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System Sensor COSMO-4W 4 wire Smoke CO Detector Combo

$146.95

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System Sensor i4 Series 4-wire Smoke / CO Detector

If you're looking for an aesthetically pleasing, cost effective solution to detecting smoke and carbon monoxide then the System Sensor i4 Series Smoke/CO Combination detector is what you've been looking for.

The COSMO-4W is a 4-wire smoke detector with built-in carbon monoxide detector. This is compatible with most hardwired alarm systems. You will have to use a control module. For the COSMO-4W you will use the COSMOD4W control module. The module is the interface between the detector and the panel. It allows a 2-wire or 4-wire device to communicate distinct smoke, maintenance and CO signals to the panel while reducing wiring requirements as compared to separate smoke and CO devices. The modules can handle 12 devices on a loop. In addition to that all COSMOs have a built-in sounder allowing the COSMOD module to act as a reversing relay, setting off all of the detector sounders at once.

When you run back to the main control panel from the module you will have two wires for power, two wires for the smoke zones, and 2 wires for the CO zones. The module will derive its power from your panel's auxiliary power terminals.

Installation Sheet
Data Sheet

QUESTIONS & ANSWERS

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  • Can i use just one combo smoke/co detector--cosmo-4w---in the middle of a daisy chain consisting of 6- 4 wire system sensor 4wtab smoke detectors, using the cosmo-4w interface module....or do I have to have all 6 units being combo units. As well what annunciation sound can i expect from my outside and inside horns from a co detection....horns are 20+ years old. Many thanks.

    Any combination of 4-W smokes and 4-W COSMOS can be used when a 4-W COSMOD is in place. The sound the sirens make depends solely on the alarm system and siren driver it uses. If it has a specific sound output for CO-triggered zones it will do so, otherwise, it will likely sound the same as a fire alarm.

