Description
SR304 Mini Protable GPS Receiver Navigation Handheld Location Finder USB Rechargeable with Compass for Outdoor Sport Men Watch
Features: Store and locate up to sixteen locations Utilizes the latest digital technology High sensitivity SiRF Star III GPS reciever Self calibrating digital compass Weather resistant Built-in rechargeable battery Compact size stores easily in your pocket or purse Receiver Type L1, C/A code 51-channel acquisition 14-channel tracking Maximum Update Rate 10Hz Display Pixel H*W 128 x 64 dot matrix Backlight Type Blue Appearance Dimensions 65 x 52 x 21mm Weight 39.6g w/ battery Memory 512KB Key 3 function keys: with 1 major button and 2 auxiliary ones Accuracy Position 10m (2m WAAS corrected) Velocity 0.1m/sec Time To First Fix Hot-Start 5 seconds average Warm-Start 40 seconds average Cold-Start 2 minutes average Sensitivity -161dBm tracking -157dBm re-acquisition -148dBm acquisition Protocol NMEA-0183 v3.01 Assistance Message-based via NMEA serial port Power USB DC5V and 3.7V 390MA lithium battery Operation Time around 10 hours Current Consumption Acquisition ~70mA Tracking ~30mA Temperature Operation -20°C ~ +75°C Storage -30°C ~ +85°C Humidity Range Up to 80% non-condensing 
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