Rain Bird FS400P 4″ PVC Tee Flow Sensor (M80107)

Rain Bird FS400P 4-Inch PVC Tee Flow Sensor

The Rain Bird FS400P (MFG# M80107) is the 4-inch Schedule 80 PVC slip-tee impeller sensor for commercial irrigation flow monitoring. It reports 40–500 GPM to ESP-LXMEF, ESP-LXD, ESP-ME3, ESP-2WIRE, and IQ central control.

Key Specifications & Features

• SKU: FS400P
• MFG#: M80107
• Brand: Rain Bird
• Size: 4" (110 mm) PVC tee, socket ends
• Flow range: 40–500 GPM (150–1,900 L/min)
• Pressure: Up to 100 psi
• Design: Six-blade impeller, removable PPS insert
• Leads: 18 AWG UF, 48 in, red/black
• Dimensions: 7.38" W × 7.83" H × 5.38" D

Compatible Controllers / Systems

FS400P works with Rain Bird ESP-LXMEF, ESP-LXD, IQ, ESP-ME3, and ESP-2WIRE when the controller is set for the Rain Bird FS400P K-factor and offset. Pair with an IVM-SEN on LX-IVM 2-wire systems.

Frequently Asked Questions

What pipe size is Rain Bird FS400P?
It is a 4-inch Schedule 80 PVC slip tee. Use FS200P or FS300P for 2" and 3" mains.

What flow range does FS400P cover?
40 to 500 gallons per minute, up to 100 psi and 140°F liquid temperature.

Will FS400P work with ESP-ME3?
Yes. Rain Bird lists FS400P / M80107 on the ESP-ME3 and ESP-2WIRE compatible flow-sensor chart.

Is M80107 the same as FS400P?
Yes. M80107 is the Rain Bird manufacturing number for the FS400P 4" PVC tee sensor.