What are the differences between the mounting adapters SUN, UN and UNG?

The mounting adapter SUN is approximately 20mm longer than adapter UN. That allows the use of inserts that open the opportunity to plug in either single probes of type ST1 30mm or dual probes of type ST2 without modification of the tubing. This gives you maximum flexibility in the selection of probes.

While using a type UN adapter in combination with a carbon shaft probe there will be an visible gap between the adapter and the probe, we offer a suitable spacer sleeve to fill the gap. The mounting adapter UNG is designed to hold bend probes, first choice for aircraft with front-mounted engines like FES or TMG.