Doric Instruments 1000 Pro Series Digital Panel meters are suitable - Manual (Page 18)

17
Alarm and Excitation Option Wiring
Blade terminals accessible at the back of the instrument provide
connections to the alarm option. Female connectors are supplied to
wire the alarm option into your system. Excitation power supply is
standard with the dual alarm.
1 2 5 3 4 6 7 8
REAR VIEW
ALM2(HIGH)
N.O. RELAY
CONTACT ALM1(LOW)
N.O. RELAY
CONTACT
HOT
NEUTRAL
TRANSDUCER
EXCITATION -
+
INPUT
POWER