--- product_id: 226331276 title: "W3230 20A DC 12V" brand: "aideepen" price: "121 Lei" currency: RON in_stock: true category: "Aideepen" url: https://www.desertcart.ro/products/226331276-w3230-20a-dc-12v store_origin: RO region: Romania --- # 20A max current for robust control Fast 0.5s refresh rate for real-time response Ultra-precise 0.1°C temperature accuracy W3230 20A DC 12V **Brand:** aideepen **Price:** 121 Lei **Availability:** ✅ In Stock ## Summary > 🌡️ Stay Cool or Heat Up—Master Your Environment Like a Pro! ## Quick Answers - **What is this?** W3230 20A DC 12V by aideepen - **How much does it cost?** 121 Lei with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/226331276-w3230-20a-dc-12v) ## Best For - aideepen enthusiasts ## Why This Product - Trusted aideepen brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Smart Safety Alerts:** Built-in alarm system notifies you instantly when temperature limits are reached, preventing costly mishaps. - • **Customizable Control:** 10 programmable parameters (P0-P9) let you tailor the thermostat to your exact specifications and workflow. - • **Dual Mode Flexibility:** Seamlessly switch between heating and cooling modes to adapt to any environment or project need. - • **Compact & Durable Design:** Sleek 79x43x26mm polycarbonate body fits effortlessly into any setup while ensuring long-lasting performance. - • **Precision at Your Fingertips:** Experience pinpoint temperature control from -55°C to 120°C with 0.1°C accuracy—never miss the perfect climate. ## Overview The Aideepen W3230 is a high-precision 12V digital thermostat designed for professional-grade temperature regulation. Supporting a wide range from -55°C to 120°C with 0.1°C accuracy and a rapid 0.5-second refresh rate, it offers versatile heating and cooling modes, customizable settings, and safety alarms. Its compact polycarbonate build ensures durability and easy integration, making it ideal for industrial, scientific, or advanced hobbyist applications. ## Description Aideepen W3230 20A 12V Digital Thermostat, Digital Temperature Controller Regulator Heating Cooling Control Thermometer Instrument : desertcart.co.uk: Business, Industry & Science ## Features - ✔ Temperature controller system power input: DC 12V; temperature control range: -55°C to 120°C; temperature measurement accuracy: 0.1°C; refresh rate: approximately 0.5s. Sensor wire: 1 meter - ✔ Dimensions: 79*43*26mm; cutout dimensions: 76*39mm. Manual download: Please enter all characters enclosed in brackets (http://8.217.75.21/Industrial/Multilingual/CBAA0029-018_UK.pdf) - ✔ Multiple Functions: Selectable cooling or heating operating mode, with a °C/°F switch function, adaptable to different scenarios. P0-P9 has 10 parameter/function settings. (Note: Please contact us if you have any questions.) - ✔ Cooling/Heating: After setting parameters such as heating/cooling mode, start temperature, and temperature differential according to the manual, the device automatically controls the cooling/heating function when the set conditions are met. - ✔ Temperature Calibration: If the temperature controller's measured temperature deviates, the temperature can be calibrated as needed for accurate temperature control. - ✔ Alarm function: When the temperature reaches the set temperature, the controller will alarm (-55~120℃). You can also set the maximum/minimum upper limit temperature to avoid accidents. (For more functions, please refer to the detailed description or instruction manual) ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08DD9LNZL | | Best Sellers Rank | 15,872 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 17 in Temperature Controllers | | Brand | Aideepen | | Colour | 1Pack W3230 12V | | Country Of Origin | China | | Customer Reviews | 4.2 4.2 out of 5 stars (406) | | Included Components | W3230 Digital Temperature Controller*1 + Instruction Manual*1 | | Item Weight | 50 Grams | | Manufacturer | Aideepen | | Manufacturer Part Number | A7012442 | | Material | Polycarbonate (PC) | | Number of Items | 1 | | Number of Packs | 1 | | UPC | 782940081775 | | Voltage | 12 Volts | ## Product Details - **Brand:** Aideepen - **Colour:** 1Pack W3230 12V - **Item weight:** 50 Grams - **Material:** Polycarbonate (PC) - **Voltage:** 12 Volts ## Images ![W3230 20A DC 12V - Image 1](https://m.media-amazon.com/images/I/61jx+jFUeQL.jpg) ![W3230 20A DC 12V - Image 2](https://m.media-amazon.com/images/I/31e+waO+dhL.jpg) ![W3230 20A DC 12V - Image 3](https://m.media-amazon.com/images/I/41aZYy2cbJL.jpg) ![W3230 20A DC 12V - Image 4](https://m.media-amazon.com/images/I/41Zr5YB56JL.jpg) ![W3230 20A DC 12V - Image 5](https://m.media-amazon.com/images/I/51qOpLWtpAL.jpg) ## Available Options This product comes in different **Color** options. ## Questions & Answers **Q: How long will the settings be retained when the power is taken off?** A: You can safe the settings by turning P7 ON **Q: Can I use this controller to switch a 250v ac aquarium heater? Thanks in advance** A: The relay should be able to handle that providing the heater doesn't draw more than 10A, which I imagine it doesn't as it would turn your aquarium into a kettle. Be aware that this unit is powered from a 12V supply. You can buy similar units that can be powered from the mains (such as https://www.amazon.co.uk/dp/B089RKGW5C/) if you don't want/have a separate power supply. **Q: Will it keep the settings if the power is cut** A: I disconnect this when charging up the car battery to which it is connected. The settings are retained during this time. **Q: Can you set a hysteresis value for the SET temperature (so the output stays on until temperature drops below the hysteresis)?** A: No. This is a simple switch on switch of the heater once the set desired temperature is set. ## Frequently Bought Together - Aideepen W3230 20A 12V Digital Thermostat Digital Temperature Controller Regulator Heating Cooling Control Thermometer Instrument - VIABRICO 14AWG 100FT Electrical Wire Cable 2 Conductors Red Black Cable Hookup LED Lighting Strips Flexible Wire Extension Cord 14 Gauge Copper Clad Aluminum Copper Wire 12V/24V DC Cable --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.ro/products/226331276-w3230-20a-dc-12v](https://www.desertcart.ro/products/226331276-w3230-20a-dc-12v) --- *Product available on Desertcart Romania* *Store origin: RO* *Last updated: 2026-09-07*