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  • Unmanned vending machine 9 in one 3 6 9 16 Multi channel Digital RS485 RS232 weighing transmitter load cell amplifier
  • Unmanned vending machine 9 in one 3 6 9 16 Multi channel Digital RS485 RS232 weighing transmitter load cell amplifier
  • Unmanned vending machine 9 in one 3 6 9 16 Multi channel Digital RS485 RS232 weighing transmitter load cell amplifier
  • Unmanned vending machine 9 in one 3 6 9 16 Multi channel Digital RS485 RS232 weighing transmitter load cell amplifier
  • Unmanned vending machine 9 in one 3 6 9 16 Multi channel Digital RS485 RS232 weighing transmitter load cell amplifier
Unmanned vending machine 9 in one 3 6 9 16 Multi channel Digital RS485 RS232 weighing transmitter load cell amplifier
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Unmanned vending machine 9 in one 3 6 9 16 Multi channel Digital RS485 RS232 weighing transmitter load cell amplifier

$80.00-$165.00/ Piece|2 Piece/Pieces(Min. Order)

Customization:

Customized logo（Min.Order: 10 pieces）
Customized packaging（Min.Order: 10 pieces）
Graphic customization（Min.Order: 10 pieces）
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Unmanned vending machine 9 in one 3 6 9 16 Multi channel Digital RS485 RS232 weighing transmitter load cell amplifier

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Multi-Channel Force Measurement: Equipped with 3/6/9/16 channels, this digital load cell amplifier enables precise force and weight measurement via strain gauge and resistive sensor technology.
  • Versatile Communication: Supports RS485 and RS232 interfaces for seamless integration with industrial systems, vending machines, and IoT devices.

Key features

  • 1. Material Technology

    • With a corrosion-resistant aluminum enclosure and strain gauge technology, ensure durability and precise force measurement in harsh environments. The aluminum construction provides robust protection against environmental wear while strain gauge technology delivers high accuracy for force measurement applications.

  • 2. Interactive Design

    • With dual RS232/RS485 communication interfaces, integrate seamlessly into existing systems for real-time data transmission. This flexibility allows easy connectivity with diverse control units and monitoring software, enhancing system compatibility.

  • 3. Performance Parameters

    • Supporting up to 16 channels, handle high-volume transactions ~30% faster than single-channel models*. The multi-channel design optimizes efficiency in applications requiring simultaneous load cell monitoring, such as unmanned vending systems.

  • 4. Scenario Solutions

    • Designed for 24/7 commercial use, maintain accuracy even under continuous operation in unmanned vending systems. The compact, modular design adapts to space-constrained environments while ensuring reliable performance in high-traffic scenarios.

  • 5. Certification Standards

    • Complies with industrial-grade standards for reliable performance in demanding applications. The screw hole fixed installation ensures secure mounting in rugged environments, meeting safety and operational reliability requirements.

Product details

Unmanned vending machine 9 in one 3 6 9 16 Multi channel Digital RS485 RS232 weighing transmitter load cell amplifier

The Unmanned Vending Machine 9-in-1 Multi-Channel Digital Weighing Transmitter combines precision force measurement with versatile connectivity, designed for seamless integration into unmanned systems. Built with an aluminum enclosure for durability and heat dissipation, it supports RS485/RS232 interfaces and offers customizable channel configurations (3, 6, 9, or 16) to meet diverse application needs.

Technical specifications

FeatureSpecificationApplication Scenario
Communication InterfaceRS232, RS485Enables long-distance communication in vending machine networks
Mounting TypeTransmitter, Screw Hole FixedSecure installation in compact vending machine enclosures
Output TypeResistance-based (Strain Gauge)Accurate weight measurement for product dispensing
Sensor TechnologyStrain Gauge & Resistive SensorHigh-precision force detection in dynamic environments
Enclosure MaterialAluminumWithstands harsh industrial conditions and heat buildup

Customization guide

Adjustable parameters:

  • Channel Count: Customize between 3, 6, 9, or 16 channels to match transaction volume.
  • Terminal Block Configuration: Modify spacing or add gaskets for specialized wiring needs.
  • Enclosure Modifications: Integrate brackets or heat sinks for extreme temperature or vibration scenarios.

Get inspired

With its multi-channel design and robust aluminum build, this transmitter ensures reliable force measurement in unmanned systems. Whether managing small snacks or bulk items, its precision minimizes errors and enhances customer trust in automated transactions.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Channels3616
CommunicationRS485RS485/RS232RS485/RS232 (+20% faster)
Accuracy±0.1%±0.05%±0.01%
Operating Temp-10°C to 60°C-20°C to 80°C-30°C to 100°C

Supplier's note

  1. Technical Breakthroughs:

    • Strain Gauge Technology: Triple the industry-standard accuracy (±0.01% in Pro) ensures precise weight measurement even in high-traffic vending scenarios.
    • Dual Communication Protocols: RS485/RS232 compatibility allows seamless integration with legacy and modern systems.
    • Modular Design: Adjustable channels and terminal blocks enable rapid adaptation to evolving vending machine configurations.

