Arizona’s Trusted Partner for Gas Detection and Life Safety Systems.

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Global Systems United
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REQUEST A QUOTE
FAQ
Testimonials
Careers
Online Store
Resources
About
Our Products
Contact Us
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Testimonials

Trusted by Industry Leaders 


We’re proud to be the trusted partner for fire alarm and COβ‚‚ monitoring solutions across Arizona. Hear directly from clients who have experienced our commitment to safety, compliance, and exceptional service. 




Testimonial Letter from NuCO2 Praising CO2 Monitoring Support 

 Recommendation from Fox Theater for COβ‚‚ Installation Support 

 Keyser’s Client Review on System Design and Jurisdiction Approval 

 Testimonial Letter from Two Brothers Artisan Brewing, Praising GSU’s COβ‚‚ Sensor System Design, Permitting, and Inspection Process 

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Life Safety Systems | ROC #297544 – CR67

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