Digital Clamp Meter Multimeter DC AC Voltage Diode Continuity Tester LCD Display Display: 3 -digit LCD, with a max reading of 3999 Jaw Opening Capability: 26mm (approx.) ; Max Measurable aConductor: 26mm (approx) ; Battery: 2 x 1.5V AAA battery Overrange Indication: "OL" shown on the display Environment: Temperature: 0~40C ; Relative Humidity: &lt;75%RH