Abstract: Develops a daily measure of job satisfaction in the operating room (OR) setting in the form of a tool called the Morale-o-Meter. Trials and evaluates the tool between 2018-2019, inviting all OR staff to participate using the tool to measure their job satisfaction once each shift. Follows up the trial with an online feedback survey. Proves that overall job satisfaction is positively related to daily job satisfaction and affective commitment, and negatively related to emotional exhaustion. Suggests the Morale-o-Meter has the potential to increase the voice of OR nurses.