100% brand new, good quality and high performance. It is handy and highly reliable. <br>SPECIFICATIONS <br>frequency range: 1Mhz---2400Mhz <br>RF power range: 0.1W---50W <br>impedance input: 50Ohm accuracy: +/- 10% when the frequency is 140Mhz~170Mhz,400Mhz~470Mhz <br>response time: 0.2s. <br>working tempreture: 0~40℃<br>battery: 1.5V(AAA) x3 <br>current consumption: about 100mA <br>auto power off time: 80s <br>Package contents: <br>1 x GY561<br>1 x adapter<br>1 x antenna<br>1 x English manual<br><br><br><br><img src="http://gdetail.image-gmkt.com/675/266/770266675/2017/5/bdae64d0-b330-4a0d-9be9-104e09b9c84c.jpg"><br><img src="http://gdetail.image-gmkt.com/675/266/770266675/2017/5/45788d12-ff8c-4469-bc13-6370a94cf382.jpg">