GS026 WIRELESS WIND SPEED SENSOR Retrofits onto the mounting bracket of the previous model of Trimble Lifting Solutions wind speed sensor for an easy upgrade FCC and CE certified Communication range of 4,600 feet / 1,400 meters Compatible with The GS820, GS550 & GS320 Displays and with the Gateway Router Measurement range of 0 to 150 mph / 0 to 241.4 km/h Typical accuracy: +/- 3 mph (+/- 4.8 km/h) User-replaceable wind cup assembly Inexpensive replacement wind speed heads Simple and easy battery change: Turn the battery cap 90° and remove the cap Replace the battery with a new one Replace the battery cap Up to 3 years of battery life under normal operation Also includes a 1-year warranty