(Alliant Healthcare) These probes are inserted into the myocardium to monitor temperature during open-heart surgery. They feature a removable needle protector and a temperature sensor. They are YSI 400 series compatible and have a direct monitor plug in design. Probes have a 1/4”-dia. plug and 12´ long flexible wire. A reusable extension cable is available separately — ask your sales or customer service representative for details. 25 probes per box.