3 axis digital readout with rs 232

{"cid":"91204360","title":"DRO SDS2-3VA Screen 3 Axis Digital Readout Systems Meter For Griding Milling Machine","imgUrl":"https:\/\/img.chinax.com\/nimg\/1e\/0d\/7b69d4b0ade5472eca46b41e5b86-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"SINO","Model Number":"SDS2-3VA, KA300, Ka500","Minimum Order Quantity":"1 PC","Delivery Time":"5-8 days","Certification":"CE,RoHS","Place of Origin":"Guangzhou, CHINA","Payment Terms":"T\/T, L\/C, Western Union, ","Supply Ability":"1000 pcs per month","Packaging Details":"Carton","Name":"ka300 Glass linear ruler Sino SDS2-3VA Display Digital Readout Meter","Number of Axis":"3 axis Digital Readout Kits Counter","Color":"Grey","Signal":"Digital readout system: TTL \/ RS422","Voltage":"Digital readout kits: AC100-240V \/ 50-60Hz","Suitable for":"Milling machine, grinding machine, EDM machine","Resolution":"1um,5um,0.5um","Material":"Metal"}}