MOELLER SENDING UNIT ELECTRICAL FOR 12" TO 24" TANKS - Swingarm electric sending units gather fuel level information the same way as the mechanical sending units. It does however connect to a dash mounted gauge without a conversion capsule. They are also a DIY product, letting the consumer measure their tank depth and make theswingarm the correct length. Calibrated to 33-240 ohm's. An industry standard. Requires a dash mounted gauge.