# Aquarium Heater Thermostat sera SE-08740, 200 W, temperature range 18–32 °C

**URL:** https://aio.lv/en/product--sera-se-08740--12044757
**Data updated:** 2026-03-12 19:27 (EET)
**Category:** Aquarium Supplies
**Manufacturer:** sera
**Manufacturer code:** SE-08740
**EAN:** 4001942087407
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 35.99 €
**Prices and availability valid until:** 2026-07-21 23:59
**Price without VAT (21%):** 29.74 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sera-se-08740--12044757

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 14.07.2026 | free |
| Pickup points | 17.07.2026 | 1.89 EUR |
| Courier delivery to door | 17.07.2026 | 4.99 EUR |

## Summary description

Electric aquarium heater thermostat by sera, model SE-08740, 200 W with adjustable temperature range 18–32 °C. Designed to maintain stable water temperature for freshwater and tropical aquariums. Features integrated thermostat control for consistent heating, suitable for medium to large tanks, and practical for use in breeding, fish health maintenance, and planted setups.

## Long description

The sera SE-08740 aquarium heater thermostat is a compact 200 W electric heater designed to maintain a stable water temperature between 18 and 32 °C for freshwater and tropical aquariums. Constructed with shock-resistant quartz glass and a precision protection circuit, the unit combines a short housing profile with an integrated thermostat control and an indicator lamp for on/off status. A protective grid surrounds the heating element to reduce direct contact and allow safe placement in medium to large tanks used for general aquarium keeping, breeding, and planted setups.
Advantages
The heater offers a stable, adjustable temperature range of 18–32 °C and a compact form factor that fits easily in aquariums with limited space. Shock-resistant quartz glass improves durability while the protective grid and precision protection circuit increase operational safety. An integrated thermostat maintains set temperature automatically and a visible indicator lamp shows when the heater is active. The design supports use in a variety of freshwater and tropical aquarium applications without requiring separate external controllers.
Suitable for
Maintaining stable temperatures in medium to large freshwater and tropical aquariums
Breeding setups that require consistent water temperature
Planted aquariums where thermal stability supports plant growth
General fish health maintenance and recovery tanks
Key specifications
Power: 200 W
Adjustable temperature range: 18–32 °C
Construction: shock-resistant quartz glass heating tube
Integrated thermostat control for automatic temperature regulation
Protective grid surrounding the heating element
Indicator lamp for on/off function status
Compact/short housing suitable for limited-space installation
How to use
Install the heater fully submerged in the aquarium water, positioning it horizontally or vertically according to the manufacturer’s markings and ensuring the protective grid is unobstructed. Set the desired temperature within the 18–32 °C range by adjusting the thermostat control. Allow the heater to run and reach the set temperature while monitoring with a separate aquarium thermometer to verify accuracy. The indicator lamp will show when the unit is actively heating. Avoid switching the heater on before full submersion and do not operate the device outside the recommended water range to prevent damage.
Usage recommendations
For consistent results, place the heater near a water flow area (filter outflow) to promote even heat distribution throughout the aquarium. Regularly check the external condition of the quartz glass and protective grid, and verify temperature with an independent thermometer. Do not use the heater in saltwater aquariums without confirming material compatibility and follow local safety regulations when discarding or recycling electrical equipment.

## Specifications

| Feature | Value |
|---|---|
| Power | 200 W |
| Temperature range (T-T) | 18 - 32 |
| Warranty period | 5 year(s) |

## FAQ

### How much does the sera SE-08740 aquarium heater thermostat 200 W cost, and is it available for purchase?

The price is 35.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 11 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 14.07.2026 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 sera 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 sera 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 sera SE-08740 aquarium heater thermostat 200 W?

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

https://aio.lv/img/cache/product/12044757/67599733_large.webp