Sold plane and vacated hangar. I have an upgraded SwitchBox for sale I no longer need. Loved it for turning on a space heater pointed up my cowl flap opening for engine pre-heat in winter. Also used it with a portable AC unit to precool the cockpit with a flex duct I poked thru the pilot side window in heat of summer.

Turn on engine heaters, chargers, lights, etc. from an app on your phone. The upgrade includes latest 4g (I think) available from SwitchBox and the backup battery to stay connected. The unit also includes the base and extended antennas.

But wait there’s more! I just renewed the 3-month SwitchBox Ultra plan (AT&T) subscription that I will leave active until it expires to get you through winter. Not sure of the exact expiration but will convey to buyer once sold along with device’s cell number and password for the phone app.

$175 shipped in contiguous US.

Interested. Do you need to use their SIM card, or can any SIM card work?

Hi Josh - I think you have to use their SIM and they activate the number on their end. Never tried other SIM so not sure…

It wants an AT&T sim card.

I have used my two switchboxes with different canadian sim cards