which direction is open and which is closed?

I tried to post a photo, but couldnt figure that out. A picture is worth a thousand words but ill try to do it with less words than that. mount the device at the top of the tank, if the tank is full the float is up and the circuit is open...(In my case the alert light is off) . If the water level drops, the float drops and the circuit is closed and my alert light is on

What is the length of the leads on this switch?

I didnt measure the leads, but Id say 8"

what is the "closed" position (aka circuit continuity)?

When the tank is full continuity is open or broken, when the tank is low continuity is closed or made. Travel is aprox. 1 1/4 inch.

Can I use it in a hot water tank?? 203 F

I installed mine in the coolant expansion tank in my car. and it works there, but its only been a week, so I cant say long term

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💧 Elevate your water level control game with DEVMO’s sleek, reliable float switch!

MERCURY FREE SAFETY - Eco-friendly float switch with zero mercury for safe, clean operation
HIGH TEMPERATURE ENDURANCE - Operates reliably up to 125°C, perfect for demanding industrial applications
VERSATILE VERTICAL MOUNTING - Install at tank top or base to monitor rising or falling water levels effortlessly
ROBUST STAINLESS STEEL BUILD - Durable, corrosion-resistant design built to last in harsh environments
PRECISION LIQUID LEVEL DETECTION - Compact 45mm sensing distance for accurate water level control

The DEVMO Mini Indicator Vertical Water Level Sensor is a compact, mercury-free stainless steel float switch designed for precise liquid level detection. With a 45mm sensing distance, 100mA current rating, and a max temperature tolerance of 125°C, it offers versatile vertical mounting options for top or base installation. Ideal for electronic, chemical, water treatment, and drainage systems, this lightweight, durable sensor ensures high reliability and easy installation in any environment.

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Brand	DEVMO
Material	Stainless Steel
Item Weight	0.06 Kilograms
Style	Water Level Sensor
Current Rating	100 Milliamps
Maximum Supply Voltage	1E+2 Volts (DC)
Mounting Type	Surface Mount
Output Type	Push-Pull
Sensing Distance	45 Millimetres
Specific Uses For Product	electronic, electrical, chemical, water treatment, and drainage applications for level control and alarm
Upper Temperature Rating	125 Degrees Celsius
UPC	796753378526
Manufacturer	DEVMO
Model number	WS-xxxx
Item Weight	59 g
Package Dimensions	10.01 x 9.09 x 3.4 cm; 59 g
Item model number	WS-xxxx
Are batteries included?	No

DEVMO Mini Indicator Vertical Water Level Sensor Stainless Steel 45mm Float Switch

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