... and circuit & waterproof 3.By GSM, GP New developed real-time mini gps chip tracker OEM/ODM 1.Tracking, locating & ... .Controlling oil and circuit & waterproof gps gsm tracker3.By GSM, GPRS and SMS gps gsm tracker Specification: GPS Module: SiRF III 32 CHANNELSensitivity ... < 3sWorking Temp: -40~+85Water proof: IP63Content per set: main device, antenna, oil-cut controller, monitor mic, gift box, manual, ...