SKU: 75197598996

5Pcs 2 Channel Relay Module SMS GSM Remote Control Switch SIM800C STM32F103CBT6 for Greenhouse Oxygen Pump Smart H

Name: 5Pcs 2 Channel Relay Module SMS GSM Remote Control Switch SIM800C STM32F103CBT6 for Greenhouse Oxygen Pump Smart H
Brand: fr
SKU: 75197598996
Price: 109.89 USD
Availability: InStock
Rating: 4.5463000000000005 (1489 reviews)

$98.90 $109.89

Save 10%

No.2 Bestseller on fr >

Pay in installments of $27.47 with , and

Shipping Estimate
USA

USA

CAN

Ships within 48 hours · Estimated delivery Jun 12 - Jun 17

Description

5Pcs 2 Channel Relay Module SMS GSM Remote Control Switch SIM800C STM32F103CBT6 for Greenhouse Oxygen Pump Smart H5Pcs 2 Channel Relay Module SMS GSM Remote Control Switch SIM800C STM32F103CBT6 for Greenhouse Oxygen Pump FZ3064 Package List: 5 X 2 Channel Relay Module SMS GSM Remote Control Switch SIM800C STM32F103CBT6 Use process 1. Insert SIM card 2. Connect the controlled equipment 3. Connect power supply 4. Waiting for equipment to start ready 5. Change the Authorization number (if the device does not have the correct number) 6. Send command to control the

Shipping Notes

Free Standard Shipping on $100+ Orders to the USA.
Except Preorder products are shipped in 48 hours.
Delivery to the USA:

Standard Shipping : 3-10 business days

If time is of the essence, please consider selecting expedited delivery for faster service.

Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
Final sale items are not eligible for returns or exchanges.
To process your return/exchange, please contact us at [email protected]
Please click here for more details>>> Return & Exchange Policy

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

Best in 7 days

Ethernet Control Module Lan Wan Network Web Server Control Module RJ45 Port And 8 Channel Relay Control Module

US$ 35.75

Sold : Login>>

Best in 7 days

50m HD 1080P HDMI Extender RJ45 1x1 Splitter HDMI sender&receiver HDMI cable with Cat6 RJ45 ethernet cable for PC TV HD60A

US$ 25.79

Sold : Login>>

Best in 7 days

Ethernet Control Module Lan Wan Network Web Server RJ45 Port 16 Channel Relay Is Ethernet controller board.RJ45 interface

US$ 42.57

Sold : Login>>

Best in 7 days

Zymox Funky Paws - 3.2 oz. tube

US$ 13.99

Sold : Login>>

Best in 7 days

Free shiiping 1000PCS 3*6*2.5H SMD 2P Touch Micro Switch 3X6X2.5mm 2Pin Push Button Switch for Car Remote Control LCD

US$ 25.33

Sold : Login>>

Sort

Product Reviews

Verified Purchase

Natrona Heights, US

★★★★★ 5

LOVE THEM!!

Size: Small, Color: (001) Black / Black / Castlerock

LOVE! These socks are so comfortable! I wear a 5 in women's and a 3 in big kid shoes. The small fit me perfectly. I see where some say they run small but I can't say that was an issue for me. They are "snug" but thats what you want with a no show sock. I feel they have support vs the ones i used to buy at Walmart. They are very soft! I am actually buying more today and throwing my other ones in the trash!

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on February 18, 2026

Verified Purchase

Lucy Mejia

San Leandro, US

★★★★★ 5

So will not write down your foot

Size: Medium, Color: (001) Black / Black / Castlerock

I love these socks. They have a little bit of gel on the top of the heel for support in your tennis shoes and so your socks don’t write down. Very good quality.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on May 6, 2026

Verified Purchase

Twins9

Dallas, US

★★★★★ 5

Comfy and Stay Put

Size: Medium, Color: (002) Black / Black / Halo Gray

These socks are honestly great. They’re super thin and light, so once you have them on, you kind of forget they’re even there. No bulky feeling in your shoes at all. The best part is they actually stay on. I hate no-show socks that slide down after five minutes, and these don’t do that. The little grip on the heel really works, so you’re not constantly adjusting them all day. They’re breathable too, which is nice if your feet run warm. They dry fast and don’t get that gross sweaty feeling. And there’s no annoying seam on the toe, so nothing rubs or feels uncomfortable. Basically, they’re just comfy, stay put, and don’t cause problems — which is all I want from socks.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on January 16, 2026

Verified Purchase

swwkennyg

Dallas, US

★★★★★ 5

Perfect sucks

Size: Medium, Color: (001) Black / Black / Castlerock

Wonderful socks . The weight is perfect !! These do not slip when in a shoe they stay out !!

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on April 14, 2026

Verified Purchase

Monica Alzate

Belleville, US

★★★★★ 4

Amazing but quality changed

Size: Large, Color: (002) Black / Black / Halo Gray

Love these socks so much, been buying them for about 4 years now!! Not giving them 5 stars anymore because the quality is different and not as good, durable and thick as before.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on July 10, 2025