FM350 Technical Specification

Updated February 14, 2026 2 min read

 Technical Specification FM350 Powered by UltraSonix™

Overview

The WaterCompass FM350 powered by UltraSonix is an easy to install, wireless, non-invasive flow monitor. The ultrasonic technology allows for accurate water measurement without cutting into pipes. The FM350 uses cutting edge, low power LTE cellular to transmit usage data to the cloud. With no moving parts, the meter is maintenance free and retains accuracy for the life of the flow monitor.

Technical Information

 

Flow Monitor Calibration

The FM350 device is configured and calibrated to match the specific pipe size and material of the installation site. HydroPoint ensures precise calibration and rigorous testing of each flow monitor in a dedicated flow lab, equipped with a diverse range of pipe sizes and materials.

Pipe Size	½” – 3”


Pipe Materials	Copper - L
	Copper - M
	Schedule 40 CPVC
	Schedule 40 PVC
	PEX
COMING SOON

Pipe Configurations in development	Galvanized
	Copper M
	Schedule 80 CPVC
	Schedule 80 PVC

Supported Pipes                                                                 Physical Dimensions

 

FM350 Size

H

W

L

Weight

½”, ¾”, 1”

2.16

4.77

1.92

.6 lbs

1 ½”, 2”

2.2

5.63

2.3

.8 lbs

2 ½”, 3”

2.2

5.63

2.3

.8 lbs

 

FCC

 

FCC ID

2ANPǪ00NRF9160

FCC ID

X8WBM833F

 

 

 

Upstream Requirements

1/2”	5” Up and 3” Down
3/4”	8” Up and 4” Down
1”	10” Up and 5” Down
1-1/2”	15” Up and 8” Down
2”	20” Up and 10” Down
2-1/2”	25” Up and 12” Down
3”	30” Up and 15” Down
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