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System Sensor 4WT-B Four Wire Smoke Detector With Built-In Heat Sensor 4 wire type smoke detectors are compatible with all...
  • {"id":7037377925,"title":"System Sensor 4WT-B Four Wire Smoke Detector With Built-In Heat Sensor","handle":"system-sensor-4wt-b-four-wire-smoke-detector","description":"\u003ch2\u003eSystem Sensor 4WT-B Four Wire Smoke Detector With Built-In Heat Sensor\u003c\/h2\u003e\n\u003cp\u003e4 wire type smoke detectors are compatible with all alarm systems old and new, unlike the less popular 2 wire type. This model is the same as the 4w-b except it has a built-in 135-degree heat sensor as well. We're often asked which type we recommend, 2 wire type or 4 wire type. If you are going to have only a few and they will all be on one level, we recommend 2 wire type. On the other hand, if you will have smoke detectors on more than one level, will have more than a four or five, or you need them with built-in sounders we then recommend the 4 wire type.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1659\/9809\/files\/i3-Series_DataSheet_A05-0318.pdf?1140931643100688259\" title=\"i3 Series Smoke Data Sheet\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eData Sheet\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1659\/9809\/files\/i3_Series_Manual_I56-1800.pdf?1140931643100688259\" title=\"i3 Series Installation Manual\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstallation manual\u003c\/a\u003e\u003c\/p\u003e","published_at":"2016-10-20T04:30:00-04:00","created_at":"2017-01-23T07:20:09-05:00","vendor":"System Sensor","type":"Four Wire Smoke Detectors","tags":["4WT-B","4WTB","Four Wire Smoke Detectors","Hardwired Sensors","Smoke Detectors","System Sensor"],"price":6495,"price_min":6495,"price_max":6495,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":24526617605,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"Sys 4WT-B","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"System Sensor 4WT-B Four Wire Smoke Detector With Built-In Heat Sensor","public_title":null,"options":["Default Title"],"price":6495,"weight":454,"compare_at_price":null,"inventory_quantity":8,"inventory_management":"shopify","inventory_policy":"continue","barcode":"Sys 4WT-B","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/www.alarmsystemstore.com\/cdn\/shop\/products\/system-sensor-4wt-b-four-wire-smoke-detector-with-built-in-heat-sensor-474531.jpg?v=1595526324","\/\/www.alarmsystemstore.com\/cdn\/shop\/products\/system-sensor-4wt-b-four-wire-smoke-detector-with-built-in-heat-sensor-346795.jpg?v=1595526324","\/\/www.alarmsystemstore.com\/cdn\/shop\/products\/system-sensor-4wt-b-four-wire-smoke-detector-with-built-in-heat-sensor-617358.jpg?v=1595526324"],"featured_image":"\/\/www.alarmsystemstore.com\/cdn\/shop\/products\/system-sensor-4wt-b-four-wire-smoke-detector-with-built-in-heat-sensor-474531.jpg?v=1595526324","options":["Title"],"media":[{"alt":"System Sensor 4WT-B Four Wire Smoke Detector With Built-In Heat Sensor - AlarmSystemStore.com","id":7363179216998,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1024,"width":1024,"src":"\/\/www.alarmsystemstore.com\/cdn\/shop\/products\/system-sensor-4wt-b-four-wire-smoke-detector-with-built-in-heat-sensor-474531.jpg?v=1595526324"},"aspect_ratio":1.0,"height":1024,"media_type":"image","src":"\/\/www.alarmsystemstore.com\/cdn\/shop\/products\/system-sensor-4wt-b-four-wire-smoke-detector-with-built-in-heat-sensor-474531.jpg?v=1595526324","width":1024},{"alt":"System Sensor 4WT-B Four Wire Smoke Detector With Built-In Heat Sensor - AlarmSystemStore.com","id":7363179249766,"position":2,"preview_image":{"aspect_ratio":1.0,"height":1024,"width":1024,"src":"\/\/www.alarmsystemstore.com\/cdn\/shop\/products\/system-sensor-4wt-b-four-wire-smoke-detector-with-built-in-heat-sensor-346795.jpg?v=1595526324"},"aspect_ratio":1.0,"height":1024,"media_type":"image","src":"\/\/www.alarmsystemstore.com\/cdn\/shop\/products\/system-sensor-4wt-b-four-wire-smoke-detector-with-built-in-heat-sensor-346795.jpg?v=1595526324","width":1024},{"alt":"System Sensor 4WT-B Four Wire Smoke Detector With Built-In Heat Sensor - AlarmSystemStore.com","id":7363179282534,"position":3,"preview_image":{"aspect_ratio":1.0,"height":1024,"width":1024,"src":"\/\/www.alarmsystemstore.com\/cdn\/shop\/products\/system-sensor-4wt-b-four-wire-smoke-detector-with-built-in-heat-sensor-617358.jpg?v=1595526324"},"aspect_ratio":1.0,"height":1024,"media_type":"image","src":"\/\/www.alarmsystemstore.com\/cdn\/shop\/products\/system-sensor-4wt-b-four-wire-smoke-detector-with-built-in-heat-sensor-617358.jpg?v=1595526324","width":1024}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch2\u003eSystem Sensor 4WT-B Four Wire Smoke Detector With Built-In Heat Sensor\u003c\/h2\u003e\n\u003cp\u003e4 wire type smoke detectors are compatible with all alarm systems old and new, unlike the less popular 2 wire type. This model is the same as the 4w-b except it has a built-in 135-degree heat sensor as well. We're often asked which type we recommend, 2 wire type or 4 wire type. If you are going to have only a few and they will all be on one level, we recommend 2 wire type. On the other hand, if you will have smoke detectors on more than one level, will have more than a four or five, or you need them with built-in sounders we then recommend the 4 wire type.