GPS moduleHOLUX M-87 adopts MTK chipset subjects to RoHSWEEE. M-87 is an easy used GPS engine board designed by low power consumption MTK GPS solution. It provides superior sensitivity up to -159dBm and fast Time-To-First-Fix in navigation application. The stable performance of M-87 is your best choice to be embedded in your portable device design, like PND for GPS service. • Statellite channels: up to 32 channels • reset fast • low power consumption • Support RTCM-in • Including Built-in WAAS/ EGNOS/ MSAS modem • Support NMEA0183 V 3.01 datum communication protocol • support real-time navigation • suit for auto navigation, vessles navigation, fleet management, AVL and positioning service and tracking set system and mapping set application • Operating: -20C to 85 C • size: 25.4mmx 25.4mm x 7 mm • weight : 3g