What is the lead time for orders?

Samples and small quantities ship in 3 days. Bulk orders take 2-4 weeks, while customized products require 3-5 weeks.

Are your products approved by CE/FCC?

Many of our products are CE and FCC approved. Please contact us for specific details regarding your required models.

How do you ship goods?

We ship via express, air, sea, railway, and truck. We recommend the best option based on your required time and cost.

433MHz Waterproof Remote Controller 4channel LED Control Kl238-4

Name: 433MHz Waterproof Remote Controller 4channel LED Control Kl238-4
Brand: Shenzhen Kelvin Electronics Co., Ltd.
SKU: 823475765

Guangdong, ChinaShenzhen Kelvin Electronics Co., Ltd.

US$1.70

20-199 Pieces

US$1.40

200-999 Pieces

US$1.20

1,000+ Pieces

Sample price:US$1.70/piece.Request sample

Product profile

Customization

Available

Application

Automatic Doors, Industrial Machinery, Special Equipment

Battery Type

12V

Model NO.

KL238

Code Type

Learning Code

Color

Black

Frequency

433MHz

Material

Plastic

Transmission Distance

>100m

Type

Button

Universal

Voltage

12V

Battery

12V

Modulation Way

Ask/Ook

Encoding Type

Fixed, Learning Code

Signal Transmission

RF Remote Control

Transport Package

Carton

Specification

55*40*14mm

Trademark

Kelvin

Origin

Guangdong, China

HS Code

8543709990

Production Capacity

100000/Month

Key features

Waterproof Design: Durable construction suitable for outdoor and harsh environments.

Long Transmission Distance: Effective range up to 150 meters depending on conditions.

Universal Compatibility: Works with automatic doors, industrial machinery, and special equipment.

Flexible Frequency Options: Available in 315MHz, 433MHz, 868MHz, or customized license-free bands.

Multiple Coding Types: Supports Fixed Code, Learning Code, and Rolling Code (HCS301/300).

Fast Sample Delivery: Samples and small quantities shipped within 3 days.

OEM/ODM Services: Full customization available from samples, designs, or minor adjustments.

CE and FCC Certified: Many products approved for international safety and compliance standards.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export Experience

Shenzhen Kelvin Electronics Co., Ltd.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 14 years CertifiedNearest Port: Shenzhen PortAverage Response Time: ≤5.84h

AI-Powered supplier vetting

SummaryThe supplier is a manufacturing company located in Shenzhen, specializing in RF technology products with a strong focus on customization and innovation. They hold an ISO9001:2015 certificate and have a robust supplier management system. Their R&D capabilities include providing ODM and OEM services and are supported by qualified engineers. While they lack overseas warehousing and showroom capabilities, they participate in international exhibitions and have an extensive export reach. Quality control processes are in place, ensuring traceability and customer satisfaction.

Supplier typeThe supplier is a manufacturing company located in Longgang District, Shenzhen.

CertificationsThe supplier holds an ISO9001:2015 certificate, indicating compliance with international quality management standards.

After-Sales capabilityR&D engineers provide technical support for after-sales services, indicating a structured approach to customer support.

R&D capabilityThe supplier offers ODM services, has new product development, and provides SDKs, demonstrating a strong innovation capacity.

Production capacityThe supplier operates 2 production lines with a significant annual output of wireless control devices, indicating solid production capability.

Customization capabilityThe supplier provides extensive customization services, including full customization and minor adjustments based on samples and designs.

Client casesThe supplier has experience in RF technology applications for various industries, having attended multiple international exhibitions.

Product Q&A

Q:How long is the transmission distance?

The distance is marked on the product page. KRG series ranges from 30m-300m, and KLR series ranges from 1,000m-31,000m.

Q:Is the antenna important? Can I remove it?

Yes, the antenna is critical for transmitting/receiving radio signals. Removing it significantly shortens the distance and may cause the circuit to burn out.

Q:Can I have a different frequency?

Frequencies are government-controlled. We can produce special frequencies if they are license-free or if you already possess the necessary license.

Q:How long is the battery life?

Battery life depends on power consumption, capacity, and usage. For the KRG series, the battery lasts over 1 year with short pressing 5 times daily.

Q:What coding types are available?

We offer Learning Code (1527) and Rolling Code (HCS301/300) for ASK/OOK products, plus private coding types for FSK, LoRa, and paging systems.