For GT-900 / M3 vital sign monitorsStep 1 Make sure that it is adjusted to the parameter and that the right cuff size is used for your current patient. Step 2 When testing adults, make sure the parameter reads ADU, when testing pediatrics make sure it is on PEDS. None of the solutions work as intended? Please contact us with any additional questions Service Request Form Step 1 of 2 50% Name* First Last Company Name* Email* Phone* Service Request Type*Repair RequestTroubleShootingRMA RequestWarranty IssueProduct Serial Number* Sales Order Or Invoice Number* Describe Your Issue* Δ