• Nominal Diameter: DN15 / DN20 / DN25
• Dynamic Range: Q3 / Q1 R250 / R400 / R800 / R1600
• Unit sensitivity class: U0 / D0
• Temperature Class: T30/T50
• Metrology Class: Class 2
• Pressure Rating: PN16
• Protection class: IP68
• Installation: Horizontal or Vertical
• Battery: Lithium, lifespan up to 16 years
• Local Interface & Valve Control: Bluetooth
• WAN Communication: WM-BUS / LoRa 
• Alarm: Leakage; Burst pipe; Lack of water; Reverse flow; Intervention
• Measuring Tube: Brass or Composite
• Starting flow: 1 liter per hour
• Body: Polycarbonate

Ultrasonic water meter manufactured by ADD Grup is designed for water metering in domestic conditions. Installation is quick and easy, and it is highly reliable and accurate. The advantage of this meter is that there are no moving parts and thanks to this, the ADDRA water meter is maintenance-free, does not lose measurement accuracy and does not require verification during its lifetime.

This meter has a low starting flow of only 1 liter per hour, and it automatically records water consumption data, ensuring that this information is stored securely. A custom LCD display displays information about total water consumption, alerts to potential leaks, backflows, and other useful information. In addition, the meter is equipped with a variety of communication interfaces for local access via smartphone, tablet or computer, for communication with the valve, communication channels for remote access and is a cost-effective solution. It also complies with international quality and safety standards. The meter supports credit/prepayment modes of operation. Prepayment is implemented on the basis of the STS standard. For prepayment, it is necessary to purchase an additional ADDRA valve, with which the meter communicates via a BLE interface.