Can these be autoclaved?

I would have to assume so. They’re scientific instruments. Generally, with a few exceptions, there designed to be regularly sterilized. I regularly send mine through a pressure cooker at 15 PSI in liquid cultures

Could these be used with a sensor for an alarm system (Simplisafe)? I have double hung windows so need a slim magnet to put opposite the sensor. Thx

Probably, but I suspect it would be much easier to use one of these that's the size you want: https://www.amazon.com/s?k=neodymium+disc+magnets&crid=3RBE9SKKGYW9W&sprefix=Neodyn%2Caps%2C235&ref=nb_sb_ss_ts-doa-p_5_6

is there any possibilities that these could degrade and leak into the water? any easy way to see it? thanks

There is nothing to leak. Inside is a solid magnet. It's possible that after using them a long time, friction could wear out the plastic coating, but that will probably take years and you'll see it slowly degrading. Just take a quick glance before you use them and if they look like they are in good condition, they are.

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Weewooday 8-Piece 30 mm/ 1.18 Inch PTFE Magnetic Stirrer Mixer, White Color, Stir Rod Magnetic, Laboratory Bar, Stir Plate Magnet

Weewooday 8-Piece 30 mm/ 1.18 Inch PTFE Magnetic Stirrer Mixer, White Color, Stir Rod Magnetic, Laboratory Bar, Stir Plate Magnet

Product ID: 294677349

Details

Brand
Weewooday
Colour
white
Material
and steel
Product dimensions
30L x 30W x
Shape
Cylindrical

🔥Heat-resistant PTFE coating

🧲High-strength magnetic core

⚙️Smooth, burr-free rotation

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€ 32.65

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Description

🧪 Stir up success with precision and power!

BULK PACK ADVANTAGE - 8-pack ensures you never run out during critical experiments or batch processes.
VERSATILE LAB ESSENTIAL - Compatible with all standard magnetic stirrers—perfect for research, academia, and industry.
PRECISION MAGNETIC POWER - Engineered with premium magnetic steel for stable, wobble-free stirring every time.
SEAMLESS SMOOTH ROTATION - Cylindrical, burr-free design minimizes friction for consistent, efficient mixing.
HEAT CORROSION RESILIENCE - PTFE material endures high temperatures and harsh chemicals without degradation.

The Weewooday 8-Piece PTFE Magnetic Stirrer Set features 30 mm cylindrical bars crafted from durable PTFE and high-quality magnetic steel. Designed for high-temperature resistance and smooth, stable rotation, these stir bars are ideal for scientific research, industrial labs, and academic settings. Compatible with most magnetic stirrers, this 8-pack offers reliable, corrosion-resistant mixing performance to keep your experiments flowing flawlessly.

Specifications

ASIN	B08L3KXRCB
Brand Name	Weewooday
Color	white
Customer Reviews	4.7 4.7 out of 5 stars (742)
Item Dimensions L x W x Thickness	30L x 30W x 30Th millimeters
Item Thickness	30 Millimeters
Manufacturer	Weewooday
Material Type	Polytetrafluoroethylene and steel
Model Number	Weewooday-PTFE Magnetic Stirrer-01
Number of Pieces	8
Part Number	Weewooday-PTFE Magnetic Stirrer-01
Shape	Cylindrical
Unit Count	8 Count

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