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FIT0453 GSM Antenna with Magnetic Base (3m)
US$6.29
This is a GSM antenna with SMA connector. Its magnetic base can be easily adsorbed on the surface of ferrous material. The working frequency 900-1800 MHz meets the most requirements of GSM application. This Antenna extension cable uses 174 pure copper material, which has less impedance than the other cable. The antenna signal gain could arrive 2.5dBi.
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FIT0454 Built-in Spring GSM Antenna
US$5.59
This is a small built-in spring GSM antenna with IPX connector. Its working frequency is 900/1800 MHz, which meets most requirements of GSM applications. Its very compact size makes it easy to carry and use.
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WIFI-SONOFF Sonoff RF- WiFi Wireless Smart Switch With RFreceiver For Smart Home
US$19.24
Sonoff RF switch is a Sonoff version with a 433MHz RF receiver module inside. This wireless switch can be used together with the RF remote controller, which enables you to control appliances in indoor environment. The remote control switch allows users remote turn on/off connected appliances via app EWeLink from anywhere in the world. Sonoff wireless power switch is an affordable device that provides users with smart home control. It is a wireless electrical switch that can connect to a wide range of appliances. Sonoff wireless switch transmits data to a cloud platform through the WiFi Router, which enables users to remotely control all the connected appliances, via the APP eWeLink. The cloud server of Sonoff RF is Amazon AWS global server. Sonoff RF switch makes all home appliances smart. As long as the mobile phone has 2G/3G/4G/WiFi network, users can remotely control the appliances by turning them on off from anywhere at any time. Another feature available is to set timing schedules for the appliances, which can include scheduled/countdown/loop timers, and can thus, help users maintain an easy life.
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WRL-13002 Telescopic Antenna SMA - 75 MHz to 1 GHz (ANT500)
US$73.29
This ANT500 is a telescopic antenna designed for operation from 75 MHz to 1 GHz with a total length that is configurable from 20 cm to 88 cm long. Each ANT500 is constructed of stainless steel and features an SMA male connector, rotating shaft, and adjustable elbow.
Delivery within 2-3 weeks
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WRL-13001 HackRF One
US$646.07
This is the HackRF One, a Software Defined Radio (SDR) peripheral capable of transmission or reception of radio signals from 1MHz to 6GHz. Designed to enable test and development of modern and next generation radio technologies, HackRF One is an open source hardware platform that can be used as a USB peripheral or programmed for stand-alone operation.
Delivery within 2-3 weeks
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1096-ADA Simple RF M4 Receiver - 315MHz Momentary Type
US$7.62
These Simple RF receivers are the easiest way possible to add wireless control, painlessly! There's no programming, configuring or addressing - simply power the receiver with 5-10VDC and press the buttons on our matching RF keyfob remote. When the A button is pressed, it activates the first pin, when the B button is pressed, it activates the second one, and so forth for all four buttons. There's no microcontroller required, its just a simple one-to-one link.
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1095-ADA Keyfob 4-Button RF Remote Control - 315MHz
US$12.17
This 4-button keyfob remote goes with our three basic 315MHz RF receiver modules. It will work with all of them, sending out one of four commands that match up with the four outputs. Its small and light weight and will work up to 25 feet away depending on line-of-sight and obstructions. Since this is just a transmitter, if you have multiple receivers, it will turn all of them on and off at the same time (there is no sub-addressing).
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VK2828U7G5LF TTL Ublox GPS module with antenna
US$23.79
This board is embedding GPS module and antenna in a small foot-print module. You can wire it ton an Arduino or Raspberry Pi to retrieve geographic coordinates (latitude and longitude, altitude), speed, heading and GMT time. Just plug it in and USB to Serial Adapter, open a Serial Monitor, and it’ll start sending coordinates to the computer!
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MOD-AMP Bluetooth 4.0 Audio Digital 25W + 25W Amplifier Based on TDA7492P
US$31.80
This device is a simple audio amplifier that is based on the TDA7492P IC and uses high quality surface mount components. Plug in anywhere from 8 to 25 volts in the DC Jack, use your android, Iphone or Computer to pair with this device like any other Bluetooth device and play music anywhere within 20 meters! No software downloading or uploading required. Connect the left and right speaker to the green terminal blocks and enjoy high quality audio from this credit card size device.
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WL-310 433 MHz Wireless Transmitter and Receiver Module (One Way Communication)
US$6.99
This unit contains a single IC chip with three pins as the transmitter and a single four pin IC for the receiver. Plug the transmitter to a microcontroller and the receiver to another, send long distance code or commands. This unit can send information through walls with a range of less than 200m. You are required to use a small 22 – 24 AWG cable and insert the stripped cable into the through-hole labelled ant to increase the range.
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WL-200 NRF24L01 2.4Ghz transceiver module with antenna
US$6.99
Small generic transceiver module in the 2.4Ghz range with low power consumption, GFSK modulation and on-board antenna, in a small package communicating over serial. This module is useful for transmitting and receiving data for microcontroller based projects. 
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WL-300 315MHz Wireless Transmitter Module and Receiver Module (One way Communication)
US$10.36
This unit contains a single IC chip with three pins as the transmitter and a single four pin IC for receiver. Plug one end to a microcontroller and the other to another, send long distance code or commands. This unit can send information through walls with a range of less than 200m.
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WAVE-114 Bluetooth 4.0 Motherboard
US$13.99

BLE400 Features: Onboard battery holder, multi power supplies are available. All the IOs are accessible for easy expansion. Integrates CP2102 for debugging. LEDs and user keys, compatible with other official boards, easy to use.

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EF02012 XBee Shield with Logic Level Converter SHD08
US$12.53
Features: With Logic Level Converter (3.3V to 5V or 1.8V to 5V or 1.8V to 3.3V). With CC1101 module connecter. Provide maximal 800mA under 3.3V. 4 indicator LED ( RSSI, ASS, Din, Dout) for XBee. Switchable of communication with FTDI-USB /Base board. Full 2.54mm break out for XBee. With wireless program hardware interfaces. Reset button for base board. Stackable interfaces.
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ARD-HM-11 Bluetooth 4.0 Board
US$17.05
This device is great for surface mount projects that require Bluetooth connectivity or by creating your own expansion board to install in your projects using pin headers. Support serial communication, ultra-low standby power consumption and is packed in a small package.
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