Mitutoyo U-Wave Bluetooth Transmitter with Buzzer for Mitutoyo Calipers This new Mitutoyo U-Wave Bluetooth Transmitter fits to the back of Mitutoyo's 500-Series of Digital Calipers. This new design allows for a snug fit behind the display resulting in a more ergonomic feel. With the U-Wave Bluetooth Transmitter plugged into a Mitutoyo Digital Caliper with SPC Output, you can send measurement data wirelessly from your Caliper to a smartphone, tablet, or Bluetooth enabled laptops and PCs. This U-Wave Bluetooth Transmitter includes a Buzzer that confirms when a data transmission signal has been received. No U-Wave Receiver Required. Works with the following Mitutoyo Coolant Proof Calipers... 500-171-30 (0-6") 500-172-30 (0-8") 500-173-30 (0-12") Mitutoyo's new U-WavePak BLE is now available for Android, iOS and MS Windows at no cost. Specifications include... Wireless Communication Protocol Bluetooth 4.2 Low Energy Communication Distance Approximately 10 meter (visible range) Battery Life (CR2032) 200,000 Transmissions U-WavePak-BM 200,000 Transmissions U-WavePak-BW Receiver Required NONE Data Confirmation Led or Buzzer (optional) Communication Frequency 2.4 GHz OS Compatibility U-WavePak-BW supports Windows 10 (32bit, 64bit) U-WavePak-BW supports IOS and Android