Use these two-wire feedthroughs to make connections inside vessels or chambers. Use with probes with miniconnectors. Feedthroughs withstand vacuum conditions or pressures to 100 psi. Stainless steel and epoxy construction. Temperature range: -40 to 250°> F (-40 to 121°> C). Feedthroughs have a 1/2'' NPT(M) fitting. Include 48''L, PTFE insulated, 24-gauge (0.0201'' wire dia) lead wires.