Does the 4g surveillance camera have a built-in flow card?

Built-in. The 4G surveillance camera supports the traffic cards of major operators, and it has a built-in 4G traffic card, so you don't need to bother to build a network, and you can still realize remote monitoring without broadband. Monitoring camera is a semiconductor imaging device, which has the advantages of high sensitivity, strong light resistance, small distortion, small volume, long life and vibration resistance.