Touchless Basin Faucets: A Practical Sourcing Guide from VIGA

Updated 21 October 2026. Product specifications and drawing references checked against VIGA’s published model information.

A touchless basin faucet needs to fit the basin, the water supply and the people who maintain it. For distributors, contractors and project buyers, a useful comparison starts with those requirements, then moves to the finish and price. At VIGA, we recommend agreeing on a clear specification and checking a sample before confirming a bulk order.

This guide explains what to include in that specification, using two VIGA sensor basin mixer listings as starting points for a product discussion.

Start with the handwashing space

Describe where the faucet will be installed: a hotel guest bathroom, an office washroom, a restaurant handwashing area or another basin application. Include expected usage, basin dimensions and access beneath the counter. A photograph and a dimensioned basin drawing give our team more useful information than a style reference alone.

Keep basin faucets and kitchen sink faucets separate in your specification. If the task involves filling containers, washing food or reaching across a deep sink, explain those needs so the product selection can be reviewed for that application.

Five details to confirm before ordering

1. Basin fit and mounting

Check the mounting-hole diameter, deck thickness, spout height and spout reach against the basin drawing. Review where the water stream will land and how much hand clearance is available. Ask for the installation drawing for the exact model and configuration being quoted, then check a sample on the intended basin.

2. Power supply and service access

State whether the project requires a battery or mains-powered configuration. Ask which power components are included, where they will be installed and how they can be accessed for maintenance. For a mains-powered option, have the installer confirm the electrical requirements for the site. Do not assume that a quoted faucet includes every adapter or accessory.

3. Water connections and temperature control

Specify the connection size, supply arrangement and required temperature-control method. Ask whether the selected configuration accepts hot and cold supplies or needs a separate mixing arrangement. Confirm the permitted pressure and temperature ranges in the model documentation, along with the components included in the package.

4. Sensor operation on the actual basin

During sample review, check activation and shut-off with normal hand movements. Repeat the checks with the intended basin, lighting and installation position. Ask about available sensor adjustments, shut-off settings and troubleshooting instructions for that configuration. Record the agreed settings so the installation team can reproduce them.

5. Maintenance and replacement parts

Ask for cleaning instructions, a parts diagram and a list of serviceable components. Confirm access to the power unit and control components after installation. For a multi-room or multi-site project, include the proposed spare-parts quantity and ordering references in the quotation discussion.

VIGA models to include in your shortlist

• 49111601CH Brass Touchless Sensor Mixer: our product listing identifies this model as a deck-mounted bathroom basin mixer with a chrome finish and DC or AC operation. Specify the required power option when making an inquiry.
• 49111301CH Hot And Cold Sensor Basin Mixer: another model to discuss when reviewing hot-and-cold basin requirements. Ask for its current drawing, supply connections and configuration before comparing it with the first model.

Use these listings to identify a starting model. Confirm the final specification, included accessories, finish, delivery schedule and warranty in the written quotation. For projects with certification requirements, request documents that cover the exact product and destination market.

Compare the listed specifications before choosing a model

The two VIGA listings below give buyers a concrete starting point. These are listed product specifications, not results from a new performance test. Confirm the current configuration in the quotation and approved drawing before ordering.

49111601CH: brass body and a choice of power configuration

• Listed body material: H-59 brass; listed finish: chrome.
• Installation: deck mounted, with a listed mounting-hole diameter of 35 mm.
• Water connection: a listed 50 cm stainless-steel inlet hose; connection options shown are G1/2, G3/8 and 9/16.
• Power: the listing states DC or AC. Specify the required version and ask which power components are included.

49111301CH: an alternative hot-and-cold basin mixer

• Listed body material: zinc alloy; finishes shown are chrome, black and gold.
• Installation: deck mounted, with a listed mounting-hole diameter of 35 mm.
• Water connection: a listed 50 cm stainless-steel inlet hose, with G1/2, G3/8 and 9/16 connection options.
• The product is listed as a hot-and-cold sensor basin mixer. Request its power specification and temperature-control details rather than assuming they match 49111601CH.

For example, if your purchase specification explicitly requires a brass body and an AC option, start the discussion with 49111601CH. If your priority is a hot-and-cold model with a different finish, ask our team to review 49111301CH against the project requirements. Neither the material name nor the finish alone establishes certification, service life or suitability for a particular project.

Read the 49111601 installation drawing with your installer

The drawing marks a 145 mm overall height and a 130 mm horizontal spout dimension. Use those references to discuss clearance and water-stream position with the installer, alongside the basin drawing. The product listing gives a 35 mm mounting-hole diameter; do not confuse the overall faucet dimensions with the hole size.

The drawing also shows the battery box and hose connections below the deck. Plan access to these components before the cabinet or counter is finalized. The diagram illustrates a configuration; it does not establish the accessories supplied with every AC or DC order, or a certified temperature-limiting function.

A practical sample acceptance checklist

Agree on the checks before ordering samples so purchasing, installation and maintenance teams assess the same requirements:

• Match the model, finish and supplied parts to the agreed specification.
• Check mounting fit, hose routing and access beneath the actual basin.
• Have the installer check connections for leaks and review water flow under the site’s operating conditions.
• Check sensor activation, shut-off and temperature control through repeated normal use.
• Review cleaning, power servicing and replacement-part access with the maintenance team.
• Record the accepted sample configuration and any changes required before the bulk order.

What to send VIGA for a useful quotation

Send the model reference, order quantity, destination market and intended application. Add the basin drawing, preferred finish, required power supply, connection size and temperature-control requirements. If you need branded packaging or a specific approval document, include those requirements at the start.

You can copy this inquiry outline:

We are sourcing sensor basin faucets for [application] in [destination market]. Our reference model is [model], with an estimated quantity of [quantity]. Please quote the [finish] version with [power option] and [connection size]. The basin drawing is attached. Please confirm the included accessories, sample arrangements, required documentation, spare parts, warranty and delivery schedule.

Common questions when comparing sensor basin faucets

Does a 35 mm mounting hole guarantee that the faucet will fit?

No. It is one fit requirement. Check deck thickness, fixing clearance below the basin, spout reach, outlet clearance and hose routing against the drawing for the selected model. Confirm the installation on the intended basin before approving the order.

Does “DC or AC” mean that both power systems are included?

Do not assume that it does. State the required power configuration in your inquiry and ask for a list of included power components and accessories. Agree on that list in the quotation.

Which documents should accompany a project inquiry?

Send the basin drawing or mounting dimensions, the required connection size, power arrangement, finish, quantity and destination market. Include any project-specific certification requirements. Ask VIGA for the current model drawing and relevant supporting documents before approving a sample.

Discuss your basin faucet project with VIGA

A clear specification makes it easier to compare products and resolve installation questions before ordering. Contact the VIGA team with your model shortlist and basin details so we can review the configuration and prepare a quotation for your project.

Explore our sensor and touchless faucet range for the wider project discussion.