Master E
New User
- Location
- Irvington NJ
- Occupation
- Electrical Contractor
On a interconnected 120 volt smoke alarms, when measuring the yellow or red signal wires for voltage when activated, the voltage is
9 VDC where do you put the black lead if the return is AC on the neutral.
9 VDC where do you put the black lead if the return is AC on the neutral.
