The BDX-20 Digital Pin Moisture Meter features an internal calibration check, "Low Batt" audio warning, Alarm set point - alerts to user-selected MC level and an adjustable auto-off timer (1, 4, or 10 minutes). It works with all Delmhorst electrodes and is powered by 2 AA alkaline batteries. The meter includes temperature correction ranging from 0°-255°F (-18°-124°C) and a QR code for quick access to support materials and registration. Compact and lightweight, it measures 8.65in x 2.85in x 1.60in (21.97cm x 7.24cm x 4.06cm) and weighs just 8.6oz (244g). A hard plastic carrying case and a 2-year manufacturer's warranty (with bonus coverage for online registration) are included.