Black 18mm 40kHz Waterproof Ultrasonic Distance Sensor
High-precision 40kHz ultrasonic sensor with IP68 waterproof rating, designed for accurate distance measurement up to 2.5 meters. Features dual transmitter/receiver functionality and rugged aluminum housing.
Key Features
- Dual functionality as both transmitter and receiver
- Rugged sealed construction for industrial environments
- Cylindrical design enables versatile installation options
- Short-range measurement capabilities with high accuracy
Applications
- Level measurement systems
- Automation control
- Proximity detection
- Obstacle avoidance
- Robotics and automation
Technical Specifications
| Parameter |
Value |
| Using method |
Transmitter and Receiver |
| Center frequency |
40±1kHz |
| Transmitting Sound Pressure Level |
≥96dB |
| Capacitance |
1800±15% pF (at 1.0kHz) |
| Directivity |
70±15° (-6dB) |
| Max. Input Voltage |
140 Vp-p (40kHz) |
| Detectable range |
≥2.5m |
| Ring time |
≤1.6ms |
| Receive Sensitivity |
≥200 (tested at 0.7m) |
| Impedance |
≤3000Ω |
| Mean time between failures |
5000h |
| Terminal |
PIN |
| Housing material |
Aluminum - Black color |
| Protection Class |
IP68 |
| Operating Temperature |
-40°C to +85°C |
| Storage Temperature |
-40°C to +85°C |
Mechanical Drawing
Wave Solder Profile
| Profile Feature |
SnPb Eutectic |
Pb-Free |
| Average ramp-up rate |
~200℃/second |
~200℃/second |
| Heating Rate during preheat |
Typical 1-2℃/second, max 4℃/second |
Typical 1-2℃/second, max 4℃/second |
| Final preheat temperature, Ts |
~130℃ |
~130℃ |
| Peak temperature, Tp |
235℃ |
260℃ |
| Time within +0℃/-5℃ of actual temperature, tp |
10 seconds |
10 seconds |
| Ramp-down rate |
5℃/second max. |
5℃/second max. |
Important Usage Notes
This product is designed for air environments only and cannot be used in liquids.
To ensure optimal performance and prevent malfunction, avoid using this sensor under the following conditions:
- Severe shock or vibration
- Long-term exposure to high temperatures and high humidity
- Corrosive gases or sea breeze environments
- Environments with soluble organic substances
- Areas with excessive dust
- Above the allowable input voltage specifications
Quality Assurance
During the warranty period, sensor defects caused by manufacturer responsibility will be replaced free of charge. Warranty does not cover improper use, user modifications, repairs, or circumstances beyond manufacturer control such as natural disasters.
Environmental Commitment
All materials except the piezoelectric ceramic sheet comply with ROHS standards.
Product Images
Manufacturing Facility
Our Services
- 24-hour response to all inquiries
- Professional technical support in fluent English
- Customized design and OEM/ODM services available
Technical Support
Our professional technical team provides comprehensive support for all product-related questions and technical challenges.
Frequently Asked Questions
When can we get the reply?
Any inquiries will be replied within 24 hours.
Can I have samples?
Yes, samples are available. We can send free samples with only freight charges applicable.
What about minimum order quantity?
No MOQ restrictions - you can order as few as 1 piece.
What about delivery time?
Samples ship within 3 days. Production orders require 20-25 days depending on product and quantity.
What about terms of payment?
T/T, Western Union, PayPal, and L/C accepted.
How will you send the goods to us?
Shipping via Air (DHL, FedEx, UPS, TNT) and Sea freight available.
Are you a trading company or manufacturer?
We are a China-based buzzer manufacturer.
Do you support OEM and ODM services?
Yes, we support both OEM and ODM services with custom design capabilities.
Can you provide driven circuit?
Yes, we can provide compatible driven circuits.
Can you solve technical problems for us?
Yes, our technical team provides comprehensive support for all product-related challenges.
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