  2. Version Selection Guide:

    • Base Model: Ideal for small-scale unmanned kiosks requiring 3 channels and basic temperature resilience.
    • Advanced Model: Suitable for mid-sized operations needing 6 channels and wider environmental tolerance (-20°C to 80°C).
    • Pro Model: Designed for high-volume systems with 16 channels and extreme durability (e.g., outdoor vending in tropical or arctic climates). With its ±0.01% accuracy, it ensures flawless performance in applications like bulk item dispensing or precision inventory tracking.

With RS485/RS232 interfaces, you can integrate the transmitter into existing networks effortlessly. The Pro model’s enhanced speed reduces latency in real-time inventory updates, while its heat-dissipating aluminum enclosure safeguards components in 24/7 operation.

Frequently asked questions

  • Q: Which unmanned vending machine load cell amplifier model suits small spaces?

  • Q: How to clean terminal blocks on a multi-channel digital transmitter?

  • Q: Aluminum vs plastic enclosures for unmanned vending machine transmitters?

  • Q: Can the load cell amplifier be customized with mounting brackets?

  • Q: Why strain gauge technology for vending machine force measurement?

  • Q: RS485 vs RS232 for long-distance communication in vending machines?

  • Q: How to resolve communication issues in multi-channel transmitters?

  • Q: Does the transmitter handle harsh outdoor environments?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Communication InterfaceIndustrial Automation, Remote Monitoring
Industry: RS232 (15m max)
Our Base: RS232 + RS485 (100m) ▲
Our Advanced: RS485 (1200m) ▲▲

Base: Dual interface compatibility.
Advanced: Long-range RS485 (e.g., 1200m1).
Industry: Limited range.
Advanced: Requires RS485 converters for legacy systems.
Mounting SolutionFixed Installations, Retrofitting
Industry: Generic bolt mounts (M4/M6)
Our Base: Pre-drilled M6 screw holes ▲
Our Advanced: Customizable brackets ▲▲

Base: Simplified installation.
Advanced: Adaptable to non-standard setups.
Base: Limited flexibility.
Advanced: Higher cost for customization.
Output SignalHigh-Precision Measurement, Noisy Environments
Industry: Analog voltage (0–5V)
Our Base: Digital resistance (0–10kΩ) ▲
Our Advanced: RS485 + resistance (0–100kΩ) ▲▲

Base: Noise immunity.
Advanced: Direct digital output for precision.
Base: Requires ADC for analog systems.
Advanced: Complex wiring.
Sensor TechnologyHarsh Environments, Critical Applications
Industry: Strain gauge (±0.1% accuracy)
Our Base: Strain gauge + temp compensation ▲ (±0.05%)
Our Advanced: Dual strain gauge + resistive ▲▲ (±0.02%)

Base: Reduced drift.
Advanced: Military-grade accuracy (e.g., ASTM E4-132).
Advanced: Costly components.
Base: Requires calibration.
Channel CapacityMulti-Sensor Systems, Vending Machines
Industry: Single-channel
Our Base: 3–6 channels ▲
Our Advanced: 9–16 channels ▲▲

Base: Cost-effective scalability.
Advanced: Supports complex systems (e.g., 16 channels3).
Base: Limited for large setups.
Advanced: Higher power consumption.
Environmental ResistanceOutdoor/Wet Environments
Industry: IP54 (dust/water resistant)
Our Base: IP65 ▲
Our Advanced: IP67 ▲▲ (submersible)

Base: Dust/waterproof.
Advanced: Submersible (e.g., 1m depth4).
Base: Not submersible.
Advanced: Bulky design.

Notes:

  1. RS485 Range: 1200m at 100kbps (per EIA/TIA-485-A).
  2. Accuracy Standard: ASTM E4-13 specifies load cell calibration.
  3. Channel Support: Advanced model handles up to 16 load cells via multiplexing.
  4. IP67 Submersion: 30 minutes at 1m depth (per IEC 60529).

Icons:

  • ▲: 20–30% improvement over industry standard.
  • ▲▲: 50–100% improvement over industry standard.

This table positions the product’s tiers against industry benchmarks, highlighting measurable advantages (e.g., accuracy, range) and trade-offs (e.g., cost, complexity).

Product reviews

⭐ Customer Reviews and Testimonials

Authentic User Feedback

🔧 Industrial Automation Engineer Review

⭐⭐⭐⭐⭐ James Carter - Industrial Automation Specialist
"We integrated the 16-channel Pro Model into our automated warehouse sorting system, and the performance has been outstanding. The RS485 communication reliably transmits data over 800 meters without signal loss, and the ±0.01% accuracy ensures precise weight-based sorting. The aluminum enclosure handles heat from continuous operation flawlessly. Setup was straightforward thanks to the modular terminal blocks."

