{"product_id":"dahua-airshield-dhi-hy-sa21a-w2-wireless-smoke-detector-white-photoelectric-alarm","title":"DAHUA AirShield DHI-HY-SA21A-W2 Wireless Smoke Detector White Photoelectric Alarm","description":"\u003cp\u003eThe DAHUA DHI-HY-SA21A-W2 AirShield wireless smoke detector utilizes split-spectrum photoelectric technology for early fire detection. It features a loud 85–90 dB audible alarm with visual LED indicators for standby, fault, and low battery states. Powered by a replaceable CR123A lithium battery, the unit operates for up to three years without wiring. Two-way encrypted wireless communication ensures reliable connectivity up to 1000 metres in open spaces. Integration with the DMSS mobile application enables real-time remote alerts for enhanced property monitoring. Installation requires simple ceiling mounting suitable for residential homes, apartments, and small commercial environments.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSensor Type\u003c\/strong\u003e: Photoelectric Split-Spectrum\u003cbr\u003e\u003cstrong\u003eAlarm Volume\u003c\/strong\u003e: 85–90 dB @ 3 m\u003cbr\u003e\u003cstrong\u003eBattery Type\u003c\/strong\u003e: 1 x CR123A Lithium (3V)\u003cbr\u003e\u003cstrong\u003eBattery Life\u003c\/strong\u003e: Up to 3 Years\u003cbr\u003e\u003cstrong\u003eWireless Frequency\u003c\/strong\u003e: 433.1–434.6 MHz\u003cbr\u003e\u003cstrong\u003eWireless Range\u003c\/strong\u003e: Up to 1000 m\u003cbr\u003e\u003cstrong\u003eMounting Type\u003c\/strong\u003e: Ceiling Mount\u003cbr\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e: ABS Plastic\u003cbr\u003e\u003c\/p\u003e","brand":"DAHUA","offers":[{"title":"Default Title","offer_id":48397360464087,"sku":"DHI-HY-SA21A-W2","price":60.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0704\/5965\/4359\/files\/DAHI9984_DHI-HY-SA21A-W2_product-image_1.png?v=1780893391","url":"https:\/\/virtuselectronics.com.au\/products\/dahua-airshield-dhi-hy-sa21a-w2-wireless-smoke-detector-white-photoelectric-alarm","provider":"VIRTUS ELECTRONICS","version":"1.0","type":"link"}