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3DBi Magnetic Mount GSM Antenna
High-gain 3dBi magnetic mount GSM antenna with strong base for stable installation and improved signal reception—ideal for GSM modules and tracking systems.
The 3dBi Magnetic Mount GSM Antenna is a high-performance external antenna designed to enhance signal reception and transmission for GSM communication devices. With a strong magnetic base, it can be securely mounted on metal surfaces, ensuring stable placement and optimal signal positioning.
Offering 3dBi gain, this antenna significantly improves signal strength and network reliability compared to standard antennas, making it ideal for areas with weak GSM coverage. It supports common GSM frequency bands and is suitable for use with GSM/GPRS modules, vehicle tracking systems, IoT devices, alarms, and industrial communication equipment.
The antenna comes with a durable cable and connector, allowing flexible installation and easy integration with GSM modems and development boards. Its rugged outdoor-ready design makes it perfect for both mobile and fixed applications.

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Text to Speech TTL Module (Serial to Speech)
-  Single row 0.1″ header for easy connection to a host system
- Power requirements: +5 VDC
- 30 mA idle
- 46-220 mA active (depending on speech parameters and output load)
- Â Communication: Asynchronous 9600 bps serial (8N1)
- Dimensions: 1.25″x1.5″x0.37″
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Text support rate is better
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 Interface operation is simpler
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5V single power supply.
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Output directly connected to the speaker, can drive 4 ohms 3W / 8 ohm 2W speakers
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Busy status output, can be connected to the microcontroller IO or indicator light, no need to be left floating.
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 Voice effect optimization
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 Module miniaturization and easy integration
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Dimension: 33*27.5mm
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With mounting holes

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