Features: Digital LCD display with white backlit Leakage volume in dangerous zone will sound beeping and a red lamp flashing Low leakage volume display for warning Specifications: Model: DT-2G Range: 0 to 9.99 mW/.cm2 Warning Values: 5.0mW/cm2 Power source: 9V battery(Not included) Package includes: 1 * DT-2G digital multimeter