AgraTronix HST-1 [07105] Advanced Hay, Straw, Silage Tester w/ Density Compensation. Fast, accurate, digital hay moisture tester with a 20 in. stainless steel probe and tip. Measures 8%-72% moisture content. Automatic Density Compensation feature measures push force to determine whether bale is high or low density, then adjusts moisture result for more precise accuracy. Memory can store results for up to 64 bales with a total of 1,000 savable moisture and temperature readings. USB port for updates and measurement results download. Rubber handle grip allows for easier push or pull out of probe in dense bales. Also features a choice for hay or straw bales (separate mode for silage), offset calibration, backlit LCD screen, and automatic shutdown.