AgraTronix 01210 Portable Silage Moisture Meter*DISCONTINUED SEE 07105*. The best way to test silage - fast, convenient, clean, and accurate - tests grains too! Simple testing procedure tests in one minute! Fill sample bag with uniformly chopped forage, place in tester, turn pressure control knob to correct pressure, press sample button, take log reading from digital display, and refer to appropriate log card for percent moisture. No pre-weighing necessary. Tester stays clean because plastic zip-close bags keep sample material from contaminating test cavity. Features latest integrated circuit electronics for dependable and accurate reliability. Accuracy: ±1%-3%. Moisture range: 30%-75% for silage; 10%-47% for grain. Automatic shutoff extends battery life. Has battery-test button. Portable for field use. Factory calibrated - no adjustments necessary. Operates on a single 9V alkaline battery (included). This product is pretested so it may have dust or residue on or in it. Comes with 100 sample bags.