批发手持式金属探测器,带音频和红色LED警报

工作频率: 52kHz + / - 10% (正弦波) 灵敏度: ) 5厘米(对于美国的四分之一) 适应症:声音警报和LED (红色)警报 音调改变为金属尺寸变化 闪烁时,本机工作正常,绿色指示灯 耳机插孔1/ 8英寸(静音运行) 低灵敏度:以降低的敏感性,来代替与干扰 在两个正面和背面的LED指示器是可选 低电量指示 需要一节9V电池 |
Operating frequency: 52kHz +/ - 10% (sine wave) Sensitivity: ) 5cm (for a US quarter) Indication: audio alert and LED (red) alert Audio tone changes as the metal size changes Blinking green indicator when the unit is working properly Headphone jack: 1/8-inch (for silent operation) Low sensitivity: to lower the sensitivity, used in place with interference LED indicators on both front and back faces are optional Low battery indication One 9V battery required |