The Calypso Instruments WeatherDot delivers temperature, pressure and humidity instantly. It can be mounted on a tripod, and can either be used by itself or paired with a Ultrasonic Portable Mini wind meter. Temperature, pressure and humidity sensor. Light and small. Portable weather station. Bluetooth connection. 24.000 data points storage. Battery powered (wireless charging QI) 400 hours of active use at 1/3 Hz. User Manual: CM1033 WeatherdotNote: The packaging on this product causes the top of the unit to rub against the inside box lid, resulting in minor cosmetic. This is normal as per the packaging. Calypso Instruments WeatherDot CMI1033