The CO2 Regulator Electromagnetic Double Meter is a precision device featuring dual pressure gauges and an electromagnetic solenoid valve. This professional-grade regulator is designed for accurate CO2 pressure control in aquarium systems. Key features: • Dual pressure gauges for monitoring both high and low pressure • 12V DC electromagnetic solenoid valve • Built-in bubble counter with check valve • Durable aluminum alloy construction • Compatible with standard CO2 tanks and tubing • Fine-tuning adjustment capability • Includes power adapter The regulator comes with a UK-style power plug for the solenoid valve operation. The clear bubble counter allows visual monitoring of CO2 flow rate. The device features precision engineering for reliable performance and long-term durability. Suitable for both professional and hobby aquarium setups requiring precise CO2 regulation.