Aprilaire 50 Sensing Relay， 24-volt<div style="text-align: left;"><strong>[Product Information]</strong><ul><li id="replacementPartsFitmentBullet" class="" data-doesntfitmessage="We're not sure this item fits your " data-fitsmessage="This fits your "><span class="a-list-item"><span id="replacementPartsFitmentBulletInner"><a href="#" class="a-link-normal hsx-rpp-fitment-focus">Enter your model number</a>to make sure this fits.</span></span></li><li><span class="a-list-item"> Nullify </span></li><li><span class="a-list-item"> Imported </span></li><li><span class="a-list-item"> Voltage Range: 21-24 VAC， 50-60 Hz </span></li><li><span class="a-list-item"> Sensing Current: Minimum of 4.0 Amps </span></li><li><span class="a-list-item"> Also works for Honeywell HE220， HE225， HE260， HE265， HE360 and HE365 humidifiers. </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/41E5OuknunL.jpg" noproxy>