Price 101 To 500 Dollars

Zygo 20

Description: 

DISCONTINUED. (Verified 5/2001) RETAINED IN DATABASE FOR REFERENCE. Zygo Model 20 is a two-choice communication training aid. The Model 20 is a small electronic box with two large buttons that light up when pressed.

Who Makes It: 

Zygo 21S

Description: 

DISCONTINUED. (Verified 5/2001) RETAINED IN DATABASE FOR REFERENCE. The Zygo Model 21S is a two-choice communication training aid. The system is a set of two lights, one red and one amber, each in its own housing. The lights light up when pressed.

Who Makes It: 

Zygo Model 4 Emergency Call Alarm

Description: 

DISCONTINUED. (Verified 04/2009) RETAINED IN DATABASE FOR REFERENCE. Zygo Model 4 Emergency Call Alarm is a signalling device that emits a piercing, fast- pulse, intermittent tone. A single switch (not included) is used to activate the alarm.

Who Makes It: 

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