QMTL via Amazon offers the Tacklife WM01 Classic Digital Wood Moisture Meter for $20.97. Coupon code "Y7VPAA58" cuts that to $14.05. Plus, Prime members receive free shipping. That's the lowest price we could find by $13. Features include an LCD screen, wood RH measurement range of 2% to 70%, integrated electrode pins, data hold function, and 10-minute auto-off. Three AAA batteries are required and included.