Specification Brand : BSTUOKEY BulletPoint1 : ✔️This mini rfid reader is ABS material Shell,hidden installation ,LED Working Light Display, BulletPoint2 : ✔️mini small size 2cm*2cm*2.5cm,ip67 waterproof,No relay /no user capacity,must work together with access controler or access control board panel!!! BulletPoint3 : ✔️125Khz rfid card support,Card Type: EM-ID Card (Can't support HID, Cobra, APCiK etc) BulletPoint4 : ✔️Type: EM RFID 125khz reader, Can't work alone, Normally work with Control board/Fingerprint devcie/Master controller to build completely Security Access Control System. BulletPoint5 : ✔️Support Wiegand 26-Bit and Wiegand 34-Bit; Built-in LED (Double Color LED) and Loud Speaker (Buzzer). BulletPoint6 : 【 Communication format 】RS232, RS485, TTL frequency and other communication specifications meet your needs Color : Black ExternallyAssignedProductIdentifier1 : 0711420705337 ExternallyAssignedProductIdentifier2 : 711420705337 IncludedComponents : User manual ItemDisplayWeight : 0.05 kilograms ItemName : BSTUOKEY Mini RFID Proximity Card Reader IP68 Waterproof 125Khz EM Card Reader for Access Control System wiegand26/34 Output,No Relay/No User Capacity ItemPackageDimensions_Height : 1.57 inches ItemPackageDimensions_Length : 1.97 inches ItemPackageDimensions_Width : 1.97 inches ItemPackageQuantity : 1 ItemTypeKeyword : commercial-access-wiegand-card-readers Manufacturer : BSTUO ModelNumber : SCR02D NumberOfItems : 1 PartNumber : SCR02D ProductDescription : Product description: 1:Since lots of compatible cards popular at the market.some cards is marked EM-ID. But actually it just the compatible cards,so you need make sure your EM-ID Cards is a real EM-ID. 2:This Wiegand 26/34 RFID Card Reader is just reading function only,it support 125Khz EM card,it Can't work alone(No Relay), need to work with access control panel or door access controller. Specifications: Operating Voltage:DC 12V Consumed Current:0-100mA Support cards:TK4001\EM4100/M1 etc. Read Range:0mm-100mm(related to the card or the environment) reader interval:less than 0.5S Format:Wiegand 26/Wiegand 34(Setting by yourself) Distance of transmission:WG26/34 Mini Size:25mm x 25mm x 20mm Waterproof Grade:IP68 Waterproof Grade Package Included: 1xDoor Access Control Reader