Moisture Hammer Probe
Extech MO290-HP - Extech Instruments Corporation
The Extech MO290-HP is a Moisture Hammer Probe for select moisture meters. The hammer probe has two sharp pins for penetrating hard surfaces. The pins themselves are 4 cm (1.6 in) long. For use with select Extech moisture meters that accept external moisture probes. Comes with 4 pins.