2 5 4 meters digital speed limit signs

{"cid":"91221842","title":"More Than 300 Meters Visibility Range Digital Speed Limit Signs With IP54 Waterproof Level and Radar Detection Distance 200 Meters","imgUrl":"https:\/\/img.chinax.com\/nimg\/51\/90\/2f1e121da2c9684c164421c662db-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"NobTra","Model Number":"NBTR188-S60-S","Minimum Order Quantity":"1","Delivery Time":"7-15 working days","Place of Origin":"China","Certification":"CE","Packaging Details":"CARTON","Payment Terms":"T\/T","Supply Ability":"5000PCS\/MONTH","Radar Installation":"Integrated Radar","Control Method":"By Phone App","Suggestion install height:":"2.5-4 Meters","Power Source":"12VDC, 220VAC","Installation Type":"With Mounting Brackets","Product Type":"Traffic Sign","Operating Temperature":"-40\u00b0C To 60\u00b0C","Radar Detection distance":"With 200 Meters"}}