Specifications: Operating voltage: 3V – 5V DC Dimensions: 26.5 x 24.5mm on board MT8870 complex frequency decoder chip on board voice input interface on board 5 led indicator Main pin...
Features Wide detecting scope Stable and long life Fast response and High sensitivity Specification Item Parameter Min Typical Max Unit VCC Working Voltage 4.9 5 5.1 V PH Heating consumption...