Side Mount Float Switch Grommet Water Level Sensor Tank Aquarium Pump
$11.00 Inc. GST
You save (%)
- Description
- Code Examples
- Additional information
- Reviews (0)
Description
🔧 Side Mount Float Switch Grommet Water Level Sensor | AuscomTech
This side mount float switch is a compact and reliable liquid level sensor designed for installation through tank walls using a secure grommet-style fitting.
It detects liquid levels using a floating mechanism that activates an internal switch, allowing it to trigger pumps, alarms, or control systems based on rising or falling fluid levels.
Ideal for tanks, aquariums, reservoirs, and hydroponic systems, this sensor integrates easily with Arduino, ESP32, relay modules, and other control electronics.
⭐ Key Features
- Grommet mounting design – provides a simple and secure push-fit installation without threaded fittings.
- Side mount configuration – perfect for horizontal installation in tanks and containers.
- Reliable float switching – automatically detects high or low liquid levels depending on installation orientation.
- Low power switching – suitable for signal input, relay triggering, and control circuits.
- Durable PP construction – resistant to corrosion and suitable for water-based applications.
- Mercury-free operation – safe mechanical switching design.
📊 Technical Specifications
- Product Type: Side mount float switch
- Mounting Type: Grommet (push-fit)
- Material: PP (Polypropylene)
- Contact Rating: 10W max
- Switching Voltage: 110V DC max
- Switching Current: 0.5A max
- Breakdown Voltage: 220V DC max
- Carry Current: 1A max
- Operating Temperature: -10°C to +60°C
- Function: Liquid level detection
🧩 Typical Applications
- Water tank level monitoring
- Aquarium and fish tank systems
- Hydroponic and irrigation setups
- Sump pump control and protection
- Reservoir level detection
- Liquid level alarms and automation
- DIY electronics and control systems
⚠️ Important Notes
- Designed for low-power switching and signal control applications.
- Use a relay module when switching higher power loads such as pumps.
- Mounting orientation determines normally open or normally closed operation.
- Ensure compatibility with the liquid used before installation.
📦 Package Includes
- 1 × Side mount float switch (grommet type)
🔗 Recommended Accessories (Not Included)
- Relay module – for controlling pumps and valves
- Arduino or ESP32 board – for monitoring and automation
- Waterproof enclosure – protects electronics in humid environments
- Jumper wires or connectors – for quick installation
📌 Code Examples & Usage – Horizontal Side-Mount Float Switch (PP)
📋 Overview
This horizontal side-mount float switch is a simple, reliable liquid level sensor that uses a mechanical float and internal reed switch to detect liquid presence.
It operates as a dry contact (ON/OFF switch) and requires no power, making it ideal for:
-
Water tanks & reservoirs
-
Pump control & protection
-
High / low level alarms
-
PLC digital inputs
-
Arduino, ESP32 & relay control
-
Industrial & DIY automation
The sensor mounts through the side wall of a tank using the supplied finger grommet, making installation quick and compact.
⚙ Key Features
-
Sensor type: Mechanical float switch (reed contact)
-
Mounting: Horizontal side mount
-
Material: PP (polypropylene)
-
Output: Dry contact (NO or NC depending orientation)
-
No power required
-
Suitable for water and compatible liquids
-
Compact, robust design
⚠ IMPORTANT – NO / NC Operation
🚨 This float switch is mechanically reversible.
By flipping the float 180°, you can change its behaviour:
| Orientation | Contact State |
|---|---|
| Float down | Normally Open (NO) |
| Float up | Normally Closed (NC) |
📌 Always test continuity with a multimeter before final installation.
🔌 Wiring Basics
This sensor is simply a two-wire switch.
| Wire | Function |
|---|---|
| Wire 1 | Switch contact |
| Wire 2 | Switch contact |
✔ No polarity
✔ Can be wired like a push-button or limit switch
🔌 PLC Wiring Example (24VDC)
📌 Use internal PLC pull-ups or sinking/sourcing inputs as per your PLC type.
🔌 Relay / Pump Control Example
✔ Commonly used for:
-
Pump start/stop
-
Tank fill control
-
Overflow protection
🔌 Arduino / ESP32 Wiring (Recommended)
Use the microcontroller’s internal pull-up resistor:
| Float Switch | Arduino / ESP32 |
|---|---|
| Wire 1 | GND |
| Wire 2 | Digital input |
🧪 Arduino Example – Detect Water Level
📌 Logic may be inverted depending on float orientation.
🧪 Arduino Example – Pump Protection (Dry Run Prevention)
✔ Works perfectly with your low-level trigger relay boards
🧠 Installation Notes
✔ Install with correct float orientation for desired logic
✔ Ensure free movement of the float
✔ Do not overtighten the mounting nut
✔ Keep clear of tank walls and obstructions
✔ Suitable for clean water and compatible liquids only
🧠 Common Issues & Fixes
| Issue | Cause | Fix |
|---|---|---|
| Always ON | Float reversed | Flip float |
| No switching | Float jammed | Clear obstruction |
| PLC input unstable | No pull-up/down | Enable PLC input bias |
| MCU flicker | Contact bounce | Add small software delay |
Additional information
| Weight | 40 g |
|---|---|
| Dimensions | 160 × 260 × 20 mm |
Only logged in customers who have purchased this product may leave a review.
Reviews
There are no reviews yet.