--- product_id: 375753287 title: "6 Pieces Black Water Level Sensor Aquarium Tank Side Mounted Horizontal Liquid Float Switch" brand: "anndason" price: "$57.90" currency: USD in_stock: true reviews_count: 5 category: "Anndason" url: https://www.desertcart.us/products/375753287-6-pieces-black-water-level-sensor-aquarium-tank-side-mounted store_origin: US region: United States of America --- # Max Switching Voltage 100V DC Convertible NO/NC float switch Operates -10°C to +85°C 6 Pieces Black Water Level Sensor Aquarium Tank Side Mounted Horizontal Liquid Float Switch **Brand:** anndason **Price:** $57.90 **Availability:** ✅ In Stock ## Summary > 💧 Stay ahead of the flow with smart, reliable water level sensing! ## Quick Answers - **What is this?** 6 Pieces Black Water Level Sensor Aquarium Tank Side Mounted Horizontal Liquid Float Switch by anndason - **How much does it cost?** $57.90 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/375753287-6-pieces-black-water-level-sensor-aquarium-tank-side-mounted) ## Best For - anndason enthusiasts ## Why This Product - Trusted anndason brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Multi-Pack Convenience:** Includes 6 sensors to cover multiple tanks or backup replacements—never run dry on control. - • **Versatile Compatibility:** Works seamlessly with Arduino and other microcontrollers for smart home or hydroponic setups. - • **Durable Temperature Range:** Reliable performance from freezing cold to hot environments (-10°C to 85°C). - • **Compact & Lightweight Design:** Sleek black float switch with a minimal 24g weight, perfect for discreet installation. - • **Precision Liquid Level Detection:** Accurately senses water levels to automate your tank management. ## Overview This 6-piece set of black plastic float switches offers precise liquid level detection with a max switching voltage of 100V DC and current up to 0.5A. Designed for side mounting in aquarium or hydroponic tanks, each sensor operates reliably between -10°C and 85°C. Easily convertible between normally open and normally closed states, these compact sensors integrate effortlessly with Arduino and similar controllers for automated pump or alarm activation. Ideal for professionals seeking smart, scalable water management solutions. ## Description Material: Plastic Color :Black Features: 1.The float switch is a device used to sense the level of liquid within a tank. 2.The switch may actuate a pump, an indicator, an alarm, or other device. 3.It can be easily converted from normally open to normally close by invertin the float. Please Note: because the current that the switch can carry is much little(0.5A), you must use a relay or contactor when it is connected by a load, relay and contactor are not included here. Package Content : 6 x Water Level Sensor Review: un poco de tiempo para recibirlo pero dentro del tiempo prometido - Muy buenos, hasta el momento sin fallas Review: Works great - if you use it correctly ## Features - Color : Black;Net Weight : 24g;Package Content : 6 x Water Level Sensor - Max Contact Rating : 10W;Max Switching Voltage : 100V DC - Max Switching Current : 0.5A;Max Breakdown Voltage : 220V DC;Max Carry Current : 1.0A;Max Contact Resistance : 100m Ohm - Temperature Rating : -10 ~ +85 C;Float Ball Material : P.P;Float Body Material : P.P;Float Ball Size(Approx) : 2.35 x 1.7cm (L*D) - Thread Dia(Approx) : 1.54cm / 0.6";Hex Head Size(Approx) : 2.5cm / 1";Body Total Length : 8.8cm / 3.5";Cable Length : 40cm / 15.8" ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B071ZG4Y34 | | Batteries Required? | No | | Batteries included? | No | | Colour | Black | | Customer Reviews | 4.5 4.5 out of 5 stars (208) | | Date First Available | 23 May 2017 | | Item Package Quantity | 6 | | Item Weight | 150 g | | Item model number | 43237-2 | | Manufacturer | Anndason | | Material | Plastic | | Measurement System | Inch | | Part number | 43237-2 | | Product Dimensions | 8.38 x 1.52 x 8.38 cm; 150.25 g | | Size | Style1 | | Style | Style1 | ## Images ![6 Pieces Black Water Level Sensor Aquarium Tank Side Mounted Horizontal Liquid Float Switch - Image 1](https://m.media-amazon.com/images/I/817pEB1kO6L.jpg) ![6 Pieces Black Water Level Sensor Aquarium Tank Side Mounted Horizontal Liquid Float Switch - Image 2](https://m.media-amazon.com/images/I/61epBjil28L.jpg) ![6 Pieces Black Water Level Sensor Aquarium Tank Side Mounted Horizontal Liquid Float Switch - Image 3](https://m.media-amazon.com/images/I/618QgOikr2L.jpg) ![6 Pieces Black Water Level Sensor Aquarium Tank Side Mounted Horizontal Liquid Float Switch - Image 4](https://m.media-amazon.com/images/I/612cqfXCBhL.jpg) ## Questions & Answers **Q: What is the diameter of the white-colored ring? I need to know what size hole to drill.** A: The diameter of the threaded portion that is a part of the sensor is 16mm (<5/8"). The white soft plastic ring you refer to is 18mm diameter (<3/4"). The flange on that white plastic ring is 26mm (~1 1/8") diameter. Hope that helps. **Q: What is the thread pitch on these?** A: I don't know the thread. It comes with its own nut. **Q: Does this "Switch" contain physical contacts that open and close or is it some type of transistor?** A: This unit is an enclosed switch with two wires coming out. It can be installed to make/break contact in a fluid. I use it for water. When installed in one direction, it makes contact when full; when installed the other direction, it makes contact when empty. Thus, I have one switch at the top of a container collecting water to trigger when it is full; the other switch is at the bottom to trigger when it is empty. **Q: Will these work under water?** A: Yes, that is how they work. In this installation the circuit is closed until the water is high enough to open it. As the water rises the float goes up, opening the circuit. When the circuit is closed, power goes to a 12Volt solenoid that allows water from an RO/DI unit to flow into the holding tank. ## Customer Reviews ### ⭐⭐⭐⭐⭐ un poco de tiempo para recibirlo pero dentro del tiempo prometido *by V***Z on 21 March 2023* Muy buenos, hasta el momento sin fallas ### ⭐⭐⭐⭐⭐ Works great - if you use it correctly *by C***N on 24 February 2022* ### ⭐⭐⭐⭐⭐ Floats my boat. *by S***D on 23 December 2025* ## Frequently Bought Together - Anndason 6 Pieces Black Water Level Sensor Aquarium Tank Side Mounted Horizontal Liquid Float Switch - HiLetgo 2pcs Water Pump 240L/H DC 12V 4.2W Micro Brushless Pump 3M Pumping Head Ultra Quiet Water Pump for Pool Aquarium Fish Tank - Liyafy 5 Pcs Right Angle White Plastic PP Float Switch Fish Tank Liquid Water Level Control Sensor XSL-3508-P --- ## 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.us/products/375753287-6-pieces-black-water-level-sensor-aquarium-tank-side-mounted](https://www.desertcart.us/products/375753287-6-pieces-black-water-level-sensor-aquarium-tank-side-mounted) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-17*