- Body material:Nickel-plated brass probe, Or Brass Probepolypropylene end cap and epoxy resin potting.Body sealing:To IP65Max ambient temp, probe tip:70°C158°FMax ambient temp, body:60°C140°FMin operating temp:-10°C14°FSignal output, to operate amplifier:0.2 Volts RMS minSignal output, for safety:6.0 Volts peak maxDC resistance:1000 ohms +/- 14%Insulation resistance, wires to probe:500V testMounting thread:5/8 UNF, 18TPIMax recommended lead length:2 meters6.5 feetProbe pressure above atmosphere:Not designed for significant pressure