Does this work with Arduino?

Yes. Do not do what the user above instructed. This works as a digital switch not a powered switch. Run it from a standard digital pin to ground. digitalRead will come up with a 0 or a 1. Using it with 3.3v and analog input gives you goofy readings and makes the sensor heat-up something awful.

Will this work with the JBJ ato controller?

It should work fine. I am using it in a generic ato.

Can this be used with potable water ? Is it food grade?

Yes, it is completely sealed in plastic. I see no reason for it not to be safe for potable water. I am using it to monitor RO water levels in a storage tank I drink from.

Can you suggest a relay to use with these floats to run a 12v/5A water pump?

I use the twtade ssr-40 and it works great and has an attachment heatsink to prevent overheating. It can handle up to 60VDC @40a. I only have mine opening a 12VDC solenoid for my custom incubator but I'm sure it can handle a water pump. I use the same relay to control 4 heaters to keep it at temperature as well.

6 Pieces Plastic Pp Float Switch Fish Tank Liquid Water

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Description

💧 Stay ahead of the flow with flawless water level sensing!

DURABLE BUILD - Robust PP float and body materials for long-lasting performance
BULK PACK ADVANTAGE - 6 sensors included—perfect for multi-tank monitoring or spares
COMPACT LIGHTWEIGHT - Streamlined 65x22mm size fits seamlessly in any tank setup
VERSATILE INSTALLATION - Easily switch between normally open and closed by inverting float
PRECISION LIQUID LEVEL CONTROL - Reliable sensing for pumps, alarms, and indicators

The DP5200 6-piece float switch set offers precise, reliable liquid level detection with a max 10W contact rating and temperature tolerance from -10°C to 85°C. Crafted from durable polypropylene, each compact sensor features a 39cm cable and can be configured as normally open or closed, making it ideal for automated pump control, alarms, and aquarium monitoring. Perfect for professionals seeking dependable multi-tank solutions.

Specifications

ASIN	B072QCHQ2P
Best Sellers Rank	#54,131 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #8 in Liquid Level Sensors
Date First Available	June 6, 2017
Item Weight	2.5 ounces
Item model number	43237-2
Manufacturer	Anndason
Package Dimensions	5.28 x 3.74 x 1.42 inches

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