Quest’s TELSEC® ESB2 monitoring & control system features secure communications and touch screen technology. When paired with the Model 400 HVAC Controller, the TELSEC ESB2 can control up to 16 HVACs in lead/lag formation. The TELSEC ESB2 is designed for manned and unmanned facilities, such as COs, Headends, Fiber Hubs, Huts, CEVs, and OTNs.

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