Does it support different GSM bands?

Yes, it is compatible with 850, 900, 1800, and 1900MHz GSM bands.

Can I set a password for security?

Yes, an optional password can be set to keep the system in a safe operating mode.

Double Big Power Output GSM Relay Remote Controller

Name: Double Big Power Output GSM Relay Remote Controller
Brand: Shanghai Wafer Microelectronics Co., Ltd.
SKU: 753001005

Shanghai, ChinaShanghai Wafer Microelectronics Co., Ltd.

US$100.00

1-9 Sets

US$55.00

10+ Sets

Product profile

Application

Automatic Doors

Battery Type

Aaa Battery

Certification

Model NO.

GSM-CTL

Material

Plastic

Transmission Distance

>100m

Type

GSM

Universal

Voltage

12V

Power Supply

DC12V

GSM Band

850/900/1800/1900MHz

Output

Double Relay Output

Output Rating

30A/220V

Box Type

Water Proof Box

Signal Transmission

RF Remote Control

Transport Package

Paper Carton

Specification

Trademark

WAFER

Origin

Shanghai

Production Capacity

10000

Key features

Dual Channel High Power Output: Features 2 channels with 30A/220V relay contacts for heavy-duty control.

GSM Network Control: Connects to GSM cell networks for remote operation via calls or SMS.

Waterproof Enclosure: Housed in a durable waterproof box suitable for outdoor environments.

Universal GSM Compatibility: Supports 850/900/1800/1900MHz bands for global mobile network access.

Low Power Consumption: Maintains standby power under 10mA for energy efficiency.

Call Rejection Mode: First relay activates by rejecting incoming calls without answering.

SMS Remote Operation: Other relays can be switched on or off via text messages.

Power Failure Memory: Retains relay status and settings after power interruption.

Company profile

Shanghai Wafer Microelectronics Co., Ltd.

Shanghai, China

Business Type: Manufacturer/Factory, Trading CompanyAverage Response Time: >24h

AI-Powered supplier vetting

SummaryShanghai Wafer Microelectronics Co., Ltd. is a China-based electrical and electronics supplier headquartered in Shanghai. The provided records identify it as both a trading company and manufacturer/factory, while another record classifies the company type as a trading company. Its stated product scope includes coin acceptors and selectors, vending-machine control boards and accessories, GSM management and monitoring units, automatic-door controllers, sensors, and related systems. The supplier claims advanced testing equipment, strict quality-assurance systems, sales coverage, software and electrical-system expertise, and customers or markets across multiple countries and regions. However, the evidence does not confirm certifications, financial credibility, dedicated after-sales processes, factory scale, or formal customization services.

Supplier typeThe supplier is identified as a trading company in one record and as both a trading company and manufacturer/factory in another. This indicates a mixed commercial and manufacturing profile, but the available information does not establish the relative extent of either activity.

R&D capabilityThe supplier describes multiple electronic and GSM products, including vending-machine management units, remote controllers, monitoring systems, sensor-based applications, software technology, and high-tech electrical-system design. This demonstrates a broad technology-oriented product scope, although no R&D metrics, patents, or independently verified innovation results are provided.

Production capacityThe supplier is listed as a manufacturer/factory and states that it manufactures coin acceptors, control boards, GSM units, sensors, and related electronic products. Its claimed testing equipment and product breadth support production capability, but no factory capacity, equipment list, workforce size, or production-volume evidence is available.

Client casesThe supplier states that its clients are located in Mainland China and several overseas countries and regions, including Singapore, Europe, Taiwan Area, South Korea, India, Malaysia, Australia, and South Africa. These are geographic customer claims rather than named customer cases, project references, or documented performance examples.