[. . . ] · Integrated GPS: Employ GPS Search on a conventional survey without an external GPS receiver. You can also navigate and find control points and other assets quickly. · Cables Eliminated: Bluetooth® wireless technology eliminates cables in surveying systems. [. . . ] ­30 °C to 60 °C (­22 °F to 140 °F) Storage Temperature . ­40 °C to 70 °C (­40 °F to 158 °F) Temperature shock . . ­35 °C/65 °C (­31 °F/149 °F) MIL-STD-810G, Method 503. 5, Procedure I Humidity . 90%RH temp cycle ­20 °C/60 °C (­4 °F/140 °F) MIL-STD-810G, Method 507. 5 Sand & dust . IP6x: 8 hours of operation with blowing talcum powder (IEC-529) Water . 26 drops at room temperature from 1. 22 m (4 ft) onto plywood over concrete MIL-STD-810G, Method 516. 6, Procedure IV Vibration. . General Minimum Integrity and Loose Cargo test MIL-STD 810G, Method 514. 6, Procedures I, II Altitude. 4, 572 m (15, 000 ft) at 23 °C (73 °F) and 12, 192m (40, 000 ft. ) at -30 °C (-22 °F) MIL-STD-810G, Method 500. 5, Procedures I, II, III ELECTRICAL SPECIFICATIONS Processor . . Texas Instrument SitaraTM 3715 series ARM® CortexTM­A8 Processor (800 MHz) Memory . SDHC memory slot, USB host internal embedded expansion slot (for future use) Batteries . 11. 1 V, 2600 mAh, 28. 9 Wh Li-Ion rechargeable pack Battery life of 34 hours under normal operating conditions1. 4. 2 in (107 mm) landscape VGA display, 640 x 480 pixels sunlight-readable color TFT with LED backlight, resistive touchscreen Keyboard . . Full QWERTY keypad with 10-key number pad, directional buttons, and 4 programmable buttons "ABCD" style keypad option with 10-key number pad, directional buttons, and 4 programmable buttons available Audio . Integrated speaker and microphone with 3. 5 mm stereo headset connection for audio system events, warnings, and notifications. USB Host (full speed), USB Client (high speed), DC power port, 9-pin serial RS-232 Wireless. integrated Bluetooth 2. 0+EDR, integrated Wi-Fi 802. 11 b/g integrated quad-band GSM/GPRS/EDGE: 850/900/1800/1900 MHz, 2/6 Mbit/s 3G HSDPA GSM WWAN integrated 2. 4 GHz frequency-hopping spread-spectrum radio modem (optional) Camera / GPS / Compass / Accelerometer . [. . . ] The Bluetooth word mark and logos are owned by the Bluetooth SIG, Inc. and any use of such marks by Trimble Navigation Limited is under license. Microsoft and Windows Mobile are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries. [. . . ]