DFRobot Gravity Industrial Grade Analog ORP Sensor Meter PRO - 5.08mm Pluggable Connector

The sensor operates on a standard 5V DC supply. It provides a linear analog output signal ranging from 0.5V to 4.5V, corresponding directly to its full measurement range of -2000mV to +2000mV ORP. The integrated signal conditioner includes a stable voltage reference to ensure accuracy is not compromised by minor fluctuations in the supply voltage.

Connection is facilitated via the industrial 5.08mm pitch pluggable screw terminal block. The output signal wire (0.5V–4.5V) should be connected to an analog input pin on your microcontroller (e.g., Arduino). Ensure the sensor's ground is shared with your controller. The included waterproof connectors and mounting hardware allow for secure physical and electrical integration into a monitoring enclosure or panel.

ORP (Oxidation-Reduction Potential) measures the tendency of a solution to either gain or lose electrons, indicating its oxidizing or reducing capacity. It is a key water quality parameter. Typical applications include monitoring disinfection efficacy in pools and water treatment plants, assessing redox conditions in aquaculture tanks, and conducting environmental studies on natural water bodies.

The industrial-grade platinum indicator electrode is designed for long-term stability with minimal maintenance. Periodic cleaning may be required if fouling occurs, following standard procedures for ORP electrodes. The robust construction allows for continuous 24-hour online monitoring, making it suitable for demanding industrial and environmental applications.