AMTAST Digital Indoor Outdoor Thermometer Hygrometer Gauge Humidity Test Meter Temperature Monitor with External Sensor

• The external sensor only for temperature, for humidity it only measures the room value.
• This meter displays temperature, humidity and time simultaneously, with external temperature sensor.
• °C/°F unit selectable. 12/24 hour displaying system selectable. Memory of MAX & MIN measuring value. Integral-hour alarm function; Clock, Week & Calendar function (month and date).
• Extra Large-character display 92 x 66mm. Desk-top placing or Wall Hanging.
• This meter measures for the indoor/ outdoor temperature and the indoor room humidity. The exteral sensor of this meter only for outdoor temperature, can't measure the outdoor humidity.

1. Temperature range: Indoor -10 ~ +50°C(+14 ~ +122°F), Outdoor: -50 ~ +70°C (-58 ~ +158°F) 2. External sensor cable length 2 Meters. 3. Humidity range: 20%~99%RH, when less20%, display 10% directly 4. Resolution: temperature: 0.1°C (0.1°F),humidity: 1% RH 5. Accuracy: temperature: +-1°C (1.8°F),humidity: +-5%RH 6. Power supply: 1.5V (AAA size) x 1 (Battery Not Included) 7. Product dimension: 5.9 in x3.5 inx1 in (15 cm x8.8 cm x2.5 cm) 8. Weight: 6.7oz (190g) 9. Please Note: Batteries are not included in the package due to Aviation Security Check. Sorry for any inconvenience caused.