
    * auto power off: device shuts down automatically if no key is pressed for ± 15 min.
    * battery: 9V (6LR61) battery (incl.)
    * dimensions: 8.86 x 1.77 x 1.34"
    * weight: 7oz