O-Level Chemistry Instrument & Datalogger Skills

TL;DR
The 2026 SEAB syllabus reminds Centres that candidates should be familiar with data-loggers. Be ready for Paper 3 scenarios where a data-logger captures time-series data instead of repeated manual readings.
When your plan uses a sensor, state calibration, sampling interval, and how you will tabulate/graph the logged data; MMO/PDO hinges on disciplined setup and clear presentation.
ACE evaluation can quantify uncertainty, compare logger vs. manual readings where relevant, and propose improvements such as insulation or probe shielding.

Loop Back to the Experiment Hub

Anchor these sensor drills to the broader O-Level Chemistry Experiments hub so every Paper 3 routine-from calorimetry to electrolysis-shares the same data quality language.

1 | Instrumentation in the syllabus

• SEAB highlights that “Candidates are expected to be familiar with the use of data-loggers” when describing Paper 3 practical techniques (SEAB 2026 syllabus, p. 27).
• Assessment objectives still apply: Planning (variables, safety, data usage), MMO (correct handling), PDO (presentation accuracy), and ACE (analysis/evaluation) (