For my sensor walk I simply had to walk around my house to find quite a few. The three I’ve documented are the smoke detectors, motion sensor, and heater. The smoke detectors do what they say and trigger the fire alarm if too much smoke is detected. The motion sensor is part of our alarm system and detects movement when we are out of the house and triggers the alarm. Finally, the heater has a sensor to allow for it to judge he temperature of the room and adjusts itself accordingly.