RESTMO O-WM-5-GY Water Flow Meter with Dual-Zone Display

Dual-Zone: The Restmo O-WM-5-GY water flow meter tracks water volume and real-time flow rate for hose use. Its display separates session, recent daily average, cumulative total, and flow-rate readings, while measurement units can be switched between gallons and liters.

At a glance

Shows session use, an average daily consumption over the last 7 days, cumulative use since the TOTAL mode reset, and live flow rate.
Switches between gallons and liters. The SET button changes modes and the CLR button resets recorded data.
A metal inlet filter is described as anti-clogging, and the connector is specified for standard garden hoses.

Price

$25.19Save 10%

Reference price: ~~$27.99~~

Price checked: Nov 12, 2026

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Pros and cons

Pros

Separate session, recent daily-average, cumulative-total, and flow-rate views make it easier to track different watering periods.
Gallons and liters are both supported, with buttons for mode changes and resetting data.
The listing specifies a brass hose connector, an inlet filter, IPX5 rating, and a stated operating pressure range.

Technical specifications

12 specifications

Identity
Brand	Restmo
Model	O-WM-5-GY

Display
Screen technology listed	LCD

Dimensions and installation
Dimensions listed	3.5"D x 1.9"W x 1.9"H
Hose connector	3/4" NH Metal Inlet

Measurement and operation
Measurement tolerance claimed	±4%
Measurement units	Gallons and Liters

Construction and operating conditions
Body material	ABS
Connector material	pure brass
Waterproof rating	IPX5
Working pressure range	0 to 116 PSI (0 to 8 Bar)
Color	Gray

What to know before buying

The stated ±4% measurement tolerance is a listing claim under normal flow conditions, not an independently verified accuracy result. DAY is described as an average over the last 7 days, and TOTAL accumulates only since its mode reset.

Who is it for?

A good fit for

Gardeners tracking hose or sprinkler water use by session or over time.
RV users monitoring water while filling a tank, where the stated hose connection suits their setup.
Buyers who want live flow-rate and volume readings in gallons or liters.

Less suited to

Buyers who need independently verified measurement accuracy or a meter with specifications beyond the stated pressure range.

RESTMO O-WM-5-GY Water Flow Meter with Dual-Zone Display · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.5 / 5 · 109 ratings

5 stars73%73%
4 stars18%18%
3 stars2%2%
2 stars2%2%
1 star5%5%

Customer feedback highlights good functionality and build quality, with some customers describing the meter as accurate and reassuring for water measurements. That reported experience is relevant for routine hose and RV monitoring, but it does not independently establish the listed ±4% tolerance. Aggregate ratings are mostly five-star, though lower-star ratings are also present and their reasons are not provided.

Positive themes

Customers describe the meter as working well and being good quality.
Customers appreciate its accuracy, with one reported comment connecting it to greater confidence in measurements.

Frequently asked questions

What readings does the display provide?

The listing describes session volume, a daily average based on the last 7 days, cumulative volume since the TOTAL mode reset, and real-time flow rate.

Can it display gallons and liters?

Yes. The listing says a long press of SET switches between gallons and liters.

What hose connection does it use?

It has a listed 3/4" NH metal inlet, described as compatible with most standard garden hoses.

How should I interpret the accuracy claim?

The listing states a ±4% tolerance under normal flow conditions. Treat that as a manufacturer claim rather than an independently verified measurement.