Single-jet mechanical water meter Osten-SMART Dn-25 ARIES IS 434 MHz 2,5 R125 25/110 T30 /OS

Osten-SMART DN25 ARIES IS 434 MHz cold-water meter

📡 The Osten-SMART DN25 ARIES IS is a single-jet mechanical cold-water meter with an integrated 434 MHz radio module.

It records consumption mechanically and can transmit readings wirelessly to a compatible AMR or monitoring system.

📶 434 MHz radio communication

This is not a GSM/GPRS modem and it requires no SIM card.

A compatible radio receiver, concentrator or gateway is required for remote collection. The meter does not connect directly to the internet.

Compatibility with Wireless M-Bus must be verified from the product passport.

⚙️ Single-jet mechanical operation

Water flow drives an impeller, and accumulated consumption appears on the mechanical register. Metering continues even when radio communication is unavailable.

📏 DN25 and 110 mm length

DN25 indicates a nominal pipeline diameter of 25 mm. The stated installation length is 110 mm.

📊 Metering performance

• permanent flow Q3 — 2.5 m³/h;
• overload flow Q4 — 3.125 m³/h;
• metrological range — R125.

🌡️ T30 cold-water class

T30 indicates use with cold water up to +30 °C. The meter is not intended for hot water.

🛡️ PN16 pressure rating

The maximum stated operating pressure is PN16 or 1.6 MPa.

🔋 Integrated lithium battery

The radio module operates from an integrated lithium battery with a stated service life of up to ten years.

✅ Key advantages

• wireless readings over 434 MHz;
• no SIM card required;
• independent mechanical register;
• DN25 nominal diameter;
• Q3 2.5 m³/h;
• R125 metrological range;
• 110 mm installation length;
• T30 cold-water class;
• PN16 pressure rating;
• battery life up to ten years;
• anti-magnetic protection;
• AMR-system integration.

📦 Package contents

• Osten-SMART DN25 water meter;
• integrated 434 MHz radio module;
• integrated lithium battery;
• connection fittings depending on supply;
• sealing gaskets depending on supply;
• product passport;
• certificate;
• factory packaging.

The radio receiver, concentrator, internet gateway and server software are normally purchased separately.

⚠️ Confirm before ordering

• exact radio protocol;
• Wireless M-Bus compatibility;
• compatible receiver model;
• transmission interval;
• communication range;
• event and reading archive;
• battery-replacement capability;
• IP protection rating;
• connection-thread size;
• body material;
• permitted installation orientation;
• verification date and interval;
• warranty period.

⚠️ Important: remote access from a phone or through the internet requires a compatible radio receiver and a configured data-collection platform.