{"product_id":"dahua-dhi-ard821-w2-airshield-wireless-panic-button-433mhz-ip54-emergency-alert","title":"DAHUA DHI-ARD821-W2 AirShield Wireless Panic Button 433MHz IP54 Emergency Alert","description":"\u003cp\u003eThe DAHUA DHI-ARD821-W2 delivers instant emergency alerts through secure 433MHz wireless communication with AES128 encryption. This compact panic button supports intrusion, fire, gas leak, and medical emergency scenarios with multi-color LED status feedback. Accidental press prevention ensures reliable operation in busy indoor environments including homes, offices, and care facilities. The IP54-rated housing withstands dust and water splashes while the CR2032 battery provides up to 3 years of service. Flexible mounting options include wall brackets, straps, and portable carrying for immediate access during emergencies. Two-way encrypted communication maintains signal stability through frequency hopping technology for interference-free operation.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eCommunication Frequency\u003c\/strong\u003e: 433.1–434.6 MHz\u003cbr\u003e\u003cstrong\u003eEncryption Standard\u003c\/strong\u003e: AES128\u003cbr\u003e\u003cstrong\u003eBattery Type\u003c\/strong\u003e: CR2032\u003cbr\u003e\u003cstrong\u003eBattery Life\u003c\/strong\u003e: Up to 3 years (2 presses\/week)\u003cbr\u003e\u003cstrong\u003eIP Rating\u003c\/strong\u003e: IP54 (dust\/splash resistant)\u003cbr\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e: 2.17\" × 1.42\" × 0.56\"\u003cbr\u003e\u003cstrong\u003eNet Weight\u003c\/strong\u003e: 0.04 lb\u003cbr\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e: 14°F to 131°F (indoor use)\u003cbr\u003e\u003cstrong\u003eCommunication Range\u003c\/strong\u003e: Up to 2,625 ft open space\u003cbr\u003e\u003cstrong\u003eLED Indicator\u003c\/strong\u003e: Multi-color status feedback\u003cbr\u003e\u003c\/p\u003e","brand":"DAHUA","offers":[{"title":"Default Title","offer_id":48397362266327,"sku":"DHI-ARD821-W2","price":28.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0704\/5965\/4359\/files\/DAHI9978_DHI-ARD821-W2_product-image_1.png?v=1780906257","url":"https:\/\/virtuselectronics.com.au\/products\/dahua-dhi-ard821-w2-airshield-wireless-panic-button-433mhz-ip54-emergency-alert","provider":"VIRTUS ELECTRONICS","version":"1.0","type":"link"}