No Xikabosi Electronics will be happy to serve you! You are welcome to inquire. Contact: Mr. Xie Tel 0510 -83,217,717 Mobile: 13,328,109,530 QQ :: 574 719 205; QQ1344429421 Technical parameters: Product Name: Chinese auto-sensing rod work: sensing data capacity: 14000 Card Type: 125KHz EM ID card reader distance: <5cm power supply: 3.7V rechargeable lithium battery size: 140 * 52 * 22mm means of communication: the USB2.0 Communication speed: 921600 Waterproof grade: IPX4 Protection class: IP54 Explosion levels: EXIA IIBT4 product weight: 280 g Explanation of terms: induction: with patrol patrol rod to go out without contact to the ground point card, simply patrol stick close to the cards, patrol rod itself inductively cards to ground of Dianka position and time recorded. Sensing distance between the sensing distance: Patrol rods and ground point card. Alarm Patrol rods front end: When the full data inside the patrol rod, a red light will blink continuously alarm will sound at the same time. Waterproof grade: IPX4 splash of water that is subject to any direction and will not affect the normal patrol rod work. Protection class: IP54 completely prevent the intrusion of foreign objects, although not completely prevent dust intrusion, but the intrusion of dust will not affect the use of patrol rod. Explosion levels: EXIA II BT4 explosion-proof electrical equipment Class B, the temperature level of T4. The T4 level the temperature was 135 ° C.