> For the complete documentation index, see [llms.txt](https://docs.valetron.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.valetron.com/wiki/products/valtrack-v4-vts-esp32-c3/purchase-info.md). # Purchase info ### [Click on this link to visit our store for purchasing this board.](https://www.valetron.com/store/valtrack-v4-vts-esp-32-c3-4g-lte-gps-tracker.html) ### Product variants * Without Enclosure * With Enclosure ### GNSS Antenna Selection * Internal Patch antenna * External antenna We offer the device with above options, You can order the device only if you want to use it in some other instrument along with other hardware or you can order the device with a IP67 enclosure. We also offer the device with internal GNSS patch antenna or external antenna. If you choose external antenna, we provide a SMA connector on the enclosure(if ordered) and add a bias resistor to power the external active antenna. Then you can connect a external antenna to the board via the U.FL connector. External GNSS antenna option is helpful when you want to install devices in places where there is no direct satellite view. In such cases you can use the external GNSS active antenna shown in below image.

VALTRACK-V4-VTS-ESP32-C3 enclosures with and without external antenna option

From Left, (External GNSS antenna device, External GNSS antenna device, Internal GNSS Patch antenna device)

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