Dimensions: 2.4" x 1.8" x 0.9". Pack weight: 1.2oz. The easiest way to monitor and track a full suite of environmental conditions, including temperature, heat index, dew point temperature, station pressure, density altitude, and pressure trend. Store up to 6,000 data points. Wireless range up to 100ft/30m. Compatible with Kestrel LiNK app for IOS (model 4S and later) and Android (Android 4.3 and higher). See, save, and share data from mutiple DROP loggers with just one device. Waterproof and impact resistant. Floats. Color: tan. Boxed.