---
product_id: 116276712
title: "– Bau Cosmopolitan E - Infrared Sensor Touchless Basin Mixer Tap with Mixing Device (Water Saving Technology, Battery Powered, 7 Pre-Set Programs, Tails 3/8 Inch), Size 123 mm, Chrome, 36451000"
brand: "grohe"
price: "€ 408.70"
currency: EUR
in_stock: true
reviews_count: 13
category: "Grohe"
url: https://www.desertcart.hr/products/116276712-bau-cosmopolitan-e-infrared-sensor-touchless-basin-mixer-tap-mixing
store_origin: HR
region: Croatia
---

# 50% water saving tech Battery powered, lithium metal 7 pre-set sensor programs – Bau Cosmopolitan E - Infrared Sensor Touchless Basin Mixer Tap with Mixing Device (Water Saving Technology, Battery Powered, 7 Pre-Set Programs, Tails 3/8 Inch), Size 123 mm, Chrome, 36451000

**Brand:** grohe
**Price:** € 408.70
**Availability:** ✅ In Stock

## Summary

> 🚿 Elevate your sink game with smart, spotless style!

## Quick Answers

- **What is this?** – Bau Cosmopolitan E - Infrared Sensor Touchless Basin Mixer Tap with Mixing Device (Water Saving Technology, Battery Powered, 7 Pre-Set Programs, Tails 3/8 Inch), Size 123 mm, Chrome, 36451000 by grohe
- **How much does it cost?** € 408.70 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/116276712-bau-cosmopolitan-e-infrared-sensor-touchless-basin-mixer-tap-mixing)

## Best For

- grohe enthusiasts

## Why This Product

- Trusted grohe brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Sleek, Modern Design:** Compact 123mm size with polished chrome finish adds a professional, futuristic touch to any bathroom.
- • **Smart Water Efficiency:** Cut your water usage by up to 50% without sacrificing performance—eco-friendly meets cost-saving.
- • **Customizable User Experience:** Choose from 7 pre-set programs tailored to your needs for ultimate convenience and control.
- • **Hygienic Touchless Activation:** Infrared sensor ensures water flows only when hands are detected, minimizing germs and maximizing cleanliness.
- • **Effortless Maintenance & Installation:** Smooth chrome finish resists grime and fingerprints; flexible hoses and step-by-step guides make setup a breeze.

## Overview

The GROHE Bau Cosmopolitan E is a battery-powered, touchless basin mixer tap featuring infrared sensor technology and 7 pre-set programs. Designed for water efficiency, it reduces consumption by up to 50% while delivering a full water jet. Its polished chrome finish is durable and easy to clean, and installation is simplified with flexible hoses and clear instructions. Ideal for modern, hygiene-conscious spaces seeking a blend of innovation and style.

## Description

Shop GROHE Bau Cosmopolitan E - Infrared Sensor Touchless Basin Mixer Tap with Mixing Device (Water Saving Technology, Battery Powered, 7 Pre-Set Programs, Tails 3/8 Inch), Size 123 mm, Chrome, 36451000. Free delivery on eligible orders of £20 or more.

Review: Great tap and lots of fun for kids to use it - Installed and so far working great. I think it will definitely save on water use. Kids absolutely love it. As you don’t touch it at all it’s always clean.
Review: Very Disappointed - The battery came for about 11 months and since then i have changed 4 batteries in the past one month. I ordered grohe battery from desertcart paying about £32 still runs for a week or two and stops. I am left with no option but to change the tap now. Not to forget all the running around and wait times before i can get a plumber to do the job!! My bathroom is without a tap now!