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1659\/9809\/files\/i3-Series_DataSheet_A05-0318.pdf?1140931643100688259\" title=\"i3 Series Smoke Data Sheet\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eData Sheet\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1659\/9809\/files\/i3_Series_Manual_I56-1800.pdf?1140931643100688259\" title=\"i3 Series Installation Manual\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstallation manual\u003c\/a\u003e\u003c\/p\u003e"}
System Sensor 4WTA-B Four Wire Smoke Detector With Built-In 135 Degree Fixed Heat Sensor & Sounder
  • {"id":7037377989,"title":"System Sensor 4WTA-B Four Wire Smoke Detector With Built-In 135 Degree Fixed Heat Sensor \u0026 Sounder","handle":"system-sensor-4wta-b-four-wire-smoke-detector","description":"\u003ch2\u003eSystem Sensor 4WTA-B Four Wire Smoke Detector With Built-In 135 Degree Fixed Heat Sensor \u0026amp; Sounder\u003c\/h2\u003e\n\u003cp\u003e4-wire type smoke detectors are compatible with all alarm systems, unlike the less popular 2-wire type. This model is the same as the 4wt-b model except it has a built-in sounder as well. We're often asked which type we recommend, 2-wire type or 4-wire type. If you are going to have only a few and they will all be on one level, we recommend 2 wire types. On the other hand, if you will have smoke detectors on more than one level and wish to label them individually, we then recommend the 4-wire type.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1659\/9809\/files\/i3-Series_DataSheet_A05-0318.pdf?1140931643100688259\" title=\"i3 Series Smoke Data Sheet\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eData Sheet\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1659\/9809\/files\/i3_Thermal_Manual_I56-2170.pdf?1140931643100688259\" title=\"i3 Series Smoke Installtion Sheet\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstallation Sheet\u003c\/a\u003e\u003c\/p\u003e","published_at":"2016-10-20T04:30:00-04:00","created_at":"2017-01-23T07:20:09-05:00","vendor":"System Sensor","type":"Four Wire Smoke Detectors","tags":["4WTA-B","4WTAB","Els PW 22611","Four Wire Smoke Detectors","Hardwired Sensors","Smoke Detectors","System Sensor"],"price":7495,"price_min":7495,"price_max":7495,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":24526618117,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"Sys 4WTA-B","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"System Sensor 4WTA-B Four Wire Smoke Detector With Built-In 135 Degree Fixed Heat Sensor \u0026 Sounder","public_title":null,"options":["Default Title"],"price":7495,"weight":454,"compare_at_price":null,"inventory_quantity":24,"inventory_management":"shopify","inventory_policy":"continue","barcode":"Sys 4WTA-B","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/www.alarmsystemstore.com\/cdn\/shop\/products\/system-sensor-4wta-b-four-wire-smoke-detector-with-built-in-135-degree-fixed-heat-sensor-sounder-178558.jpg?v=1595526296","\/\/www.alarmsystemstore.com\/cdn\/shop\/products\/system-sensor-4wta-b-four-wire-smoke-detector-with-built-in-135-degree-fixed-heat-sensor-sounder-244770.jpg?v=1595526296","\/\/www.alarmsystemstore.com\/cdn\/shop\/products\/system-sensor-4wta-b-four-wire-smoke-detector-with-built-in-135-degree-fixed-heat-sensor-sounder-724651.jpg?v=1595526296"],"featured_image":"\/\/www.alarmsystemstore.com\/cdn\/shop\/products\/system-sensor-4wta-b-four-wire-smoke-detector-with-built-in-135-degree-fixed-heat-sensor-sounder-178558.jpg?v=1595526296","options":["Title"],"media":[{"alt":"System Sensor 4WTA-B Four Wire Smoke Detector With Built-In 135 Degree Fixed Heat Sensor \u0026 Sounder - AlarmSystemStore.com","id":7363168960614,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1024,"width":1024,"src":"\/\/www.alarmsystemstore.com\/cdn\/shop\/products\/system-sensor-4wta-b-four-wire-smoke-detector-with-built-in-135-degree-fixed-heat-sensor-sounder-178558.jpg?v=1595526296"},"aspect_ratio":1.0,"height":1024,"media_type":"image","src":"\/\/www.alarmsystemstore.com\/cdn\/shop\/products\/system-sensor-4wta-b-four-wire-smoke-detector-with-built-in-135-degree-fixed-heat-sensor-sounder-178558.jpg?v=1595526296","width":1024},{"alt":"System