Sandel has introduced Reversionary Attitude for the SN3500 and SN4500 Primary Navigation Displays. With this new safety feature, you can call up an attitude display on the SN3500/SN4500 at the flip of a switch while retaining heading and navigational information. Attitude information is provided by Sandel's solid-state SG120 AHRS.

The Reversionary Attitude feature is now available for the SN3500 and SN4500. Upgrade requires a Sandel SG102 or other suitable AHRS. SN3500 units with serial number below 2000 will require an upgrade to LED backlighting.