# Level switch Karlik FWP-1 — electrical level sensor switch for fluid monitoring

**URL:** https://aio.lv/en/product--karlik-fwp-1--11750996
**Data updated:** 2026-03-08 15:43 (EET)
**Category:** Smart Switches
**Manufacturer:** Karlik
**Manufacturer code:** FWP-1
**EAN:** 5903418068066
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 7.99 €
**Prices and availability valid until:** 2026-07-26 23:59
**Price without VAT (21%):** 6.60 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--karlik-fwp-1--11750996

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

Karlik FWP-1 is an electrical level switch designed to detect and control liquid level in tanks and containers. As a compact level sensor switch, it provides on/off switching for pump control, alarm signaling or automation systems. Suitable for basic fluid monitoring and simple level control tasks in industrial and domestic installations.

## Long description

Karlik FWP-1 — electrical level sensor switch for fluid monitoring is a compact electromechanical level switch designed to detect and control liquid level in tanks and containers. The device provides a reliable on/off contact output for direct pump control, alarm signaling or connection to basic automation systems. Karlik FWP-1 is intended for simple level control tasks in domestic and light-industrial installations where straightforward, robust detection of liquid presence or absence is required.
Advantages
The Karlik FWP-1 offers a compact form factor and simple electrical interface that make installation and integration fast and uncomplicated. Its electromechanical switching principle provides a clear binary output suitable for direct switching of relays or pump starters without the need for complex signal processing. The sensor is suitable for environments where a durable, low-maintenance solution is preferred and where continuous level measurement is not necessary.
Suitable for
 Basic pump start/stop control in small tanks and cisterns
 Low-level and high-level alarm signaling
 Domestic water storage and heating systems
 Simple process control in light-industrial applications
Key specifications
 Function: binary level switch (on/off)
 Output: electromechanical contact suitable for switching loads via relay or contactor
 Mounting: compact inline/immersion form factor for installation at a fixed level
 Operating environment: intended for liquid-level detection in tanks and containers
 Construction: robust, low-complexity mechanical switching mechanism for straightforward maintenance
How to use
Install the Karlik FWP-1 at the required fixed level inside the tank or container following the manufacturer’s mounting recommendations and observing polarity and wiring diagrams. Connect the switch output to a relay input, pump starter or alarm circuit using appropriate cable and protective devices sized for the controlled load. Verify correct operation by filling or emptying the vessel to actuate the switch and confirm the expected on/off behavior. Perform periodic visual inspection and functional tests to ensure reliable operation.
Usage recommendations
Use appropriate overcurrent protection and switching devices when connecting to pumps or high-current loads. Avoid using the FWP-1 where continuous level measurement or precise analog control is required; choose this device for discrete level detection and simple automation tasks. Keep the contact area clean from debris and follow local electrical codes during installation.

## Specifications

| Feature | Value |
|---|---|
| Type | Level switch |

## FAQ

### How much does the Level switch Karlik FWP-1 cost, and is it available for purchase?

The price is 7.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 197 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 16.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### 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 Karlik 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 Karlik 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

## Image

https://aio.lv/img/cache/product/11750996/67129691_large.webp