<p>1. Indoor and outdoor temperature and humidity measurement.</p> <p>2. Open\/close window reminder; 12\/24 hours time\/date\/alarm.</p> <p>3. Fahrenheit or Celsius convertible.</p> <p>4. Large colour screen display, comfort level display.</p> <p>5. Temperature trend display, maximum and minimum temperature and humidity records.</p> <p>1. Measuring range:</p> <p>Indoor temperature display range: -9.9\u2103-+50\u2103 \u0026 14\u2109-+122\u2109</p> <p>Indoor humidity display range: 20%RH-95%RH</p> <p>Outdoor temperature display range: -40\u2103-+60\u2103 \u0026 -40\u2109-+140\u2109</p> <p>Outdoor humidity display range: 20%RH-95%RH</p> <p>2. Resolution:</p> <p>Temperature display resolution: 0.1\u2103 \u0026 0.1\u2109.</p> <p>Humidity display resolution: 1%RH</p> <p>3. Error:</p> <p>0\u2103-40\u2103\/32\u2109-104\u2109: \u00B11\u2103\/1.8\u2109</p> <p>-20-0\u2103\/40\u2103-65\u2103\/-4\u2109-32\u2109\/104\u2109-149\u2109: \u00B12\u2103\/3.6\u2109</p> <p>40%RH to 80%RH: \u00B15%RH</p> <p>4. Main unit size: 150x95x22.5MM, Transmitter size: 50x105x26MM.</p> <p>5. Power supply: main unit 3xAAA battery; transmitter 2xAAA battery(Battery not included)</p> <p>Due to different batches, there may be differences in product appearance and printed text, which will not affect use.</p> <p>Colour:Black</p> <p>Material:Plastic</p> <p>Package Contents:</p> <p>1 * Weather Station Mainframe</p> <p>1 * Transmitter</p> <p>Only the above package content, other products are not included.</p> <p>Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.</p>