Sigtronics SPA-400 Panel-Mount Intercom
TSO'd four-place panel-mount intercom, made in the USA.

Mode S ES transponder with a built-in WAAS GPS position source.
The Stratus ESG builds the WAAS GPS position source into the transponder itself, so an aircraft with no approved GPS on board can still achieve ADS-B Out from a single box. Slide-in replacement architecture keeps the installation contained. Sold as a used unit; send details of your existing transponder tray and antenna arrangement.
| Category | Avionics |
|---|---|
| Availability | In stock |
Price for this specific unit. Shipping, export paperwork and any applicable duties are quoted separately. Request a quote to confirm availability and total cost for your location.
Fitment, part numbers, approvals and price are confirmed against your aircraft’s documentation before anything is quoted. Nothing on this page is an approval or certification claim.