Photoelectric Tripwire Sensor 20m PR18S-TM20DPO - Emitter Receiver Pair

Photoelectric Tripwire Sensor 20m PR18S-TM20DPO - Emitter Receiver Pair

Marsoni

M251S

$89.00

Get it in 3 business days with 1 day shipping. Friday, May 29

Photoelectric Tripwire Sensor 20m PR18S-TM20DPO - Emitter Receiver PairPhotoelectric Tripwire Sensor 20m PR18S TM20DPO Emitter Receiver Pair The Lanbao PR18S TM20DPO uses the most reliable and accurate style of photoelectric sensing which is the through beam sensor. The sensor comes with a pair of an emitter and a receiver. The emitter provides a constant invisible IR (infrared) beam of light to the receiver and detection occurs when an object passing between the two breaks the beam. The photodetection range of the PR18S

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I previously bought a similar pair of pillows from Sleep Innovations, but they are now either out of stock or unavailable. This new brand is a bit softer and more comfortable than the original pair. It's good for sleeping on my side or my back. The pillow cradles and supports the head and neck in a more contoured way than some harder pillows. The price is reasonable. The only difference from Sleep Innovations is that this pillow does not have a zip cover. So there is no way to wash the exterior. I suppose that one could buy a zip cover for it at extra cost.

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Reviewed in the United States on December 22, 2025

Verified Purchase

Natalie W

Cuba, US

★★★★★ 5

Side sleepers rejoice!

Size: Queen Size: 27.6"L x 15.7"W soft, Color: White

I have spent hundreds of dollars on pillows. I am primarily a side sleeper and every few years I find myself waking up with a "crick" in my neck accompanied by pain and tension. I have had this pillow for only two nights and I am leaving a positive review. It is firmer than one would expect based on first appearance and the "press" test. The surface stays cool and I can sleep any which way and I am still comfortable. Definitely recommend!

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Reviewed in the United States on March 1, 2026

Verified Purchase

Gloria

New York, US

★★★★★ 4

Too Soft for Him, Just Right for Me

Size: Queen Size: 27.6"L x 15.7"W soft, Color: White

My husband purchased this for himself but found it to be too soft for his preference. I decided to try it, and it worked well for me. While I agree it’s not as firm as either of us typically like, it still provided adequate support, and the shape retention held up nicely. Overall, it wasn’t a match for him, but it worked just fine for my needs.

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Reviewed in the United States on January 29, 2026

Verified Purchase

Katie Atwood

Whiting, US

★★★★★ 5

Yes

Size: Queen Size: 27.6"L x 15.7"W soft, Color: White

Great for a side sleeper. Firm enough that it doesn’t collapse but soft and cool

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Reviewed in the United States on April 1, 2026

Verified Purchase

Kindle Customer

Omaha, US

★★★★★ 5

Love this pillow!

Size: Queen Size: 27.6"L x 15.7"W soft, Color: White

I sleep on my side and this pillow is great! I also enjoy the cooling aspect. I forgot my pillow at a hotel and had another one ordered before I got home.

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Reviewed in the United States on May 23, 2026