Products ---> Talk / Back
		EXP - TBA Explosion Proof Station   EXP-TBA provides easy to operate paging with the versatility of a hands free slave speaker. Total system flexibility in order to adapt to station location, with the use of either internal microphone & faceplate PTT switch or master speaker as microphone & remote PTT switch. 120 V AC / 240 V AC / 24 V AC / 24 V DC		Talk / Back   Paging with Talk/Back capability allows users to maintain hands-free communication during critical operations. Guardian’s Talk/Back systems meet this demand with standard plus explosion proof versions. Master to single slave or multiple slave configurations are available. From drilling operations right through to specialized applications, Guardian’s Talk/Back systems can be tailored for specific functionality.
		TBA Multi-Channel Amplifier Series   TBA Amplifiers provide easy to operate paging with the versatility of a hands free slave speaker. • Only one amplifier required for master/slave(s) communication TBA20 • 2 Channel: Master / Slave • Hands free slave TBA21 • 2 Channel: Master / Slave • Push to Talk Slave TBA30 • 3 Channel: Master / 2 Slaves • Hands free primary slave TBA31 • 3 Channel: Master / 2 Slaves • Push to Talk Primary Slave TBA40 • 4 Channel: Master / 3 Slaves • Hands free primary slave TBA41 • 4 Channel: Master / 3 Slaves • Push to Talk Primary Slave TBA50 • 5 Channel: Master / 4 Slaves • Hands free primary slave

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