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The FP111, FP211 and FP311 Flow Probes are highly accurate water velocity instruments for measuring flows in open channels and partially filled pipes. The water velocity probe consists of a protected water turbo prop positive displacement sensor coupled with an expandable probe handle ending in a digital readout display. The water flow meter incorporates true velocity averaging for the most accurate flow measurements.

Features
• Records 30 data sets, and readings are in feet or meters per second
• Telescoping handles ranging from 3 feet to 14 feet
• Rain-proof digital computer and display with 5-year shelf life
• Light weight, rugged and reliable 

Applications
• Storm-water runoff studies
• Sewer flow measurements
• Measuring flows in rivers and streams
• Monitoring water velocity in ditches and canals

ModelFP111FP211FP311
Range0.3 - 19.9 FPS (0.1 - 6.1 MPS) 5.5 to 14 ft2.5 to 5.5 ft
Accuracy0.1 FPS3 lbs2.8 lbs
AveragingTrue digital running average, updated once per second
DisplayLCD, Glare, and UV Protected 
Control4 button
Datalogger30 sets, MIN, MAX, and AVG
FeaturesTimer, Low battery warning
Sensor TypeProtected Turbo-Prop propeller with magnetic pickup
Instrument Weight2 lbs (0.9 kg)3 lbs (1.4 kg) 2.8 lbs (1.3 kg)
Shipping Weight13 lbs (5.9 kg)23 lbs (10.4 kg)19 lbs (8.6 kg)
Expandable Length3.7 to 6 ft (1.1 to 1.8 m)5.5 to 14 ft (1.7 to 4.3 m)2.5 to 5.5 ft (0.76)
MaterialsProbe: PVC and anodized aluminum with stainless steel water bearing Computer: ABS/Polycarbonate housing with polyester overlay
PowerInternal Lithium Battery, approx. 5 years life with typical use, non-replaceable
Auto ShutoffAfter 5 minutes of inactivity
Operating Temperature-4 °F to 158 °F (-20 °C to 70 °C)
Storage Temperature-22 °F to 176 °F (-30 °C to 80 °C)
Carrying CaseThe Flow Probe is shipped in a carrying case
CertificatesCE
Part NumberDescriptionModelIncludes
GW-BA11003.7 to 6 ft. HandleFP111Carrying Case
GW-BB11005.5 to 15 ft. HandleFP211Carrying Case
GW-BC11002.5 to 5.5 ft. Handle Piece PoleFP311Carrying Case
GW-BB11105 to 14 ft. Probe With Swivel HeadFP211-SCarrying Case
GW-BA11103 to 6 ft. With Swivel HeadFP111-SCarrying Case

*Please note that Swoffer does not supply the cable, reels or weights required for operation

Model Item Quantity Unit Price Line Total
FP111 - Flow Probes – FP111, FP211 and FP311 FP111 - Flow Probes – FP111, FP211 and FP311
$ 0.00
FP211 - Flow Probes – FP111, FP211 and FP311 FP211 - Flow Probes – FP111, FP211 and FP311
$ 0.00
FP311 - Flow Probes – FP111, FP211 and FP311 FP311 - Flow Probes – FP111, FP211 and FP311
$ 0.00
5 to 14 ft. Probe With Swivel Head - Flow Probes – FP111, FP211 and FP311 5 to 14 ft. Probe With Swivel Head - Flow Probes – FP111, FP211 and FP311
$ 0.00
3 to 6 ft. With Swivel Head - Flow Probes – FP111, FP211 and FP311 3 to 6 ft. With Swivel Head - Flow Probes – FP111, FP211 and FP311
$ 0.00
$ 0.00