SYSTEM SENSOR 4W-TAB 4-wire photoelectric i3 smoke detector with thermal sensor and built-in sounder

Detectors i3 Series of Sensor System

The smoke detectors i3 Series™ with siren and/or relay represent a significative technologic advance in conventional detection come with enriched features for a simple installation instantaneous inspection and intelligence to deny false alarms.

All detectors of the i3 series are equipped with algorithms of automatic compensation of sensibility by soiling and mathematic adjustment of curves. This algorithms minimize the incidence of false alarms originated by effects by short duration like electromagnetic induction and/or interference of radio frequency and effects of long duration like soiling. With the detectors are connected i3 of 2 wires to the maintenance module and loop test 2WMOD2 or a compatible panel with i3 protocol (i3 Ready™) this generate a remote signal of maintenance when a detector between in condition of cleaning and/or freeze fails when the environment’s temperature surrounds it with below 5 °C. To measure the level of sensibility of any detector i3 the inspection module SENSRDR is used with one that can visualize in a few seconds in numeric vale of sensibility expressed in percentage of foot obscuration.


• Photoelectric sensor
• Voltage: 12/24 Vdc
• Local audible alarm of 85 dB
• Fixed temperature sensor to 57.2 °C
• Current in passive state: 50 μA
• Current in Alarm: 130 mA
• Sensibility: 2.5%pie
• Service temperature: 0º to 37.8 ºC
• Humidity: 0 to 95% without condensation
• Dimensions: 134 x 51 mm

2024-10-22 13:25:51

Page: 5

4WTAB SYSTEM SENSOR 4-wire photoelectric i3 smoke detector with thermal sensor and built-in sounder 4W-TAB