Is the frequency customizable?

Yes, the working frequency is customizable.

What certifications does the product have?

The product has ISO, RoHS, and CE certifications.

What are the dimensions and weight of the device?

The dimensions are 118mm*92mm*18mm and the weight is less than 0.6Kg.

20dBm GSM 900MHz Cell Phone Amplifier Cellular Repeater Mobile Signal Booster

Name: 20dBm GSM 900MHz Cell Phone Amplifier Cellular Repeater Mobile Signal Booster
Brand: Shenzhen Greetwin Telecom Co., Ltd
SKU: 1966289521

Guangdong, ChinaShenzhen Greetwin Telecom Co., Ltd

US$46.60-49.00

1 Piece

Sample price:US$67.90/piece.Request sample

Product profile

Customization

Available

Type

Signal Repeater

Transmission Medium

Wireless

Model NO.

GW-20G-V

Standard

Lightning Protection

With Lightning Protection

Certification

ISO, RoHS, CE

Condition

New

Frequency: 900mhzhz

Wide Band

Application

Home, Office

Product Name

Cell Phone Signal Booster

Material

Aluminum

Colour

Silver

Gain

70dB

Size

118mm *91mm*18mm

Transport Package

Neutral Packing

Specification

CE, RoHS

Trademark

Greetwin

Origin

Shenzhen

HS Code

8543709200

Production Capacity

2, 000PCS/Month

Key features

High Gain Performance: Provides 75dB gain with 23dBm output power for strong signal amplification.

Wide Frequency Support: Supports GSM 900MHz, LTE 700/800/1800/2600MHz, and other single bands.

Customizable Frequency: Working frequency is customizable to meet specific network requirements.

Robust Build Quality: Aluminum alloy housing with lightning protection and ISO, RoHS, CE certifications.

Versatile Power Supply: Power supply is customizable, supporting AC100-240V or DC9V/3A options.

Compact Dimensions: Small size of 118mm*92mm*18mm and weight under 0.6kg for easy installation.

Professional Support: Includes detailed troubleshooting guides for installation and stability issues.

Company profile

High Repeat Buyers ChoiceYears of Export Experience3D Software DesignR&D Capabilities

Shenzhen Greetwin Telecom Co., Ltd

Guangdong, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2009-08-01Nearest Port: ShenzhenAverage Response Time: ≤5.34hTerms of Payment: LC, T/T, PayPal, etc.International Commercial Terms(Incoterms): FOB, CIF, EXW, Others

AI-Powered supplier vetting

SummaryThe supplier is identified as a manufacturer with three production lines and stated output of mobile signal boosters and signal jammers. It provides broad customization, ODM, and OEM services, including OEM support for recognized brands, and reports product development during the past year. Its business scope covers communication, security, electronic, and related equipment, with import and export permitted. Production and export capabilities are documented, including markets across multiple regions and a stated off-peak lead time within 15 working days. Service procedures, corrective actions, complaint handling, and finished-product inspection procedures are documented and followed. However, the supplier reports no available SDK, no in-stock service, and no overseas warehouse or showroom. The provided information does not establish certifications, financial strength, or specific customer cases.

Supplier typeThe supplier is explicitly classified as a manufacturer. Its described offerings cover manufacturing capacity, quality control, R&D, export trade, and related capabilities, supporting a direct manufacturing profile.

After-Sales capabilityThe supplier has written procedures and followed records for service assessment, corrective and preventive actions, and customer complaint handling. However, it reports no in-stock service capacity, overseas warehouse, or overseas showroom, indicating procedural service capability but limited stated overseas support infrastructure.

R&D capabilityThe supplier reports new products during the past year, offers ODM services, and supports customization from samples and designs. It does not have an available SDK, which limits the documented software-development interface capability, but this alone does not negate the stated product R&D evidence.

Production capacityThe supplier is a manufacturer operating three production lines and reports annual production quantities of 2,000,000 mobile signal boosters and 2,000,000 signal jammers, with a stated off-peak lead time within 15 working days. It also has valid manufacturing-capacity contracts with each associated subcontractor, although no in-stock capacity is available.

Customization capabilityBoth slices explicitly list customization from samples, designs, full customization, minor customization, and flexible customization. The supplier also reports ODM availability, providing direct evidence of broad customization capability.

Product Q&A

Q:Why is there still no signal after installing the equipment?

Check the power on booster and power supply. Check the connector of outdoor antenna is tight or not. Check the connectors of RF cable are tight or not. Check the outdoor signal is strong enough or not. Check to make sure the antenna is installed correctly. Check the connector of indoor antenna is tight or not. Check the cable type is suitable or not.

Q:Why the signal strength is too weak on the edge of area?

Check the outdoor signal and antenna direction. Check booster is full gain or not. Check all of the connectors are tight. Change the location of outdoor/indoor antenna. Check the cable type is suitable or not. Deploy more indoor antennas.

Q:After running booster, why the signals are not stable?

Checking the distance between donor antenna and server antenna are too close to each other? Check LED of booster to make sure alarms are green. Checking the signals from donor antenna whether to be stable or not? Connect the system again if it is incorrect connection.

Q:Why the booster power LED is not bright?

Checking the input AC power range indicated on power adapter whether is corresponding to the local power system. Checking the power adapter whether connect the equipment correctly and stably or not. Checking the power adapter whether damage or not. To test output voltage whether be corresponding to that indicated onpower adapter or not by multimeter.

Q:What is the gain and output power of this booster?

The gain is 75dB and the output power is 23dBm.