# Aquarium temperature controller AQUAEL 121218, temperature range 20–33 °C

**URL:** https://aio.lv/en/product--aquael-121218--4302468
**Data updated:** 2026-03-27 13:32 (EET)
**Category:** Aquarium Supplies
**Manufacturer:** AQUAEL
**Manufacturer code:** 121218
**EAN:** 5905546314503
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 37.99 €
**Prices and availability valid until:** 2026-07-29 23:59
**Price without VAT (21%):** 31.40 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--aquael-121218--4302468

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 21.07.2026 | free |
| Pickup points | 24.07.2026 | 1.89 EUR |
| Courier delivery to door | 24.07.2026 | 4.99 EUR |

## Summary description

AQUAEL 121218 is an aquarium temperature controller designed to maintain water temperature between 20 and 33 °C. Compact and lightweight (package weight 310 g; package dimensions 90×50 mm), it monitors and regulates heating devices to ensure stable conditions for aquatic life. Suitable for hobby and small professional aquaria requiring precise temperature control.

## Long description

AQUAEL 121218 is an aquarium temperature controller designed to maintain a stable water temperature between 20 and 33 °C. The compact unit monitors aquarium heaters and switches them on or off to keep the selected temperature, supporting steady conditions for fish, plants and invertebrates. Lightweight and easy to install, this controller is intended for hobby and small professional aquaria that require reliable, straightforward temperature regulation.
Advantages
The controller offers a clearly defined temperature range of 20–33 °C and automatic switching of connected heating devices to maintain the setpoint. Its compact size and low package weight make handling and installation simple, while compatibility with standard aquarium heaters allows flexible use. The unit provides constant monitoring to reduce temperature fluctuations and helps protect aquatic life from thermal stress.
Suitable for
Freshwater and marine aquaria where temperature must be maintained within 20–33 °C
Small hobby tanks and nano-aquaria
Breeding setups requiring stable thermal conditions
Research or educational aquaria with moderate temperature control needs
Key specifications
Temperature control range: 20–33 °C
Function: monitors and switches heating devices to maintain set temperature
Compact physical dimensions suitable for small installations
Lightweight design facilitating easy mounting and handling
How to use
Mount the AQUAEL 121218 controller near the aquarium following any included mounting instructions and connect it to the aquarium heater and mains power. Set the desired temperature within the 20–33 °C range using the controller’s adjustment mechanism. The device will then monitor the water temperature and switch the connected heater on or off to maintain the setpoint. Periodically verify the water temperature with a separate thermometer to confirm proper operation and recalibrate or adjust the setpoint if necessary.
Usage recommendations
Install the controller in a dry, accessible location and ensure electrical connections meet local safety standards. Use a reliable aquarium thermometer to cross-check readings after installation. Avoid setting temperatures outside the 20–33 °C range and select an appropriate heater wattage for the aquarium volume to ensure efficient regulation.

## Specifications

| Feature | Value |
|---|---|
| Package weight | 310 g |
| Package depth | 90 mm |
| Package height | 380 mm |
| Package width | 50 mm |
| Temperature range (T-T) | 20 - 33 |
| Pallet gross weight | 314000 g |
| Customs product code (TARIC) | 85161080 |

## FAQ

### How much does the AQUAEL 121218 aquarium temperature controller cost, and is it available for purchase?

The price is 37.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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 21.07.2026 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 AQUAEL 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 AQUAEL 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/4302468/53656268_large.webp