System Sensor 2151T RAFA The KI-SB4

The KI-SB4

Security Grade 2

Products / items that have been used

with versions that include an AC transformer (such as the WT5500D)

The connections for the external power supply and the communication loop are isolated to prevent electrical interaction between them

System Sensor 2151T RAFA The KI-SB4Model 2151 (photoelectric sensor) and model 2151T (photoelectric sensor with thermal) can be used with a variety of adapter bases in several wiring configurations and voltages. Other features include: low current draw, stable performance in high air velocities, built in tamper resistant base design, remote LED option, removable cover and built in test switch.