ABS Plastic shell. the shell of the reading head is made of heat-resistant frost-resistant ABS material ,with a fireproof flame-retarda,the sealing type is strong and suitable for both indoor and outdoor use. Strong anti-interference ability the shell of the reading head is made of heat-resistant frost-resistant design that is safe and durable. Waterproof function the internal design of the card reader is fully sealed with ,which is fully waterproof and can be installed in outdoor environments with strong applicability. With RS232 Serial Port.<br><br>Colour:Photo Color Material:ABS<br><br>Package Contents: 1 x Access Control Reader<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.