{"product_id":"esp-magduo-2-wire-fire-alarm-sounder-red","title":"ESP MagDuo 2-Wire Fire Alarm Sounder - Red","description":"\u003ch5\u003eDescription\u003c\/h5\u003e\n\u003cp\u003eThe ESP MagDuo is a 2-wire fire alarm sounder designed for ceiling mounting in commercial and residential fire detection systems. The unit measures 150mm diameter and 80mm depth, with a red ABS housing and black grille apertures around the perimeter that allow the sound to project 360 degrees across a room or corridor. The built-in end-of-line function eliminates the need for external resistors when wiring the device into conventional fire alarm panels.\u003c\/p\u003e\n\u003cp\u003eDesigned for offices, residential buildings, schools, care homes and retail premises, the MagDuo connects via standard 2-core fire-rated cable and operates on typical 12-24V DC alarm panel outputs. The volume adjustment dial on the underside of the sounder allows the output to be set between approximately 85dB and 102dB at 1 metre, making it suitable for both small rooms requiring lower output and larger open-plan areas needing higher coverage. The device wiring base is included and separates from the sounder head for easier cable termination during installation.\u003c\/p\u003e\n\u003cp\u003eThe red housing carries an IP21C ingress protection rating, making the sounder suitable for most indoor environments but not for outdoor exposure or high-moisture areas such as shower rooms or external canopies. The ABS construction keeps the installed weight to 250g, which is light enough for most standard ceiling tiles in suspended grid systems without requiring additional support. The MagDuo is one component in ESP's wider range of fire detection devices and is typically specified alongside compatible detectors and call points on the same zone wiring.\u003c\/p\u003e\n\u003ch5\u003eSpecification\u003c\/h5\u003e\n\u003ctable class=\"spec_table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Net Weight (KG)\u003c\/td\u003e\n\u003ctd\u003e0.25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Gross Weight (KG)\u003c\/td\u003e\n\u003ctd\u003e0.3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Gross Weight (KG)\u003c\/td\u003e\n\u003ctd\u003e0.25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Length (mm)\u003c\/td\u003e\n\u003ctd\u003e150\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Width (mm)\u003c\/td\u003e\n\u003ctd\u003e150\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Height (mm)\u003c\/td\u003e\n\u003ctd\u003e80\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Length (mm)\u003c\/td\u003e\n\u003ctd\u003e150\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Width (mm)\u003c\/td\u003e\n\u003ctd\u003e150\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Height (mm)\u003c\/td\u003e\n\u003ctd\u003e80\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch5\u003eDownloads\u003c\/h5\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/products_MAGDUOSR_datasheet.pdf\" target=\"_blank\"\u003eProduct Specification Sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/manual_MAGDUOSR.pdf\" target=\"_blank\"\u003eProduct Manual\u003c\/a\u003e\u003c\/p\u003e\n\u003ch5\u003eFrequently Asked\u003c\/h5\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does 2-wire mean?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe sounder connects to the fire alarm panel using just two cores of cable, carrying both power and the trigger signal on the same pair. This simplifies wiring compared to 4-wire devices that need separate power and signal pairs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the built-in end-of-line function?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe sounder includes an internal resistor that allows the fire alarm panel to monitor the circuit and detect cable faults. Without this, you would need to fit a separate end-of-line resistor at the last device on the zone.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the volume be adjusted after installation?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. A dial on the underside of the sounder adjusts the output between approximately 85dB and 102dB at 1 metre. This can be set during commissioning and re-adjusted later if needed.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it suitable for outdoor use?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo. The IP21C rating protects against solid objects larger than 12.5mm and vertical drips of water, but the MagDuo is intended for indoor use only. It is not rated for direct weather exposure or high-moisture environments like shower rooms.\u003c\/p\u003e","brand":"ESP","offers":[{"title":"Default Title","offer_id":45294117519627,"sku":"MAGDUOSR","price":26.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/8993\/3835\/files\/MAGDUOSR_cbf9aea5-1648-4a3e-a48f-a952e8181991.jpg?v=1714668295","url":"https:\/\/niori.co.uk\/products\/esp-magduo-2-wire-fire-alarm-sounder-red","provider":"Niori","version":"1.0","type":"link"}