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Neo smart water valve

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Device identification

Device type: Smart water valve

Device model: NAS-WV02W

Main features

  • Drinking-water certified brass valve (NSF).

  • Ultrasonic measurement system - non-mechanical sensors detect flow rate, pressure, and temperature with high precision and no moving parts.

  • Real-time monitoring & consumption tracking - view live flow rate, water temperature, pressure, and total water consumption directly in the Shelly Smart Control app.

  • Fast Open/Close operation for responsive shut-off and water supply control.

  • Reliable & precisе measurement - temperature accuracy ± 0.5 °C, pressure accuracy ± 1 kPa, and flow-volume precision ± 0.1 gal (0.38 l).

  • Wi-Fi and Bluetooth connectivity - No hub required.

  • Local web interface for direct device access.

  • Standard G 1-1/4 BSPP thread with DN25 (G1 R) adapter included in the packaging.

Connectivity

  • Wi-Fi

  • Bluetooth

User interface

Valve overview.png

Manual control

Action

How to

Open the valve

Press the Water on/off button. The indicator light turns green.

Close the valve

Press the Water on/off button. The indicator light turns red.

AP and Bluetooth reactivation

Press and hold the Connection button until the indicator light start to flash slowly. This operation reactivates AP and Bluetooth connection. After the device is re-connected, the indicator light becomes permanent.

LED indicators' signals

Device state

Indicator status

Awaiting connection

The Connection button’s light flashes once every 2 seconds

Connected

The Connection button’s light is steady

Opened

Water ON/OFF indicator’s light is green

Closed

Water ON/OFF indicator’s light is red

Network reset

Press and hold the Connection button until the indicator light start flashing

Specifications

Parameter

Value

Power supply

DC 5V / 2 A

Maximum working current

800 mA

Standby power consumption

0.3 W

Valve on/off time

12 seconds

Valve diameter

DN25 / 1 inch pipe

Water temperature detection range

−10°C to 65°C (14°F ~ 149°F)

Water temperature detection accuracy

±0.5°C (±0.9°F)

Water pressure range

0 ~ 200 psi (0 ~ 1378.95 KPa)

Water pressure detection accuracy

±1 kPa

Accuracy of water flow detection

0.1gal (0.38l)

Wireless frequency

2.41 to 2.48 GHz / 5.18 to 5.85 GHz

Wireless standard

IEEE802.11 a/b/g/n, IEEE802.11 a/11n/11ac

Bluetooth version

Bluetooth 5.0

Working temperature

1°C to 65°C (34°F to 149°F)

Working humidity

1% to 95% RH

Thread type

G1-1/4 BSPP thread; DN25 G1 R adapter included in the packaging

Ingress protection

IPX7

Size (L x W x H)

195 × 78 × 102 mm / 7.7 × 3.1 × 4 in

Shelly Smart Control app

Adding the device to shelly Smart Control

Shelly Web user interface

Accessing local web interface

Compliance

NEO smart water valve multilingual EU declaration of conformity.pdf

Printed user guide

User guide Neo water valve EN DE.pdf

Installation guide

Step 1.png

  1. Wrap the connector with sealing tape.

  2. Attach the connector to the main water supply line.


Step 2.png

  1. Tighten the connector with the hex keys.

  2. Wrap water valve copper pipe with sealing tape.

Step 3.png

  1. Put the spacer into the connector, and then dock the water valve copper pipe.

Step 4.png

  1. Tighten the adapter nuts with the wrench.

  2. Repeat the steps for the other valve's end.


Connecting the power supply

Supply connection.png


  1. Check the power supply interface slot.

  2. Align at the interface and press tightly.

  3. Tighten the nut by rotating it clockwise.

Frequently asked questions

Q: Why does the water valve show a pressure reading of 1 bar even when nothing is connected and no water pressure is applied?
A: Without consumption, the displayed value is the absolute pressure, not the gauge (water) pressure. To find the actual water pressure, subtract the atmospheric pressure from the reading. Since it varies with altitude, use the value that corresponds to your local area.

Q: Can the valve be powered by an alternative power supply?
A: Yes. The device may be connected to a DC 5V, 2A power bank.

Q: Why does the valve's reading reset to zero?
A: At very low consumption levels, when the flow doesn't reach a certain threshold during the measurement interval, it won't register as a change in the reading, and the indication resets to zero.

Q: Is the valve suitable for use with hot water?

A: No, this valve is designed for cold water use only. Higher temperatures may cause inaccurate measurements.

Disposal and recycling

Do not dispose of the product in household waste. Recycle the product to prevent environmental and health damage and to promote resource conservation. Dispose of the product at an appropriate waste collection point at your own responsibility.

Resellers, from which the Device was purchased, are required to accept Waste Electrical and Electronic Equipment (WEEE) free of charge for proper disposal.

Some electronic products may store personal data. The user is responsible for deleting this data before disposing of the Device. For deletion, reset the device to its factory settings.

Manufacturer

NEO Smart Technology (GuangDong) Co. LTD

Address: 7-10/Floor building 28th, Phase III, Le Chuang Cheng Industry Park,
NO.29 LiCheng Industrial Avenue, Shuikou Street, HuiCheng District, HuiZhou
E-mail: support@szneo.com

Importer

Shelly Europe Ltd.

Address: 51 Cherni Vrah Blvd., bldg. 3, fl. 2-3, Sofia 1407, Bulgaria,

Email: support@shelly.cloud

Website: https://www.shelly.com