Sensor 4WTA-B Four Wire Smoke Detector With Built-In 135 Degree Fixed Heat Sensor \u0026 Sounder - AlarmSystemStore.com","id":7363168993382,"position":2,"preview_image":{"aspect_ratio":1.0,"height":1024,"width":1024,"src":"\/\/www.alarmsystemstore.com\/cdn\/shop\/products\/system-sensor-4wta-b-four-wire-smoke-detector-with-built-in-135-degree-fixed-heat-sensor-sounder-244770.jpg?v=1595526296"},"aspect_ratio":1.0,"height":1024,"media_type":"image","src":"\/\/www.alarmsystemstore.com\/cdn\/shop\/products\/system-sensor-4wta-b-four-wire-smoke-detector-with-built-in-135-degree-fixed-heat-sensor-sounder-244770.jpg?v=1595526296","width":1024},{"alt":"System Sensor 4WTA-B Four Wire Smoke Detector With Built-In 135 Degree Fixed Heat Sensor \u0026 Sounder - AlarmSystemStore.com","id":7363169058918,"position":3,"preview_image":{"aspect_ratio":1.0,"height":1024,"width":1024,"src":"\/\/www.alarmsystemstore.com\/cdn\/shop\/products\/system-sensor-4wta-b-four-wire-smoke-detector-with-built-in-135-degree-fixed-heat-sensor-sounder-724651.jpg?v=1595526296"},"aspect_ratio":1.0,"height":1024,"media_type":"image","src":"\/\/www.alarmsystemstore.com\/cdn\/shop\/products\/system-sensor-4wta-b-four-wire-smoke-detector-with-built-in-135-degree-fixed-heat-sensor-sounder-724651.jpg?v=1595526296","width":1024}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch2\u003eSystem Sensor 4WTA-B Four Wire Smoke Detector With Built-In 135 Degree Fixed Heat Sensor \u0026amp; Sounder\u003c\/h2\u003e\n\u003cp\u003e4-wire type smoke detectors are compatible with all alarm systems, unlike the less popular 2-wire type. This model is the same as the 4wt-b model except it has a built-in sounder as well. We're often asked which type we recommend, 2-wire type or 4-wire type. If you are going to have only a few and they will all be on one level, we recommend 2 wire types. On the other hand, if you will have smoke detectors on more than one level and wish to label them individually, we then recommend the 4-wire type.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1659\/9809\/files\/i3-Series_DataSheet_A05-0318.pdf?1140931643100688259\" title=\"i3 Series Smoke Data Sheet\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eData Sheet\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1659\/9809\/files\/i3_Thermal_Manual_I56-2170.pdf?1140931643100688259\" title=\"i3 Series Smoke Installtion Sheet\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstallation Sheet\u003c\/a\u003e\u003c\/p\u003e"}
Four Wire Type Smoke Detectors System Sensor DSC
System Sensor 4WTA-B Four Wire Smoke Detector With Built-In 135 Degree Fixed Heat Sensor & Sounder
$74.95
System Sensor 4WTA-B Four Wire Smoke Detector With Built-In 135 Degree Fixed Heat Sensor & Sounder 4-wire type smoke detectors are compatible with all alarm systems, unlike the less popular 2-wire type. This model is the same as the 4wt-b model except it has a built-in sounder as well. We're often asked which type we recommend, 2-wire type or 4-wire type. If you are going to have only a few and they will all be on one level, we recommend 2 wire types. On the other hand, if you will have smoke detectors on more than one level and wish to label them individually, we then recommend the 4-wire type. Data SheetInstallation Sheet
System Sensor 4WTA-B Four Wire Smoke Detector With Built-In 135 Degree Fixed Heat Sensor & Sounder 4-wire type smoke detectors...
  • {"id":7037377989,"title":"System Sensor 4WTA-B Four Wire Smoke Detector With Built-In 135 Degree Fixed Heat Sensor \u0026 Sounder","handle":"system-sensor-4wta-b-four-wire-smoke-detector","description":"\u003ch2\u003eSystem Sensor 4WTA-B Four Wire Smoke Detector With Built-In 135 Degree Fixed Heat Sensor \u0026amp; Sounder\u003c\/h2\u003e\n\u003cp\u003e4-wire type smoke detectors are compatible with all alarm systems, unlike the less popular 2-wire type. This model is the same as the 4wt-b model except it has a built-in sounder as well. We're often asked which type we recommend, 2-wire type or 4-wire type. If you are going to have only a few and they will all be on one level, we recommend 2 wire types. On the other hand, if you will have smoke detectors on more than one level and wish to label them individually, we then recommend the 4-wire type.