# KEMOT PROsinus-800 Power Inverter 12V/230V 500W with Pure Sine Wave and UPS Charging Function

**URL:** https://aio.lv/en/product--kemot-urz3405--4301207
**Data updated:** 2026-06-02 20:10 (EEST)
**Category:** Power Inverters
**Manufacturer:** KEMOT
**Manufacturer code:** URZ3405
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 111.49 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 92.14 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--kemot-urz3405--4301207

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.89 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

The KEMOT PROsinus-800 is a reliable 12V to 230V power inverter providing 500W of continuous power with a pure sine wave output. Designed for emergency power supply, it features an integrated charging function, making it ideal for maintaining operation of sensitive electronic devices, heating systems, and pumps during power outages. Its robust design ensures stable performance and efficient energy conversion for various home and professional applications.

## Long description

The KEMOT PROsinus-800 is a high-performance power inverter designed to convert 12V DC battery power into 230V AC electricity. Featuring a pure sine wave output, this device ensures that sensitive electronic equipment, such as heating boiler pumps, fans, and control systems, operates smoothly and safely during power outages. With an integrated UPS charging function, the unit automatically switches to battery power when grid electricity fails and recharges the connected battery once power is restored, providing a seamless emergency power solution.
Advantages
The primary benefit of the KEMOT PROsinus-800 is its pure sine wave technology, which mimics the quality of standard household electricity, preventing damage to delicate motors and electronic components. The integrated charging system simplifies setup by eliminating the need for a separate battery charger, while the robust construction ensures long-term reliability. Its ability to handle inductive loads makes it particularly effective for heating systems that require stable voltage to maintain proper circulation and combustion.
Suitable for
Heating boiler feed pumps
Boiler ventilation fans
Sensitive electronic control systems
Emergency lighting and home security devices
Small household appliances requiring stable AC power
When it may not be suitable
This inverter is not designed for high-wattage appliances such as electric heaters, kettles, or power tools that exceed the 500W continuous power limit. It is also not intended for use with lithium-ion battery banks unless specifically configured, as it is optimized for lead-acid battery chemistries.
Key specifications
Output voltage: 230V AC
Input voltage: 12V DC
Continuous power: 500W
Waveform: Pure sine wave
Compatible battery types: 12V Lead-acid (Pb)
Recommended battery capacity: 18Ah to 100Ah
How to use
To set up the device, connect a compatible 12V lead-acid battery to the input terminals, ensuring correct polarity. Plug the inverter into a standard wall outlet to enable the UPS charging function and connect your devices to the AC output socket. The unit will monitor the grid status and automatically activate the inverter mode during a power failure, drawing energy from the connected battery to keep your equipment running.
What to consider before purchase
Ensure your total connected load does not exceed 500W.
Verify that your battery capacity is sufficient for your required backup time.
Confirm the device is placed in a well-ventilated area to prevent overheating.
Check that your battery type is compatible with the charging parameters.
Usage recommendations
For optimal performance and safety, always use high-quality cables for battery connections and ensure the battery is kept in a dry, temperature-controlled environment. Regularly check the battery health to ensure reliable backup performance during unexpected power outages.

## FAQ

### How much does the KEMOT PROsinus-800 Power Inverter 12V/230V 500W cost, and is it available for purchase?

The price is 111.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 37 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 15.07.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can KEMOT PROsinus-800 Power Inverter 12V/230V 500W be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 KEMOT 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 KEMOT 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/4301207/51547251_large.webp