Sensaphone 1800 - Manual (Page 35)

Chapter 4: Zone Programming
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3. Press the corresponding Zone key (1–8).
The 1800 will say “Enter Mode.”
4. Press the key which corresponds to the type of Zone according to
the table below:
1: NC Dry Contact
2: NO Dry Contact
3: 10K Thermistor (temperature sensor)
4: 4–20mA
5: Not applicable
6: 2.8K Thermistor (temperature sensor)
5. Press ENTER.