# Gravity: Digital Wireless Transmit Switch (433MHz)

**Type:** Product page · **SKU:** TEL0140 · **Brand:** [DFRobot](https://core-electronics.com.au/brands/dfrobot-australia)
**Page:** https://core-electronics.com.au/gravity-digital-wireless-transmit-switch-433mhz.html ([markdown](https://core-electronics.com.au/gravity-digital-wireless-transmit-switch-433mhz.html.md))

Wireless switch with strong penetrability and easy expansion...

## Pricing

- **Price:** $11.90 (inc GST) — $10.82 AUD, exc GST
- **Quantity discounts:** 6+ $10.27 (exc GST) · 12+ $9.85 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 2 today, and up to 200 more in 8–12 days.

## Description

When building a project that needs to transmit some simple signals wirelessly, have you been bothered by the any of the following problems: Bluetooth's cumbersome AT command configuration and high cost, Wifi's signal limitations and high power consumption, IR emission angle and inability to penetrate through the walls...

This Gravity: Digital Wireless Swtich might be just what you need! Based on 433Mhz RF communication technology, the module includes a transmitter and receiver and features the advantages of simple operation,strong penetration, and ultra-low standby power consumption. It is able to transmit digital signals and compatible with any controller that can read and write digital signals. These modules are used on a wide variety of applications that require wireless control, such as, remote control, wireless doorbell, wireless signal transmission, upgrading wired buttons to wireless buttons, etc.

**Note:** The transmitter module and the receiver module each ship with 1 Gravity: digital sensor cable by default. If you need more, please purchase separately (FIT0011)

433MHz is a certification-free frequency band in most parts of the world, please pay attention to local policies and laws and regulations when using it

**![](https://core-electronics.com.au/media/wysiwyg/product_images/Board-overview-TEL0142.jpg)**

**Board overview**

**Features**

- 15 button states of the transmitter
- Pairing function for the receiver
- Support one-transmit and multiple-receive
- Support one-receive and multiple-transmit
- Multiple working modes: inching, latching, self-locking, and interlocking
 
**Applications**

- Remote control
- Wireless doorbell
- Wireless signal transmission
- Upgrading wired buttons to wireless buttons
 
**Specification**

- Working voltage: 3.3~5.0V DC
- Stable transmission distance: 15M indoor
- Transmitter emission current: 10mA@5V
- Transmitter standby current: <10uA@5V
- Receiver emission current: 6mA@5V
- Receiver standby current: 3mA@5V
- Input signal: digital
- Number of interfaces: 4
- Working frequency: 433Mhz
- Transmitter size: 47x32mm
- Receiver size :37x32mm
- Mounting hole size: inner diameter 3.1mm/outer diameter 6mm
 
**Documents**

- [Product wiki](https://wiki.dfrobot.com/Gravity_Digital_Wireless_Switch_SKU_TEL0140_TEL0142)
- [Schematic](https://core-electronics.com.au/attachments/localcontent/343d58740d9aafcaf2ad42e83b3bbaa0_55866e2e72e.pdf)
- [Dimensions](https://core-electronics.com.au/attachments/localcontent/1af09957f25f1cd322fa140f740fae72_820384e19b0.pdf)
 
**Parts List**

- Gravity: Digital Wireless Switch x1
- Gravity: Digital Sensor Cable x1

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/i/m/image_3525.jpg)