52mm PP Liquid Water Level Sensor Horizontal Float Switch Down
Compact Polypropylene Float Switch for Arduino and Automation Projects
This 52mm horizontal float switch is a compact and durable sensor designed for accurate liquid level detection in tanks and containers. Made from highquality polypropylene (PP), it is resistant to corrosion, chemicals, and water, making it ideal for longterm use in industrial, household, and agricultural applications[citation:3].
Durable PP Material Corrosionresistant for water and non-corrosive liquids
Easy Horizontal Installation Sidemount design with adjustable NO/NC configuration
Total length is 52mm with operating temperature -10°C to +85°C[citation:3]
Use for Arduino, ESP32, STM32, and Raspberry Pi automation projects[citation:3]
Switch contact rating: ≤0.5A, voltage 0-100V DC/AC[citation:3]
Technical Specifications
| Parameter | Value |
|---|
| Model | Horizontal Float Switch (Down)[citation:3] |
| Material | Polypropylene (PP)[citation:3] |
| Total Length | 52mm[citation:3] |
| Installation | Horizontal side wall mount[citation:3] |
| Contact Type | NO / NC (configurable)[citation:3] |
| Operating Voltage | 0-100V DC/AC[citation:3] |
| Operating Current | ≤0.5A[citation:3] |
| Temperature Range | -10°C to +85°C[citation:3] |
= Key Features =
Chemical Resistant PP body withstands water and noncorrosive liquids[citation:3]
Versatile Output - Can be wired as Normally Open or Normally Closed[citation:3]
Low Power Consumption - Ideal for battery and IoT projects
Compact Design - 52mm length fits tight spaces[citation:3]
Long Service Life - Reliable reed switch mechanism
= Applications =
- Water tank level monitoring[citation:3]
- Automatic pump and valve control[citation:3]
- Smart agriculture irrigation systems[citation:3]
- Aquariums and hydroponics systems[citation:3]
- Household water level alarms[citation:3]
- IoT and automation projects[citation:3]
Reliable Level Detection - Direct control of pumps, valves, or microcontrollers[citation:3]
BeginnerFriendly Simple wiring for DIY and IoT projects[citation:3]
√ Compatible with Arduino, ESP32, STM32, Raspberry Pi[citation:3]
√ Configurable as NO or NC based on wiring[citation:3]
√ Suitable for fresh and salt water applications[citation:4]
Connection and Installation
*Wiring options:*
- Normally Open: Connect circuit to NO configuration
- Normally Closed: Connect circuit to NC configuration
- Works as simple ON/OFF sensor[citation:3]
*Installation tips:*
- Mount horizontally on tank side wall[citation:3]
- Ensure float movement path is clear of obstacles
- Use appropriate sealant for leak-proof installation
Use the built-in float to detect liquid presence or absence[citation:4]
Connect directly to pump or relay for automatic water level control[citation:3]
Do not exceed 0.5A switching current
Not suitable for corrosive chemicals
Troubleshooting
Switch not triggering:
- Verify wiring configuration (NO vs NC)
- Check float movement is not obstructed
- Ensure liquid level reaches activation point
Erratic operation:
- Clean float and stem of debris
- Check for proper mounting orientation
- Verify operating temperature within range
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