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Yale B-HSA6010 Alarm Accessory Door/Window Contact White, Accessory for HSA Alarms Including YES-ALARMKIT, Suitable for Main Access Points, White : Amazon.co.uk: DIY & Tools
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Yale AC-DC Sync Alarm Door/window Contact - Sync Smart Home Alarm - 200 m range - Works with Alexa - The Google Assistant - Philips Hue , White : Amazon.co.uk: DIY & Tools
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