The Dwyer Instruments 3002-C Photohelic Pressure Switch & Gauge combines a pressure gauge with a Photohelic switch in a single compact unit. It is specified for 25 PSIG, providing a defined pressure point for monitoring and triggering a control circuit. The listing references 117 VAC, indicating the electrical supply associated with this device. Model 3002-C is the designated configuration for this photohelic switch-and-gauge assembly.
