The RUT955 and RUTX11 are Teltonika's do-everything routers - cellular WAN, GNSS tracking, and dual-purpose Wi-Fi - and the PR1KCO28 is the roof antenna that serves all of it. The housing carries two LTE elements arranged for 2x2 MIMO, a GNSS element for the tracking feed, and a Wi-Fi element for cabin or yard WLAN, each lead terminated SMA for direct connection. One bolt-through install replaces four separate antennas, and because Teltonika specifies the part for these models, the RF configuration stays inside what the router was certified with. The combination antenna is tuned for 4G LTE cellular, GNSS, and Wi-Fi service and terminates in a SMA connector. Getting the Wi-Fi element out of the cabin extends coverage to yards and job sites the in-cab whip never reached. Bolt through the roof, seal, and connect: two leads to mobile, one to GNSS, one to Wi-Fi. The router's signal pages confirm all four paths in minutes, and the install repeats cleanly across a fleet. Cloud Care Networks stocks the Teltonika PR1KCO28 alongside the gateways and routers it supports, so IT and field-service teams can consolidate antennas, spares, and replacement hardware on a single order.