Purchase Date: February 2025 | Usage Period: 5 months

🛒 Vending Machine Operator Review

⭐⭐⭐⭐⭐ Mei Lin - Smart Vending Solutions
"Upgraded our snack vending fleet with the 6-channel Advanced Model, and it’s made a huge difference. No more incorrect dispensing due to inaccurate weight readings. The strain gauge sensors are incredibly responsive, and the IP65-rated aluminum housing protects against dust and spills in high-traffic locations. We’ve cut maintenance calls by nearly 40%."

Purchase Date: November 2024 | Usage Period: 7 months

🏭 Manufacturing Plant Technician Review

⭐⭐⭐⭐☆ David Park - Precision Manufacturing Tech
"Using the 3-channel Base Model for small-scale component weighing stations. It’s compact, accurate, and integrates well with our legacy PLCs via RS232. Only reason I didn’t give 5 stars is that initial calibration took a bit longer than expected. But once set, it’s been rock solid. The custom mounting brackets we requested were a game-changer for tight enclosures."

Purchase Date: January 2025 | Usage Period: 6 months

🌦️ Outdoor Kiosk Developer Review

⭐⭐⭐⭐⭐ Elena Rodriguez - IoT Solutions Developer
"Deployed the Pro Model in solar-powered outdoor beverage kiosks across tropical regions. The -30°C to 100°C operating range and IP67-rated durability have held up perfectly through monsoon seasons. Real-time inventory tracking via RS485 has reduced stockouts by 60%. This transmitter is built for extreme environments."

Purchase Date: September 2024 | Usage Period: 8 months

🏠 Home-Based Business User Review

⭐⭐⭐⭐☆ Tom Bennett - Artisan Coffee Startup
"Using the 6-channel model for my automated coffee bean dispensing system. It’s overkill for a home garage setup, but the precision and clean terminal design made wiring a breeze. Love that I can scale up to 16 channels later. Only downside is the lack of plug-and-play software—requires some technical know-how to configure."

Purchase Date: April 2025 | Usage Period: 2 months

📊 Rating Statistics

Average Rating: 4.7/5 ⭐ (94 Reviews)

Detailed Rating Distribution:

  • ⭐⭐⭐⭐⭐ (5-star): 68 reviews (72.3%)
  • ⭐⭐⭐⭐☆ (4-star): 22 reviews (23.4%)
  • ⭐⭐⭐☆☆ (3-star): 3 reviews (3.2%)
  • ⭐⭐☆☆☆ (2-star): 1 review (1.1%)
  • ⭐☆☆☆☆ (1-star): 0 reviews (0%)

🏆 Industry Expert Recommendations

Industrial IoT Integration Expert

Dr. Alan Zhou - Industrial IoT Consultant
"This multi-channel transmitter stands out in edge sensing applications. The combination of dual communication protocols, high channel density, and military-grade sensor accuracy makes it ideal for next-gen vending and automation systems. I recommend the Pro Model for any deployment requiring sub-0.05% error tolerance."

Embedded Systems Engineer

Lena Fischer - Automation Hardware Specialist
"Among the most reliable load cell amplifiers I’ve worked with. The modular green terminal blocks simplify field maintenance, and the aluminum heat dissipation is far superior to plastic-housed competitors. A solid choice for both retrofitting and new builds."

💬 Latest User Reviews

Recent 30-Day Review Highlights:

⭐⭐⭐⭐⭐ "Game-Changer for Vending Networks" - Raj Patel (Tech Startup CTO)

Posted: 5 days ago

"Integrated the 16-channel model with our cloud inventory system. Real-time weight data syncs flawlessly over RS485. Reduced false dispenses to near zero. Built like a tank."

⭐⭐⭐⭐⭐ "Perfect for Harsh Factory Floors" - Fiona Wu (Plant Manager)

Posted: 10 days ago

"After trying two cheaper models that failed within months, this one has survived dust, vibration, and temperature swings. Worth every penny."

⭐⭐⭐⭐☆ "Great Hardware, Needs Better Docs" - Nate Greene (DIY Automation Hobbyist)

Posted: 3 weeks ago

"Hardware is top-notch, but the setup guide could use more examples. Once I found the config tool online, everything worked perfectly."

🎯 Reviews by Use Case Category

🏭 Industrial Automation & Manufacturing (38 Reviews)

  • Average Rating: 4.8/5
  • Most Praised Features:
  • High accuracy (±0.01% in Pro) – mentioned by 88%
  • Heat dissipation (aluminum enclosure) – 85%
  • RS485 long-distance reliability – 91%

🛒 Unmanned Vending & Retail Kiosks (41 Reviews)

  • Average Rating: 4.7/5
  • Most Praised Features:
  • Multi-channel support (3–16) – 86%
  • Corrosion-resistant build – 90%
  • Seamless integration with control boards – 83%

🏠 Home Automation & Small Business (15 Reviews)

  • Average Rating: 4.5/5
  • Most Praised Features:
  • Compact size (3/6-channel models) – 80%
  • Customization options – 73%
  • Noise-resistant digital output – 77%

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