Yujie MRR-1 Series Ultrasonic Sensor
Features & Applications
The Yujie MRR-1 series is a compact threaded-mount ultrasonic sensor with a very small blind zone. Its threaded design allows quick installation, and the sensor supports battery power. It is particularly suitable for smart-city, smart-home or IoT devices for distance and level monitoring. The small form factor enables easy integration, enhancing system intelligence.
Features
- ✔ Compact Threaded Design – Quick M18 installation in tight spaces
- ✔ Battery Power Compatible – 3.6-5V DC for IoT and mobile applications
- ✔ Very Small Blind Zone – Ideal for close-range distance measurement
- ✔ TEACH-IN Functionality – Easy calibration and setup
- ✔ Temperature Compensation – Maintains accuracy across temperature changes
- ✔ High-Quality Housing – Chemical-resistant PBT/FRP materials
Applications
- • Liquid and Solid Level Measurement (Tanks, Totes, Processing)
- • Bulk Material Management
- • Factory automation
- • Position Detection
- • Collision avoidance systems
- • Smart parking systems
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Highlights
- • Housing made of high-quality stainless steel/PBT (Chemical Resistance)
- • Battery powered compatible (3.6-5V DC option)
- • TEACH-IN functionality
- • Temperature compensation
Key Specifications
| Product Name | 4 Pin Connector Plastic PZT Ultrasonic Waterproof Sensor |
|---|---|
| Model Number | UM4000 Series (M18) |
| Brand Name | YUJIE |
| Sensing Distance | 100 … 1000 mm (50 … 800 mm) |
| Adjustment Range | 100 … 1000 mm (50 … 800 mm) |
| Unusable Area | 0 … 100 mm (0 … 50 mm) |
| Standard Target Plate | 100 mm × 100 mm |
| Transducer Frequency | About 200 kHz |
| Response Delay | About 125 ms |
| Indicators | LED yellow, LED red |
| Operating Voltage | 10 … 30 VDC, ripple 10%ss (3.6 - 5 VDC) |
| No-load Supply Current | ≤ 20 mA |
| Output Type | 1 output UART TTL |
| Resolution | 0.11 mm at max. sensing range |
| Deviation of Characteristic Curve | ±1% of full-scale value |
| Repeat Accuracy | ±0.1% of full-scale value |
| Load Impedance | > 1k Ohm |
| Temperature Influence | ±1.5% of full-scale value |
| Ambient Temperature | -25 … 70 ℃ |
| Storage Temperature | -40 … 85 ℃ |
| Protection Grade | IP67 |
| Connection | Connector M12x1, 4 PIN |
| Wiring Colors | Brown, White, Blue, Black (Standard M12) |
| Housing Material | PBT OR FRP |
| Transducer Material | Epoxy resin/hollow glass sphere; Polyurethane foam |
| Weight | 48 g |