self lock relay module for arduino

{"cid":"91221578","title":"GROW K215-V1.3+R502-F Self-locking Relay Output DC10-30V Fingerprint Control Board+R502-F Waterproof Small Fingerprint Module","imgUrl":"https:\/\/img.chinax.com\/nimg\/dc\/be\/44beffbbee0a182e3367a970260f-200x200-1.jpg","attrs":{"Minimum Order Quantity":"1","Delivery Time":"Peak Season Lead Time: within 15 workdays Off Season Lead Time: within 15 workdays","Place of Origin":"China","Certification":"CE","Packaging Details":"Carton","Payment Terms":"T\/T,PayPal","Supply Ability":"5000","Model NO.":"K215-V1.3+R502-F","Screen":"as Picture","Communication Interface":"RS232, USB","Fingerprint Capacity":"200","Power Supply":"DC 10V--30V","Standby Current":"40mA","Transport Package":"Standard Export Carton Package","Specification":"Power supply: DC 10V--30V","Trademark":"GROW","Origin":"China","HS Code":"8471609000","Voice Service":"Without Voice Service","Clock":"Without Clock","Color":"as Picture","Samples":"US$ 22.8\/Piece 1 Piece(Min.Order) |","Customization":"Available | Customized Request","Shipping Cost":"about shipping cost and estimated delivery time.","Payment Method":"Initial Payment Full Payment","Currency":"US$","Return&refunds":"You can apply for a refund up to 30 days after receipt of the products."}}

{"cid":"91192910","title":"Lightweight Industrial MRO Products , SE-E1 347017-10 Protection Module","imgUrl":"https:\/\/img.chinax.com\/nimg\/19\/ca\/1fe49787dbda198da35a0822f2f3-200x200-1.jpg","attrs":{"Price":"negotiate","Brand Name":"KRIWAN","Model Number":"SE-E1","Minimum Order Quantity":"1","weight":"0.5kg","Place of Origin":"German","Supply Ability":"50UITE\/DAY","SIZE":"5.8*3.4*5cm","serial number":"52A120S10"}}