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Home Product eSMARTO4M Smart Motor Protector - Thermal Overload Relay for Pumps & Compressors
The Hongji eSMART04M is a rugged resistive HMI

eSMARTO4M Smart Motor Protector - Thermal Overload Relay for Pumps & Compressors

eSMARTO4M sensor
SMART04M controller
O4M IoT module
eSMARTO4M
The eSMARTO4M sensor integrates with the SMART04M controller and O4M IoT module for seamless smart automation connectivity, enabling advanced data monitoring and remote control capabilities.
Categories:Automation
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Product Description

The eSMARTO4M sensor is a versatile industrial-grade device integrating the SMART04M controller and O4M IoT module, designed for real-time monitoring and automation. It features 4 analog/digital inputs, 2 configurable outputs, and supports direct connectivity with up to 8 peripheral modules via modular expansion ports. Equipped with Wi-Fi, Bluetooth, and LoRaWAN interfaces, the system operates at 12-24V DC within a -20°C to 60°C temperature range, suitable for manufacturing, logistics, and energy management. Its compact design includes a 2.4-inch LCD screen for local diagnostics and offers a 10-meter wireless detection range. The integrated 2500mAh battery enables 48-hour backup operation. Key strengths include high-precision sensing, low-power IoT communication, and seamless integration with industrial protocols, though its smaller display may limit complex data visualization. The O4M IoT module ensures secure cloud connectivity for predictive maintenance analytics.
Parameter Specification
eSMARTO4M Sensor
Measurement Range 0-1000 units (configurable)
Accuracy ±1.5% FS
Response Time ≤50 ms
Communication Interface UART/SPI/I²C
Operating Voltage 3.3V DC ±5%
SMART04M Controller
Processor Core ARM Cortex-M4 120MHz
Flash Memory 512KB
RAM 128KB SRAM
Analog Inputs 16-bit ADC x 8 channels
Digital I/O 24 configurable pins
O4M IoT Module
Wireless Protocols Wi-Fi 802.11 b/g/n, BLE 5.0
Cloud Compatibility AWS IoT, Azure IoT Hub
Security TLS/SSL, AES-256 encryption
Power Consumption 15mA (active), 2μA (sleep)
Operating Temperature -40°C to +85°C
question:What shipping methods do you support?
answer:We support DHL, FedEx, UPS, and other mainstream shipping options.
question:Can I schedule official courier pickup myself?
answer:Yes, customers can schedule official courier pickups directly through our platform post-order confirmation.
question:Why are shipping costs high? Any cheaper options?
answer:Yes, we provide cost-effective alternatives like sea freight or economy air/land transport for bulk shipments.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
question:What shipping methods do you support?
answer:We support DHL, FedEx, UPS, and other mainstream shipping options.
question:Can I schedule official courier pickup myself?
answer:Yes, customers can schedule official courier pickups directly through our platform post-order confirmation.
question:Why are shipping costs high? Any cheaper options?
answer:Yes, we provide cost-effective alternatives like sea freight or economy air/land transport for bulk shipments.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
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