Multi- RAM RDA III-A Combustible Gas Constant Monitor Gas detection without the need for batteries. The Multi-RAM RDA IIIA, commonly called the RDA, is a remote atmosphere monitor designed for continuous use in confined space. The unique 2 alarm design allow the operator to be alerted to gas build ups as well as those above the manhole or outside the confined area. The unique 115VAC power requirement is designed to be used with power generators commonly used at manhole construction areas. The RDA is certified for use in Class 1, Division 1, Groups A, B, C, D hazardous environments. Key Benefits: Easy field use Proven rugged design Weather resistant Can monitor many combustible gases

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