These sandblasted, hardened-steel pins with a single-piece design prevent bending and create an improved bonding surface for abrasion-resistant insulation. The insulation extends all the way to the connection to the probe, so even if you drive the pins all the way into the wall cavity, the drywall will not affect the measurement. These 6" pins come in a 2-pack.

These sandblasted, hardened-steel pins with a single-piece design prevent bending and create an improved bonding surface for abrasion-resistant insulation. The insulation extends all the way to the connection to the probe, so even if you drive the pins all the way into the wall cavity, the drywall will not affect the measurement. These 6" pins come in a 2-pack.