What firmware version is required for binding?

The receiver must be version V3.0.0 to V3.5.0 to match the factory firmware of the ELRS high-frequency head.

What is the input voltage range?

The module accepts an input voltage of 5V to 12V, suitable for 2S battery configurations.

Does the module support WiFi updates?

Yes, the module supports WiFi updates for firmware upgrades directly through the wireless interface.

990MHz Micro Tx Module for Fpv Drone Long Range Transmitter Module

Name: Expresslrs Radiomaster Tx16s Elrs 433MHz 500/360/720/750/915/990MHz Micro Tx Module for Fpv Drone Long Range Transmitter Module
Brand: Shenzhen Xingkai Technology Co., Ltd
SKU: 2210668515

Guangdong, ChinaShenzhen Xingkai Technology Co., Ltd

US$45.83

1 Piece

Sample price:US$45.83/piece.Request sample

Product profile

Customization

Available

Transport Package

Carton

Specification

6*5*5

Model NO.

ELRS Transmitter Module

Trademark

Xingkaitech

Origin

China

Production Capacity

50000piece/Year

Key features

Multi-Band Frequency Support: Supports 360MHz to 2.4GHz including 433MHz, 915MHz, and 2.4GHz for global compatibility.

Configurable Output Power: Power adjustable via LUA script from 100mW up to 2000mW for extended range.

High Refresh Rate: Refresh rates selectable at 25Hz, 50Hz, 100Hz, and 200Hz for low latency control.

Open Source ExpressLRS Protocol: Built on open-source ExpressLRS for stable connection and long-range performance.

ESP32 and SX1276 Chipset: Powered by ESP32+SX1276 main control with ESP8285 backpack chip for reliability.

CRSF Protocol Compatibility: Natively supports Crossfire Serial Data Protocol (CRSF) for JR interface remotes.

WiFi Firmware Update: Enables wireless firmware updates via WiFi for easy maintenance and upgrades.

Wide Voltage Input: Accepts input voltage from 5V to 12V (2S) for flexible power supply options.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceCooperated with Fortune 500Exhibition Experience

Shenzhen Xingkai Technology Co., Ltd

Guangdong, China

Business Type: Manufacturer/FactoryExport Year: 2016-05-20Nearest Port: Shenzhen, HKAverage Response Time: ≤6.55hTerms of Payment: T/T, Western UnionInternational Commercial Terms(Incoterms): FOB, EXW, CIF

AI-Powered supplier vetting

SummaryThe supplier is identified as a Shenzhen-based manufacturing factory in the manufacturing industry. It demonstrates broad customization, R&D, 3D design, SDK, ODM, and OEM capabilities, with new products reported in the past year. Quality assurance is stated, and finished-product inspection instructions are uniformly followed. However, several service-control procedures lack written records, there is no approved supplier list, and no valid manufacturing-capacity contract with associated subcontractors. The supplier has inventory capability and reported lead times within 15 workdays in both peak and off-season periods, but lacks overseas warehouses, showrooms, agents, or branches. Financial information is represented by year labels only, without sufficient evidence to assess financial credibility. No certification holdings or specific customer cases are provided.

Supplier typeThe supplier is classified as a combined company and a factory located in Bao’an District, Shenzhen, with associated companies in the manufacturing industry. This directly supports its identity as a manufacturing-oriented supplier rather than a purely trading entity.

R&D capabilityThe supplier reports professional technical R&D capability, available SDK support, new products within the past year, and ODM services. These stated capabilities provide explicit evidence of active product-development and technical-support capacity.

Production capacityThe supplier is a manufacturing factory, reports standardized and uniformly followed finished-product inspection instructions, has in-stock capability, and states lead times within 15 workdays in both peak and off-season periods. However, it has no valid contract with associated subcontractors, leaving subcontracted manufacturing governance as a documented weakness.

Customization capabilityThe supplier offers customization from samples and designs, full, minor, and flexible customization, as well as 3D software design, ODM, and OEM services. The consistency of these capabilities across the slices provides explicit evidence of broad customization support.

Product Q&A

Q:What frequency bands does this module support?

It supports multiple bands including 360, 400, 433, 500, 530, 560, 720, 750, 868, 915, 950, 990 MHz, and 2.4 GHz.

Q:How can I adjust the transmission power?

Power settings are configurable via LUA script, allowing selection between 100mW, 250mW, 500mW, 1000mW, and 2000mW.

Q:What is the refresh rate of the module?

The refresh rate is adjustable and supports 25Hz, 50Hz, 100Hz, and 200Hz options.

Q:Which remote controls are compatible with this module?

It is compatible with all remote controls using the JR interface that support CRSF signal output, such as OpenTX systems.

Q:How do I configure the module using LUA scripts?

Copy the ELRS.lua script to the remote's SD card under Scripts/Tools, then run it via the SYS or MENU button to adjust parameters.

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Expresslrs Radiomaster Tx16s Elrs 433MHz 500/360/720/750/915/990MHz Micro Tx Module for Fpv Drone Long Range Transmitter Module