The Model 501K-1 is a Manual Engine Control Module, which has been designed to manually control the engine via a key switch on The front panel.<br> The module is used to and stop the engine, indicating fault conditions; automatically shutting down the engine and indicating the engine failure by LED giving true first up fault annunciation.<br> SPECIFICATION<br> DC Supply----9~33V continuous.<br> Alternator Input Range----15~305V AC RMS<br> Alternator Input Frequency---- 50~60Hz at rated engine speed.<br> Magnetic Input Range----0.5V~+/-80V<br> Magnetic Input Frequency----2300Hz~6000Hz<br> Relay Output----16 Amp DC at supply voltage<br> Run Relay Output----16 Amp DC at supply voltage<br> Alarm Output----1Amp DC at supply voltage<br> Operating Temperature Range----- -30~70celsius<br> Colour: black<br> Material: plastic<br> Package Contents:<br> 1 x Engine Control Module<br> 2 x Accessories<br> 2 x Key<br> Only the above package content, other products are not included.<br> Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.