This state-of-the art measurement instrument is engineered and designed to the highest quality standards to assure you uncompromising<br> This instrument will measurements of wind speed & direction, wind , temperature&humidity.<br> All maximum/minimum data can be recorded and displayed. In addition, the time of recorded data can be displayed as .<br> The weather alarm can be set separately, any value can be set. The alarm signal lasts 2 minutes.<br> Wind speed and wind direction display. Average wind speed and gusts display. The units can be set as m/s,km/h,mph,knots or ( setting). Wind speed range: 0 to 50 m/s; Wind direction range:E,S,W,N,SE,NE,SW,NW.<br> Specification:<br> Outdoor Temperature range:<br> Alkaline batteries: -4F to 140F (-20C to 60C)<br> Lithium batteries: -40F to 140F (-40C to 60C);<br> Resolution (for both indoor/outdoor temperature): 2F/1C<br> Temperature accuracy: 2F/1C<br> Humidity range: 20% to 90%<br> Humidity accuracy:5%<br> Receiver: Alkaline battery: 2 AAA 1.5V<br> Wind Gauge Remote Sensor: Alkaline battery: 2 AA 1.5V or AA lithium battery(Not Included)<br> Battery life: 12 months (.)<br> Calendar:<br> The hour display can be set between 12 hour or 24 hour .<br> The time zone can be set from-12 to +12( setting).<br> Daylight saving time is adjusted automatically (The daylight saving time is adjusted on the basis of different time zone).<br> The date display can be set as: YYYY-MM-DD, MM-DD- YYYY,DD-MM-YYYY ( setting).<br> Wireless 433 MHZ receiving. Available distance: 328 ft in open field.<br> While receiving RF, press any key to quit.<br> Indoor/outdoor relative humidity (RH %) display. Display range: 20% to 99%. Resolution: 5%.<br> Wind- temperature display. Display units : F / C ( setting).<br> Dew- temperature display. Display units : F / C ( setting).<br> Material: Plastic<br> colour: White<br> Package Contents:<br> 1 x Professional Wireless<br> 1 x Receiver<br> Only the above package content, other are not included.<br> Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.