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Home Product GR-QJ-20 SmartFlow Meter - High-Precision Liquid Sensor for HVAC & Water Treatment Systems
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GR-QJ-20 SmartFlow Meter - High-Precision Liquid Sensor for HVAC & Water Treatment Systems

GR-QJ-20 Control Module
GR-QJ-20 Power Relay
GR-QJ-20 Sensor System
GR-QJ-20
The GR-QJ-20 Control Module integrates the GR-QJ-20 Power Relay and GR-QJ-20 Sensor System, delivering seamless automation control, power management, and real-time monitoring for industrial applications with reliable performance.
Categories:Tools & Accessories
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Product Description

The GR-QJ-20 Control Module is an industrial-grade automation solution designed for seamless integration across diverse systems. It offers 8 digital inputs and 6 relay outputs, with direct compatibility for up to 4 peripheral modules via plug-and-play connectors. The GR-QJ-20 Power Relay ensures robust 20A load switching, operating within a 12-24V DC range and -20°C to +60°C temperature tolerance. Paired with the GR-QJ-20 Sensor System, it enables precision detection up to 10 meters through integrated infrared and ultrasonic sensors. Supporting RS-485 and Ethernet communication, this modular system excels in manufacturing, energy management, and smart infrastructure applications. Key advantages include a compact 5-inch interface panel, 5000mAh backup battery for uninterrupted operation, and MIL-STD shock resistance. Limitations include restricted wireless protocol support and manual calibration requirements for specialized environments.
Parameter Specification
GR-QJ-20 Control Module Model: GR-QJ-20-COM; Input Voltage: 24VDC ±10%; Output: 2x Relay Channels; Communication: RS-485/CAN; Protection: IP65
GR-QJ-20 Power Relay Model: GR-QJ-20-PWR; Max Load Current: 30A; Contact Rating: 250VAC 30A; Operate Time: ≤10ms; Insulation: 5000MΩ
GR-QJ-20 Sensor System Model: GR-QJ-20-SEN; Detection Range: 0-100 units; Accuracy: ±0.5%; Output Signal: 4-20mA/0-10V; Operating Temp: -20°C to 70°C
question:What payment methods do you accept?
answer:We accept TT, PayPal, and other mainstream payment methods for your convenience.
question:Why are the tags cut on received products?
answer:Tag removal may occur during customs clearance to comply with regional regulations.
question:Do you offer cheaper shipping options?
answer:Yes, we provide alternative cost-effective carriers based on package size and destination.
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 payment methods do you accept?
answer:We accept TT, PayPal, and other mainstream payment methods for your convenience.
question:Why are the tags cut on received products?
answer:Tag removal may occur during customs clearance to comply with regional regulations.
question:Do you offer cheaper shipping options?
answer:Yes, we provide alternative cost-effective carriers based on package size and destination.
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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