retroreflector meter with 3 measurement error

{"cid":"91200138","title":"QD measurement range 0 to 400 Mcd per square meter lux Retroreflector Meter with repeatability measurement error less than or equal to 3 percent and working time greater than 72 hours","imgUrl":"https:\/\/img.chinax.com\/nimg\/d3\/09\/3a3f58e1927db5a8433c15a1dfde-200x200-1.jpg","attrs":{"Price":"3000-3500","Brand Name":"STP","Model Number":"STP-MR","Minimum Order Quantity":"1","Delivery Time":"7 days","Place of Origin":"CHINA","Certification":"CCC","Packaging Details":"inner box and master carton , 1pc per carton","Payment Terms":"T\/T","Supply Ability":"1000","Data storage space":"16G\uff08More Than 200000 Test Data\uff09","Overall volume":"700mm X 135mm X 115mm","QD Measurement range (optional)":"0-400 Mcd\/ ( M\u00b2.lx)","Color temperature":"2856\u00b150K(Standard A Light Source)","Repeatability measurement error":"\u22643%","Ambient temperature:":"-15\u2103~+60\u2103","The complementary angle":"1.24\u00b0","Measurement of aperture area":"340mm X 95mm"}}