1 mhz to 500 khz lock in amplifier

{"cid":"91217181","title":"SR860 Lock-In Amplifier with 1 mHz to 500 kHz Frequency Range, RS-232 Interfaces, and Touchscreen Data Display by SRS Stanford Research Systems","imgUrl":"https:\/\/img.chinax.com\/nimg\/6e\/35\/d8ab47618c21622cc6e6f5fac387-200x200-1.jpg","attrs":{"Price":"Negotiation","Brand Name":"SRS","Model Number":"SR860","Minimum Order Quantity":"1 set","Place of Origin":"USA","Payment Terms":"T\/T","Supply Ability":"in stock","Product name":"Lock-In Amplifier","Frequency":"500 MHz","Input impedance":"1 M\u03a9 or 50 \u03a9","Output impedance":"50 \u03a9 source","Functions":"Tested, in Full Working Conditions","Interfaces":"IEEE488.2, RS-232, USB device and Ethernet."}}