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1 outline size: 150 X 75 MM installation size: 139 X 81 MM;2 working voltage: DC 24V;3 working frequency: 100Hz;4 input mode: 8421 or analog quantity;5 standard current: 2A; maximum current: 5A; ****************************************************************Customer SatisfactionPlease don\'t hesitate to contact us if you have any questions or concerns before or after your purchase. We are committed to your 100%satisfaction. Payment1. Full payment must be paid within 7 days after placing your order.2. We will make delivery of the goods within 3 working days after receiving your payment.Shipping and handing1. DHL is our preferred shipping method. Meanwhile TNT,EMS,Fedex,UPS are available.2. Make sure to leave telephone number when filling your buyer information.3.You can check the goods where it is in transit through tracking NO . Refund(Exchange Only)1.If you are not satisfied with your purchase, you can exchange the items received. you must contact us within 5 days of th