Extech MO290-HP  

Extech MO290-HP: Moisture Hammer Probe

Dual sharp pins with 1.6"/4cm pin length

Moisture Hammer Probe for select Extech Moisture Meters. Hammer probe has 2 sharp pins for penetrating hard surfaces. Pins are 1.6 in.(4 cm) long. For use with select Extech moisture meters that accept external moisture probes. Comes with 4 pins.