You might find a Johnson A419 locally not at a box store but a good appliance supply or eletronics supply place might have one. I too would recommend the herpstat or any other proprtional T-stat designed for herps. The hydrofarm is ok for an on/off unit. The probe accuracy is poor very poor I have been testing 3 units and they read high of correct and do not read the same. You get what you pay for.
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