Is a double circuit with two sets of Normally Open (N/O) contacts. The second set of N/O contacts are used to activate a local ancillary function that includes elevator recall etc.

Is a double circuit with two sets of Normally Closed (N/C) contacts.

It's a double circuit with one set of Normally Open (N/O) contacts, and one set of Normally Closed (N/C) contacts.

This detector is suitable for use in areas where condensation or corrosion can have harmful effects on circuit wiring connected to standard terminals.

This unit is single circuit with normally open contact configuration.

Is a double circuit with two sets of Normally Open (N/O) contacts. The second set of N/O contacts are used to activate a local ancillary function that includes elevator recall etc.

Is a double circuit with two sets of Normally Closed (N/C) contacts.

It's a double circuit with one set of Normally Open (N/O) contacts, and one set of Normally Closed (N/C) contacts.

This detector is suitable for use in areas where condensation or corrosion can have harmful effects on circuit wiring connected to standard terminals.

This unit is single circuit with normally open contact configuration.

Is a double circuit with two sets of Normally Open (N/O) contacts. The second set of N/O contacts are used to activate a local ancillary function that includes elevator recall etc.

Is a double circuit with two sets of Normally Closed (N/C) contacts.

It's a double circuit with one set of Normally Open (N/O) contacts, and one set of Normally Closed (N/C) contacts.

This unit is single circuit with normally open contact configuration.

This unit contains two sets of N/O contacts.

Is a double circuit with two sets of Normally Open (N/O) contacts. The second set of N/O contacts are used to activate a local ancillary function that includes elevator recall etc.

Is a double circuit with two sets of Normally Closed (N/C) contacts.

It's a double circuit with one set of Normally Open (N/O) contacts, and one set of Normally Closed (N/C) contacts.

This detector is suitable for use in areas where condensation or corrosion can have harmful effects on circuit wiring connected to standard terminals.

Intelligent non-relay photoelectric smoke detector