Why are acoustic magnetic security doors better than radio frequency ones?

• Why are supermarket security doors with acoustic magnetic systems better than those with radio frequency systems? What is the reason?
• Answer: This is because the acoustic magnetic system uses ultra-low frequency technology, which is not easily affected by environmental interference.
• In addition, the detection performance has also been improved.
• Therefore, the acoustic magnetic security door has greatly improved in anti-interference ability, equipment workmanship, and performance.
• It is a high-end product, so it is much more expensive than the radio frequency system’s anti-theft device.