Data before the second visit
Use an overnight record to focus the return visit without replacing field judgment.
- Question
- What should the technician know before returning to a difficult account?
- Record
- A dated playback of detections tied to the sensor placement log and the site floorplan.
- Boundary
- Playback guides inspection. It does not diagnose cause or replace the technician on site.
01
Start with the account question
Before placing sensors, name the unresolved question: activity after closing, movement above a ceiling, a recurring service area, or uncertainty after exclusion work. Placement should test that question.
02
Leave a readable layout
Label sensors A–H and mark their positions on the floorplan. A technician who did not place the equipment should still be able to understand the record the next morning.
- Position and orientation are recorded.
- The monitoring window is clear.
- Any placement change is noted before comparison.
03
Prepare the return visit from the playback
Review the earliest, latest, and most repeated positions. Convert those observations into a short inspection plan: which void, penetration, appliance line, threshold, or structural edge needs to be checked first.
04
Show what the record supports
Use the floorplan to explain where activity concentrated and why the next inspection is focused there. Keep the customer relationship with the operator and keep the wording inside the evidence: detected, concentrated, changed, or still needs verification.
Continue the investigation
Related field notes
See the method in context