Herpstat has several options, 1-6 probes I believe. I have several herpstat 4s that run radiant heat panels and flexwatt on my pvc cages. Many people run multiple identical heat on one probe but yes it is more risky, I run one probe per heating device myself. Burns are not rare at all, we see them around here often on unregulated or improperly regulated heat mats with glass tanks although most try to stress immediately to new members about the importance of regulating any heat source. Proportional thermostat would be far better than an on/off type or a rheostat for keeping temps correct.
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