2 wire voltmeter with red display

{"cid":"91219651","title":"New 0.56\\\" Inch Digital LED Voltmeter AC 30-500V Panel Meter Tester with Red Display 2 Wire Tester 110V 220V 380V 22mm Mounting","imgUrl":"https:\/\/img.chinax.com\/nimg\/8a\/ae\/c7e5210814aeee09c249b3ce392e-200x200-1.jpg","attrs":{"Price":"$0.50-0.68","Brand Name":"creatall","Model Number":"lm2596 step-down schaltregler","Minimum Order Quantity":"200","Display color":"Red","Display size":"0.56\" inch LED digital tube","Mounting Type":"standard","Minimum measure input":"DC 30V","Maximum measure input":"DC 500V","Refresh rate":"200mS \/ time","Other option color":"green blue","Place of Origin":"Guangdong, China","Installation size":"46 X 27mm","Wire length":"20cm","Wiress Numbers":"2 wires","Reverse polarity protection":"Yes","Functional Application":"Voltmeter"}}

{"cid":"91225985","title":"YZ LED Voltmeter Digital Indicator Single Display Panel Meter AD112-50 AC60-500V 1% Accuracy Large Display Small","imgUrl":"https:\/\/img.chinax.com\/nimg\/3c\/89\/8199b24e510a7ecf470c84eac65f-200x200-1.jpg","attrs":{"Price":"","Brand Name":"YiZhi","Model Number":"AD112-50","Minimum Order Quantity":"","Supply Voltage":"AC60-500V","Product name":"Voltmeter","Measurement accuracy":"\u00b11%","Head type":"Square head\/ Round head","Color":"Red Green Yellow Blue White","Dimensions":"22MM(0.87in)","Flame retardant base":"PA66","Display Type":"Digital Only","Place of Origin":"Zhejiang, China","Operating Temperature":"-20 \u2103 ~ + 55 \u2103","Package":"Box Package"}}