4G Smart GPS electronic lock JT701 is a new design seal tracker based on the market of container gps tracking, van type trucks tracking. It supported by dual SIM cards with GSM/3G/4G network, and work under 2 kinds of modes: tracking mode with continuous uploading GPS position; Standby mode with 4 time points GPS locating. It's waterproof IP67, anti water and dust, can used outdoor at different weather.