## Features

- GROHE’s touchless technology is extra hygienic and water-saving: Its proven infrared sensor detects hand movement so the water only flows when it’s needed; And due to less skin contact, the cleaning effort is reduced to a minimum
- GROHE Water Saving technology reduces water consumption by up to 50% without compromising on performance; Whenever you turn on your tap, you will enjoy a full jet of water while saving money nonetheless
- Just wipe down with a dry cloth – the smooth surface finish is hard-wearing and ensures a lasting luminous sheen; You'll save plenty of time cleaning while your tap always looks new
- Fit your taps hassle-free using our easy installation system; Taps are connected to the mains by flexible hoses – much simpler to get a grip on – and our step-by-step guides take all the stress out of the job; Even a professional fitter will thank you for choosing Easy Installation
- Before You Buy: This tap has a G3/8" European connection; UK homes often use G1/2" fittings, so please check your connection size; If you have G1/2", you will need a pair of 15mm compression x 3/8" BSP male adaptors (sold separately)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07L8XLMMR |
| Batteries | 1 Lithium Metal batteries required. (included) |
| Batteries Required? | Yes |
| Batteries included? | Yes |
| Battery Cell Type | Lithium Metal |
| Best Sellers Rank | 44,599 in DIY & Tools ( See Top 100 in DIY & Tools ) 3 in Touchless Bathroom Sink Faucets |
| Colour | Chrome, Silver |
| Customer Reviews | 3.8 3.8 out of 5 stars (855) |
| Date First Available | 12 Dec. 2018 |
| Delivery information | We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout. |
| Finish | Polished |
| Flow rate | 5.1 Litres Per Minute |
| Handle material | Plastic |
| Handle/lever placement | Center |
| Hose Length | 38.5 Centimetres |
| Included Components | Aerator, Drain, Instruction Manual, Fixings |
| Installation method | Wall Mounted |
| Item Package Quantity | 1 |
| Item Weight | 762 g |
| Item model number | 36451000 |
| Manufacturer | GROHE |
| Material | Other |
| Number Of Holes | 1 |
| Number of Pieces | 1 |
| Number of handles | 1 |
| Part Number | 36451000 |
| Pattern | Battery operated |
| Plug profile | Stand mounting |
| Product Dimensions | 36.5 x 22 x 10.5 cm; 762 g |
| Size | mit Mischung und variabel einstellbarem Temperaturbegrenzer |
| Special Features | Touchless |
| Spout height | 103 Millimetres |
| Spout reach | 154 Millimetres |
| Style | With mixing device |
| Usage | Inside; Professional |

## Product Details

- **Brand:** GROHE
- **Colour:** Chrome, Silver
- **Finish type:** Polished
- **Hole count:** 1
- **Included components:** Aerator, Drain, Instruction Manual, Fixings
- **Material:** Other
- **Mounting type:** Stand mounting
- **Number of handles:** 1
- **Recommended uses for product:** fitting;electronic
- **Special feature:** Touchless

## Images

![– Bau Cosmopolitan E - Infrared Sensor Touchless Basin Mixer Tap with Mixing Device (Water Saving Technology, Battery Powered, 7 Pre-Set Programs, Tails 3/8 Inch), Size 123 mm, Chrome, 36451000 - Image 1](https://m.media-amazon.com/images/I/511C4rzkxoL.jpg)

## Available Options

This product comes in different **Pattern, Style** options.

## Questions & Answers

**Q: Can this tap withstand hard water?**
A: Yes we have had it in for two years now and live in a hard water area. Had no issues at all.

**Q: Hi there where do you buy the remote from to re program the sensor position please ?**
A: The remote is about £300 so unless you’re a professional bathroom fitter you won’t be buying that. You can’t change any of the settings without the remote.

**Q: Is there a brass version of this, also mains powered?**
A: I believe there is. However....since having the tap for 15 months. I have the battery operated one, had two battery replacements...a new tap replaced by Grohe in July 2022. Not surprised, battery dead once again.

**Q: Confirm mains-powered is an UK Plug?**
A: I’ve had mine for about 15 months and the battery has already gone flat. It’s in an upstairs bathroom just shared by my husband and I.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great tap and lots of fun for kids to use it
*by M***C on 22 March 2021*

Installed and so far working great. I think it will definitely save on water use. Kids absolutely love it. As you don’t touch it at all it’s always clean.

### ⭐⭐⭐⭐⭐ Very Disappointed
*by I***N on 16 November 2022*

The battery came for about 11 months and since then i have changed 4 batteries in the past one month. I ordered grohe battery from amazon paying about £32 still runs for a week or two and stops. I am left with no option but to change the tap now. Not to forget all the running around and wait times before i can get a plumber to do the job!! My bathroom is without a tap now!

### ⭐ Terrible
*by M***D on 29 November 2025*

Bought the 2 and they both stopped working terrible product

## Frequently Bought Together

- GROHE 36451000 BAU Cosmopolitan E, mit Mischung und variabel einstellbarem Temperaturbegrenzer, Chrome
- GROHE 35601000 Rapido Smartbox Universal Rough-In Box, Starlight Chrome
- GROHE 27412BE0 Relexa 6 5/8″ Tubular Shower Arm, Polished Nickel

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.hr/products/116276712-bau-cosmopolitan-e-infrared-sensor-touchless-basin-mixer-tap-mixing](https://www.desertcart.hr/products/116276712-bau-cosmopolitan-e-infrared-sensor-touchless-basin-mixer-tap-mixing)

---

*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-07*