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1659\/9809\/files\/i3-Series_DataSheet_A05-0318.pdf?1140931643100688259\" title=\"i3 Series Smoke Data Sheet\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eData Sheet\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1659\/9809\/files\/i3_Thermal_Manual_I56-2170.pdf?1140931643100688259\" title=\"i3 Series Smoke Installtion Sheet\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstallation Sheet\u003c\/a\u003e\u003c\/p\u003e","published_at":"2016-10-20T04:30:00-04:00","created_at":"2017-01-23T07:20:09-05:00","vendor":"System Sensor","type":"Four Wire Smoke Detectors","tags":["4WTA-B","4WTAB","Els PW 22611","Four Wire Smoke Detectors","Hardwired Sensors","Smoke Detectors","System Sensor"],"price":7495,"price_min":7495,"price_max":7495,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":24526618117,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"Sys 4WTA-B","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"System Sensor 4WTA-B Four Wire Smoke Detector With Built-In 135 Degree Fixed Heat Sensor \u0026 Sounder","public_title":null,"options":["Default Title"],"price":7495,"weight":454,"compare_at_price":null,"inventory_quantity":24,"inventory_management":"shopify","inventory_policy":"continue","barcode":"Sys 4WTA-B","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/www.alarmsystemstore.com\/cdn\/shop\/products\/system-sensor-4wta-b-four-wire-smoke-detector-with-built-in-135-degree-fixed-heat-sensor-sounder-178558.jpg?v=1595526296","\/\/www.alarmsystemstore.com\/cdn\/shop\/products\/system-sensor-4wta-b-four-wire-smoke-detector-with-built-in-135-degree-fixed-heat-sensor-sounder-244770.jpg?v=1595526296","\/\/www.alarmsystemstore.com\/cdn\/shop\/products\/system-sensor-4wta-b-four-wire-smoke-detector-with-built-in-135-degree-fixed-heat-sensor-sounder-724651.jpg?v=1595526296"],"featured_image":"\/\/www.alarmsystemstore.com\/cdn\/shop\/products\/system-sensor-4wta-b-four-wire-smoke-detector-with-built-in-135-degree-fixed-heat-sensor-sounder-178558.jpg?v=1595526296","options":["Title"],"media":[{"alt":"System Sensor 4WTA-B Four Wire Smoke Detector With Built-In 135 Degree Fixed Heat Sensor \u0026 Sounder - AlarmSystemStore.com","id":7363168960614,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1024,"width":1024,"src":"\/\/www.alarmsystemstore.com\/cdn\/shop\/products\/system-sensor-4wta-b-four-wire-smoke-detector-with-built-in-135-degree-fixed-heat-sensor-sounder-178558.jpg?v=1595526296"},"aspect_ratio":1.0,"height":1024,"media_type":"image","src":"\/\/www.alarmsystemstore.com\/cdn\/shop\/products\/system-sensor-4wta-b-four-wire-smoke-detector-with-built-in-135-degree-fixed-heat-sensor-sounder-178558.jpg?v=1595526296","width":1024},{"alt":"System Sensor 4WTA-B Four Wire Smoke Detector With Built-In 135 Degree Fixed Heat Sensor \u0026 Sounder - AlarmSystemStore.com","id":7363168993382,"position":2,"preview_image":{"aspect_ratio":1.0,"height":1024,"width":1024,"src":"\/\/www.alarmsystemstore.com\/cdn\/shop\/products\/system-sensor-4wta-b-four-wire-smoke-detector-with-built-in-135-degree-fixed-heat-sensor-sounder-244770.jpg?v=1595526296"},"aspect_ratio":1.0,"height":1024,"media_type":"image","src":"\/\/www.alarmsystemstore.com\/cdn\/shop\/products\/system-sensor-4wta-b-four-wire-smoke-detector-with-built-in-135-degree-fixed-heat-sensor-sounder-244770.jpg?v=1595526296","width":1024},{"alt":"System Sensor 4WTA-B Four Wire Smoke Detector With Built-In 135 Degree Fixed Heat Sensor \u0026 Sounder - AlarmSystemStore.com","id":7363169058918,"position":3,"preview_image":{"aspect_ratio":1.0,"height":1024,"width":1024,"src":"\/\/www.alarmsystemstore.com\/cdn\/shop\/products\/system-sensor-4wta-b-four-wire-smoke-detector-with-built-in-135-degree-fixed-heat-sensor-sounder-724651.jpg?v=1595526296"},"aspect_ratio":1.0,"height":1024,"media_type":"image","src":"\/\/www.alarmsystemstore.com\/cdn\/shop\/products\/system-sensor-4wta-b-four-wire-smoke-detector-with-built-in-135-degree-fixed-heat-sensor-sounder-724651.jpg?v=1595526296","width":1024}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch2\u003eSystem Sensor 4WTA-B Four Wire Smoke Detector With Built-In 135 Degree Fixed Heat Sensor \u0026amp; Sounder\u003c\/h2\u003e\n\u003cp\u003e4-wire type smoke detectors are compatible with all alarm systems, unlike the less popular 2-wire type. This model is the same as the 4wt-b model except it has a built-in sounder as well. We're often asked which type we recommend, 2-wire type or 4-wire type. If you are going to have only a few and they will all be on one level, we recommend 2 wire types. On the other hand, if you will have smoke detectors on more than one level and wish to label them individually, we then recommend the 4-wire type.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1659\/9809\/files\/i3-Series_DataSheet_A05-0318.pdf?1140931643100688259\" title=\"i3 Series Smoke Data Sheet\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eData Sheet\u003c\/a\u003e\u003cbr\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1659\/9809\/files\/i3_Thermal_Manual_I56-2170.pdf?1140931643100688259\" title=\"i3 Series Smoke Installtion Sheet\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eInstallation Sheet\u003c\/a\u003e\u003c\/p\u003e"}