--- product_id: 109112375 title: "Gic Liquid level Controller 4421AD1 , 240 VAC" brand: "gic" price: "£5.55" currency: GBP in_stock: false reviews_count: 8 url: https://www.desertcart.co.uk/products/109112375-gic-liquid-level-controller-4421ad1-240-vac store_origin: GB region: United Kingdom --- # 240 VAC power output 1k to 200k sensitivity range -10 to +60°C operating temp Gic Liquid level Controller 4421AD1 , 240 VAC **Brand:** gic **Price:** £5.55 **Availability:** ❌ Out of Stock ## Summary > ⚙️ Master your liquid levels with precision and power! ## Quick Answers - **What is this?** Gic Liquid level Controller 4421AD1 , 240 VAC by gic - **How much does it cost?** £5.55 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/109112375-gic-liquid-level-controller-4421ad1-240-vac) ## Best For - gic enthusiasts ## Why This Product - Trusted gic brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Trusted Brand Reliability:** GIC’s industrial-grade controller outperforms hobby kits—engineered for professionals. - • **Wide Operating Conditions:** Operates flawlessly from -10°C to 60°C and 5-95% humidity (non-condensing). - • **Versatile Mounting Options:** Easily install on base or DIN rail to fit your setup seamlessly. - • **Robust Industrial Grade Power:** Reliable 240 VAC output designed for demanding professional environments. - • **Precision Control at Your Fingertips:** Adjust sensitivity from 1k to 200k for exact liquid level management. ## Overview The GIC 4421AD1 Liquid Level Controller delivers industrial-grade precision with a 240 VAC output and adjustable sensitivity from 1k to 200k ohms. Designed for professional use, it supports base or DIN rail mounting and operates reliably in temperatures from -10°C to 60°C with 5-95% non-condensing humidity. Weighing just 235g, this controller is a trusted solution for accurate liquid level management in demanding environments. ## Description 1. 240 vac, liquid level controller, 1 c/o, 1k to 200 k sensitivity,draining & filling.: Gic 3. Humidity %: 5 to 95 % rh (non condensing) 4. Item weight : 235 g 5. Mounting type : base/din rail 6. Operating temperature : -10 to +60 d. Review: Good Water Level Controller - Have been using this WLC for more than2 years. Absolute Marvel. Just fit & forget gadget. Anyone having issues with its function, sure had made wrong connection. A1 & A2 at terminals for auxillary power supply. 18 goes to power input of the coil of contractor. Connect CMN sensors at the bottom of sump & overhead tank. Connect P1 above CMN, just 2-3 inches above the pump foot value. This is dry run level. Position of sensor P2 is critical. Do not connect P2 at the top sump level. Auto run will not function most of the time. Connect P2 at such a height above P1 so that this sump volume is about 1.5 times your overhead tank capacity. I have a overhead tank of 1000 litres & I have fixed P2 about 20 inches above P1 in my sump. This is the optimum position of P2. Connect P3 about 3 inches above overhead tank outlet & P4 at about 3 inches below overhead tank inlet level. Be clear auto run will function only when all the 3 sensors, CMN, P1 & P2 are inside water in the sump. In this condition auto run will function flawlessly. Pump will switch on when water goes below P3 & will be automatically switched off when water level rises above P4. In case water level in sump goes below P1, pump will switch off automatically, giving dry run protection. Once water starts filling the sump, only when the level rises above P2, auto run will resume again. Occasionally, when water level in sump is between P1 & P2 & you want to pump water, go for manual start & pump will switch off when water rises above P4 or goes below P1. Logic of all water level controllers in market is the same. But this one is of industrial quality, ruggedly built with quality electronic components. Make sure the wire from overhead tank to controller is routed in electric pipe & sensors are installed in sump & overhead tank using pipes & cable ties. Then this automation will be truly fit & forget one. This is DIY stuff, but you need time, patience & clarity. Thanks Review: Excellent - Excellent. Work good. ## Features - Liquid level controller - Power output: 240 VAC - Item Weight : 235 g ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B075Z1BWK1 | | Best Sellers Rank | #38,462 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #85 in Liquid Level Sensors | | Brand | GIC | | Brand Name | GIC | | Colour | multicolor | | Customer Reviews | 4.1 out of 5 stars 142 Reviews | | Display Type | LED | | Item Weight | 150 Grams | | Model Number | 4421AD1 | | Part Number | 44S0006-4421AD1 | | Smart Home Compatibility | Not Smart Home