JIYI Flow Sensor for K++ V2 & K3A Pro Agriculture Drones

The JIYI flow sensor (flow meter) fits in the spray line of an agricultural drone and reports real-time liquid flow to a JIYI K++ V2 or K3A Pro flight controller, so the system can track how much liquid is actually leaving the nozzles.

Key features

• Measures flow from 0.2 to 6 L/min with a pulse output proportional to flow (±10%)
• Holds 0.35 MPa without leaks, cracks, deformation or loosening
• Low draw: DC 4.5-18 V at no more than 10 mA
• Simple 3-wire connection (power, ground, signal)
• Stays within ±5% accuracy after 72 hours at 80 °C, with over 100 MΩ insulation resistance

Specifications

• Flow range: 0.2-6 L/min
• Pulse formula: F (Hz) = 25 x Q (L/min), ±10%
• Pulse duty cycle: 50% ±10%
• Pulse levels: high 4.5 V or more, low 0.5 V or less (at 5 V supply)
• Operating voltage: DC 4.5-18 V
• Max current: 10 mA
• Pressure rating: 0.35 MPa
• Working medium: clean water, up to 60 °C
• Insulation resistance: over 100 MΩ
• Dielectric strength: AC 500 V, 50 Hz
• Weight: 34 g

Install it between the pump and the nozzles, then check the reported flow against a timed, measured output before the first job. The sensor is rated for clean water, so flush the spray line with clean water after each spraying session.