Replacement Battery for Yale HSA6010 Door - Window Detector | eBay
Yale Sync Wireless Door Contact sensor
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Yale HSA APP Enabled Alarm Door Contact & Magnet B-HSA6010
Yale Mini Door/Window Contact - Sync Alarm Accessory - Discrete and Stylish - 200m Range - Works with Alexa, Google Assistant and Philips Hue : Amazon.co.uk: DIY & Tools
Yale HSA Wireless Door & window Intruder alarm contact
Yale HSA APP Enabled Alarm Door Contact & Magnet B-HSA6010