https://www.zjepowsens.com/eas-system/clothes-senor-8-2mhz-rf-gate-antenna-system-eas-security-system-shop-gate
ES004 Clothes senor 8.2mhz RF EAS security system security gate - Zhejiang Epowsens Electronics...
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https://elocksecurity.com/product/intelligent-card-induction-energy-saver-es004
Intelligent card induction energy saver ES004 - Elock Security
Jul 1, 2021 - Intelligent card induction energy saver ES004: Only the right room card with valid time can get the power.
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