Digital Oval Gear Flow Meter for Water, G1/2", RS485

5 out of 5 based on 2 reviews | Write a review

$182.50

Precise liquid measurement for water and chemical liquids is achieved with ATO digital oval gear water flow meter. A compact G1/2 port design makes the small water flow meter ideal for industrial and portable applications. Expect highly accurate data with a flow range of 30-1200L/H. Stainless steel construction ensures durability, while pulse output and RS485 communication provide reliable digital control. Portable gear flow meter features an IP65-rated LCD for clear real-time readings.

SKU: ATO-FLOW-LCD485

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Delivery date: 6-12 days

Overview

Engineered for demanding environments, G1/2" digital oval gear flow meter operates reliably at up to 80°C and 1.0MPa. The industrial liquid flow meter delivers precise pulse signals with a clean 50±10% duty cycle and offers RS485 communication. Low power consumption and robust NPN outputs highlight the versatile digital design and a miniature stainless steel body ensures the portable flow meter withstands corrosive chemical liquids.

Specification

Gear Flow Meter Parameters
Model	ATO-LCD485ZATS-1/2
Port Size	G1/2" (1/2 inch)
Accuracy	± 5%
Operating Temperature Range	≤ 80°C
Load Capacity	≤ 10mA (at DC 5V)
Maximum Allowable Pressure	≤ 1.0 MPa
Storage Temperature/Humidity	-25 ~ +80°C / 25% to 90% RH
Flow Range	30 - 1200 L/H
Pulse Characteristics	Frequency (Hz) = [2.3 * Q] ± 5% (i.e., 138 pulses per liter of water)
Output Pulse High Level	> DC 4.5V (at DC 5V input)
Output Pulse Low Level	< DC 0.5V (at DC 5V input)
Output Pulse Duty Cycle	50% ± 10%
Output Signal	RS485
Material	Stainless Steel
Net. Weight	1.2kg
Application	Gas stations, petrochemical plants, refineries, tankers and other liquid flow control fields
LCD Screen Parameter
Operating Voltage	10-30 VDC
Operating Current	60mA MAX
Operating Pressure	5 kg/cm²
Response Time	Real-time
Operating Ambient Temperature	Real-time
Measured Liquid	Water or other chemical liquids
Ingress Protection (IP) Rating	IP65
Instantaneous Flow Settable Range	0 ~ 999.99 LPM (Liters Per Minute)
Total Flow Settable Range	0 ~ 999,999 FTM (Flow Total Units)
Instantaneous Flow Control Output	NPN (150mA Max)
Total Flow Control Output	NPN (150mA Max)

Features

Precision performance: Miniature digital gear flow meter for water delivers exceptional accuracy with a stable pulse output for reliable data.
Advanced sensing: Selected Hall effect components ensure long-term signal stability and prevent aging for consistent operation.
Durable construction: Crafted from high-grade stainless steel, this positive displacement flow meter withstands corrosion, high pressure up to 1.0MPa, and demanding industrial environments.
Secure sealing: A uniquely designed sealing ring with balanced upper and lower pressure resists leakage effectively.
Clear readability: A high-definition display provides instant, clear readings of flow rate and total volume for easy monitoring and control.
Proven reliability: ATO mini gear flow meter offers stable performance across a wide temperature range, maintaining precision in various applications.
Wide compatibility: The unit is widely used in diverse settings from gas stations to chemical plants, handling various liquids with precision.

Dimension (Unit: mm)

Dimension of digital oval gear flow meter for water

Application

Application of digital oval gear flow meter for water

Tips: What measurement accuracy does the digital oval gear water flow meter offer?

The measurement accuracy is defined by its pulse output specification. The small liquid gear flow meter generates a precise 138 pulses per liter of water, with a pulse frequency linearity of ±5% across the entire flow range (30-1200 L/H). This ensures highly accurate total volume measurement (totalization). Actual accuracy for water will be excellent, but may vary slightly with liquid viscosity and operating conditions.

Existing reviews of Digital Oval Gear Flow Meter for Water, G1/2", RS485

A very stable flow meter

We've been using this oval gear flow meter for several weeks now, and it's been working flawlessly. Installation was simple, and the measurements have stayed accurate and consistent from the start.

From: Violet | Date: 31/07/2026

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Looking for a flow meter

I am looking for a liquefied petroleum gas (LPG) flow/consumption meter with RS485 communication capability. Any recommendations?

From: Kenya | Date: 29/01/2026

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ATO Responded

Hello, please provide the flow range, pipe diameter, temperature, and pressure of this flow meter, and whether these parameters are subject to change. Does this flow meter require explosion-proof protection?

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