---
title: What the difference between the PIXIE STCBT timer and PIXIE STS350BT smart timer switch?
description: "There are differences between STC/BT (Smart Timer Controller) and STS350BT (Smart Timer Switch). ![](https://pixiepartners.com.au/wp-content/uploads/2020/09/SAL-PIXIE-timer-differences.png)   ## Smart Timer Switch - STS350BT The STS350BT is a PIXIE master device which is designed to directly control the load to which it is…"
url: "https://pixiepartners.com.au/support-docs/what-the-difference-between-the-pixie-stcbt-timer-and-pixie-sts350bt-smart-timer-switch/"
updated: "2022-07-04"
category: Installation
---

# What the difference between the PIXIE STCBT timer and PIXIE STS350BT smart timer switch?

There are differences between STC/BT (Smart Timer Controller) and STS350BT (Smart Timer Switch).

![](https://pixiepartners.com.au/wp-content/uploads/2020/09/SAL-PIXIE-timer-differences.png)

 

## Smart Timer Switch - STS350BT

The STS350BT is a PIXIE master device which is designed to directly control the load to which it is connected - like an exhaust fan or heated towel rail.

The STS350BT provides BOTH the ability to Schedule AND the ability to operate Time-outs with a duration of between 1 minute to 24 hours.

> [Does PIXIE work with Heated Towel Rails?](https://pixiepartners.com.au/support-docs/does-pixie-work-with-heated-towel-rails/)

[“Does PIXIE work with Heated Towel Rails?” — PIXIE Partners](https://pixiepartners.com.au/support-docs/does-pixie-work-with-heated-towel-rails/embed/#?secret=ZN1SaKMT8a#?secret=o5z0iGfmS8)

 

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## Smart Timer Controller - STC/BT

The STC/BT is capable of controlling PIXIE Master devices OR PIXIE Groups - where a PIXIE group is a collection of PIXIE devices.

Its is a secondary device that does NOT control any loads directly.

Instead is used to operate PIXIE devices without timing capability from the wall.

For example, a home may have PIXIE switches and dimmers installed for outside lighting.

The home owner would like to be able to press a single button on the wall to activate all of their outside lighting AND know that within 30 minutes ( the duration of the time-out set when setting the device up), all of the outside lighting will turn off.

 

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