Fieldpiece EH4W Wireless Electronic Handle with Wireless Transmitter<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Wireless range: Up to 75 feet (23m) line of sight</li><li>Wireless Frequency: 910MHz to 920MHz (US)， 8681MHz to 8685MHz (European)</li><li>Display: 5000 count FSTN LCD</li><li>Measurement Rate: 25 times per second， nominal</li><li>Battery life: 200 hrs typical with alkaline</li></ul></div><img src="http://ecx.images-amazon.com/images/I/318kk0LVYnL.jpg" noproxy>