# Mechanical watering timer Kärcher WT 4.000 Black Yellow

**URL:** https://aio.lv/en/product--karcher-2645-1740--1483694
**Data updated:** 2025-12-29 07:39 (EET)
**Category:** Garden Irrigation
**Manufacturer:** Karcher
**Manufacturer code:** 2.645-174.0
**EAN:** 4039784535008
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

The Kärcher WT 4.000 is a mechanical watering timer designed for efficient garden irrigation. It features a minimum watering time of 1 minute and operates on a 9V Lithium-Ion battery. With dimensions of 120mm width, 115mm depth, and 125mm height, it is compact and easy to install. The timer is available in a stylish black and yellow color scheme, making it a practical addition to your gardening tools.

## Long description

The Kärcher WT 4.000 mechanical watering timer provides precise watering on demand for small to large garden areas. The unit features a removable display, large control knobs and a clearly arranged control panel for straightforward programming. It supports automatic start and stop at preset times, manual watering and individual setting of watering frequency and duration up to 120 minutes. Tap adaptor and prefilter are included; 9 V battery is not included. The product is compatible with common click-on systems and is designed to reduce unnecessary water flow for environmental and cost benefits.
Advantages
The removable display and large control knobs make programming easy and ergonomic. Automatic start/stop ensures watering occurs exactly at the chosen times while manual override is available when needed. Included tap adapter and prefilter simplify installation and protect the device. An indicator light shows programming status and battery condition. The timer offers flexible start times and watering durations up to 120 minutes for precise irrigation control.
Suitable for
Watering small to large garden areas
Watering under trees and bushes
Irrigating ornamental plants, individual and potted plants
Watering food and useful plants in small beds and pots
Key specifications
Model: Kärcher WT 4.000 (Mechanical watering timer)
Power: 9 V battery (not included)
Maximum watering duration: up to 120 minutes
Features: removable display, manual watering option, indicator light for programming and battery status
Accessories included: tap adaptor and pre-filter
Compatibility: compatible with common click-on systems
Dimensions (manufacturer data): width 120 mm, depth 115 mm, height 125 mm
How to use
Attach the tap adaptor to a compatible outdoor faucet and connect the watering timer. Insert a 9 V battery (not included) and mount the removable display if desired. Use the large control knobs and the clear panel to set the desired watering frequency, start time and duration (up to 120 minutes). Start and stop occur automatically at the preset times; manual watering can be initiated via the control panel when immediate irrigation is needed.
Usage recommendations
For reliable operation replace the 9 V battery promptly when the indicator light shows low battery. Clean the prefilter periodically to prevent clogging and ensure consistent flow. Choose watering durations and frequencies based on plant type, soil conditions and weather to avoid overwatering.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.3 kg |
| Battery technology | Lithium-Ion (Li-Ion) |
| Height | 125 mm |
| Width | 120 mm |
| Depth | 115 mm |
| Product colour | Yellow, Black |
| Control type | Rotary |
| Battery voltage | 9 V |
| Battery level indicator | Yes |
| Built-in display | No |
| Tap adapter included | Yes |
| Product type | Mechanical watering timer |
| Number of outlets | 1 |
| Pre-filter | Yes |
| Automatic on/off | Yes |
| Quantity per pack | 1 pc(s) |
| Battery included | No |
| Minimum watering time | 1 min |
| Maximum watering time | 120 min |
| Number of tap adapters | 1 |

## FAQ

### What payment options are available?

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### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Karcher products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Karcher service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### Where can I download the instructions for Mechanical watering timer Kärcher WT 4.000?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

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