This GPS for Nikon N3 D90 D5000 is new and never used. It has high quality and safety， reliability and durable to use. Good choice for you!                                    Features            Adopting highquality USA chipset (SiRF Star III)， has low power function with GPS mode<br>High performance lithium polymer battery allows quick start of the chipset<br>It can tracks many satellite position accurately， up to 1 - 5 meters<br>2.5mm shutter release jack for connecting to DSLR<br>Small size， light weight and easy-carry， it can connect to the camera directly<br>                                                            Specifications                        Acquired Data          Latitude， longitude， altitude， UTC time        <br>          Positioning Capability          Approx 2 seconds (hot start)， approx 35 seconds (cold start)        <br>          Data Standard          NMEA-0138 ASCLL， WGS-84        <br>          Data Updated          2 seconds / time        <br>          Antennas Type          Built in high-gain active antenna        <br>          Working Temperature          -20 芒鈥炂?- 50 芒鈥炂?/td>    <br>          Compatible Shutter Release          SR-C1 shutter release        <br>                                                              Package Includes            1 x GPS for Nikon N3 D90 D5000<br>1 x Shutter Release<br>1 x Manual<br>                                                            Extra Info            Compatibility:<br>N-769/N3: Nikon D90 / D5000<br>GPS state indicator:<br>Off: GPS shut off or in standby condition<br>Green light quick flash: GPS signal no receive or in weak situation， positioning fail<br>Green light slow flash: GPS signal received， positioning successfully<br>