--- title: What is the Frequency of the SiXCT Sensor description: What is the Frequency of the SiXCT Sensor --- [Skip to content](https://support.geoarm.com/honeywell/sixct/whatisthefrequencyofthesixctsensor#main-content) English Show submenu for translations ![geoarm-by-alarmclub-logo-2024-transparent.png\]](https://support.geoarm.com/hs-fs/hubfs/geoarm-by-alarmclub-logo-2024-transparent.png?height=50&name=geoarm-by-alarmclub-logo-2024-transparent.png) Open main navigation Close main navigation - English Show submenu for translations - Visit GeoArm.com Visit GeoArm.com Hello. How can we help? - There are no suggestions because the search field is empty. 1. [Support Center](https://support.geoarm.com/?hsLang=en) 2. [Honeywell](https://support.geoarm.com/honeywell?hsLang=en) 3. [SixCT](https://support.geoarm.com/honeywell?hsLang=en#sixct) # What is the Frequency of the SiXCT Sensor The Honeywell SiXCT encrypted door/window sensor works on the 2.4 GHz frequency and is designed this way to not interfere with other wireless frequency ranges in your home or business. The SiXCT 2.4 GHz frequency has been developed to communicate bi-directional signals to and from the Honeywell Lyric Controller. ![geoarm-logo-by-alarmclub-2021-transparent](https://support.geoarm.com/hs-fs/hubfs/geoarm-logo-by-alarmclub-2021-transparent.png?width=688&height=217&name=geoarm-logo-by-alarmclub-2021-transparent.png)   - [GeoArm](https://support.geoarm.com/geoarm?hsLang=en#main-content) - [FAQ](https://support.geoarm.com/geoarm?hsLang=en#faq) - [Update Credit Card](https://support.geoarm.com/geoarm?hsLang=en#update-credit-card) - [Geo-CT](https://support.geoarm.com/geoarm?hsLang=en#geo-ct) - [Geo-CTR](https://support.geoarm.com/geoarm?hsLang=en#geo-ctr) - [GeoAlarm App](https://support.geoarm.com/geoarm?hsLang=en#geoalarm-app) - [GeoAlarm](https://support.geoarm.com/geoalarm?hsLang=en) - [2GIG](https://support.geoarm.com/2gig?hsLang=en#main-content) - [Edge](https://support.geoarm.com/2gig?hsLang=en#edge) - [Gc2e](https://support.geoarm.com/2gig?hsLang=en#gc2e) - [2gig-345fob](https://support.geoarm.com/2gig?hsLang=en#2gig-345fob) - 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