Compatible | | Voltage | 240 Volts | ## Product Details - **Brand:** GIC - **Colour:** multicolor - **Display Type:** LED - **Item Weight:** 150 Grams - **Voltage:** 240 Volts ## Images ![Gic Liquid level Controller 4421AD1 , 240 VAC - Image 1](https://m.media-amazon.com/images/I/51aqGITMqhL.jpg) ![Gic Liquid level Controller 4421AD1 , 240 VAC - Image 2](https://m.media-amazon.com/images/I/61fuiSjzHKL.jpg) ![Gic Liquid level Controller 4421AD1 , 240 VAC - Image 3](https://m.media-amazon.com/images/I/310mDR+JJlL.jpg) ![Gic Liquid level Controller 4421AD1 , 240 VAC - Image 4](https://m.media-amazon.com/images/I/41NKzFAfAIL.jpg) ![Gic Liquid level Controller 4421AD1 , 240 VAC - Image 5](https://m.media-amazon.com/images/I/31ckeutQO4L.jpg) ## Questions & Answers **Q: Every now and then the seller marking different MRP -- why ??** A: the manufacturer revises the price of the product at regular interval and depending upon the depletion of stock the sellers are also following the new MRP. This I hope will help you to understand. **Q: What is a contactor? Is it necessary ? I have a starter .** A: if you have starter, contactor is not required **Q: Kya yeh khud bhi kuchh bijali ki khapat karta hai?** A: https://www.youtube.com/watch?v=xpiNAGf3wJ8 pLEASE VIEW THE VIDEO ABOVE **Q: I dont have undergrount water tank i want to start borwell water pump to fill overhead tank 3 probes is ok** A: 3 probes is enough It'll work 6 probes are used for 2 tanks ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good Water Level Controller *by G***A on 22 September 2023* Have been using this WLC for more than2 years. Absolute Marvel. Just fit & forget gadget. Anyone having issues with its function, sure had made wrong connection. A1 & A2 at terminals for auxillary power supply. 18 goes to power input of the coil of contractor. Connect CMN sensors at the bottom of sump & overhead tank. Connect P1 above CMN, just 2-3 inches above the pump foot value. This is dry run level. Position of sensor P2 is critical. Do not connect P2 at the top sump level. Auto run will not function most of the time. Connect P2 at such a height above P1 so that this sump volume is about 1.5 times your overhead tank capacity. I have a overhead tank of 1000 litres & I have fixed P2 about 20 inches above P1 in my sump. This is the optimum position of P2. Connect P3 about 3 inches above overhead tank outlet & P4 at about 3 inches below overhead tank inlet level. Be clear auto run will function only when all the 3 sensors, CMN, P1 & P2 are inside water in the sump. In this condition auto run will function flawlessly. Pump will switch on when water goes below P3 & will be automatically switched off when water level rises above P4. In case water level in sump goes below P1, pump will switch off automatically, giving dry run protection. Once water starts filling the sump, only when the level rises above P2, auto run will resume again. Occasionally, when water level in sump is between P1 & P2 & you want to pump water, go for manual start & pump will switch off when water rises above P4 or goes below P1. Logic of all water level controllers in market is the same. But this one is of industrial quality, ruggedly built with quality electronic components. Make sure the wire from overhead tank to controller is routed in electric pipe & sensors are installed in sump & overhead tank using pipes & cable ties. Then this automation will be truly fit & forget one. This is DIY stuff, but you need time, patience & clarity. Thanks ### ⭐⭐⭐⭐⭐ Excellent *by P***H on 23 November 2025* Excellent. Work good. ### ⭐⭐⭐⭐ Decent Water Level Controller but restarts after every power cut *by J***V on 18 February 2024* Works well after proper installation. 1 star less since it restarts the pump every time after electricity returns after a power cut. Power cuts are quite frequent in our place daily, it ends up running the pump multiple times a day (up to full water level) ## Frequently Bought Together - Gic Liquid Level Controller, Control Water Level Of Tank And Protects Submersible Pumps Against Dry Running And Prevents Overfilling, Stainless Steel Sensor Probe (Controller (4421Ad1)) - amiciSmart Automatic Over/Under Voltage and Over Load Protection (Adjustable Setting) with Auto Re-Connect LED Display Standard Din-Rail Mounted Single Phase 220V, 63A (13.8kW) - ELMEASURE White, 32A Automatic Changeover with Current Limiter, Single Phase ACCL --- ## 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.co.uk/products/109112375-gic-liquid-level-controller-4421ad1-240-vac](https://www.desertcart.co.uk/products/109112375-gic-liquid-level-controller-4421ad1-240-vac) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-07-17*