SW-420 Normally Closed Vibration Sensor Module
$0.991pcs
SW-420 vibration sensor module offers silent, reliable protection! Normally closed stays stable, triggers fast when vibrated, clear logic, easy integration. High sensitivity detects precise shakes.
| Dimensions | 31.0 × 14.0 mm |
|---|---|
| Brand |
easyelecmodule |
4540 in stock
SW-420 Introduction
The SW-420 normally closed vibration sensor is adopted for various vibration-triggered applications, such as burglar alarms, smart cars, earthquake alarms, and motorcycle alarms. Compared with the normally open vibration sensor module, this module has a longer vibration trigger time and can drive relay modules. It is specially designed with M3 mounting holes for easy direction adjustment and fixation. It uses a wide-voltage LM393 comparator, providing clean signals with good waveforms and strong driving capability, exceeding 15mA. It is equipped with a precision adjustable potentiometer for sensitivity adjustment.
Pin Function
| Pin | Definition |
|---|---|
| VCC | External connection to 3.3V – 5V (can be directly connected to 5V microcontroller and 3.3V microcontroller) |
| GND | Grounding |
| DO | Small board digital output interface (0 and 1) |
Usage Instruction
1. Connect the VCC and GND, and the module’s power indicator light will turn on.
2. When the power supply is normal, both the two LED lights are on, and the DO pin outputs a low level. When the sensor is tapped, the DO-LED light goes off, and the DO pin outputs a high level.
Note : The vibration sensor has a very high sensitivity. After tapping the sensor once, DO immediately outputs a high level, and then it becomes a low level. Therefore, if you need to continuously output a high level, you need to tap the sensor continuously.
3. Additionally, there is a sensitivity adjustment potentiometer on the sensor. You can use the cross-shaped knob to adjust the sensitivity. If only the PWR-LED light is on after power-on, it indicates that the highest sensitivity has been reached. You need to rotate the adjustment to make both lights on. Sometimes even after continuous tapping of the sensor, the DO-LED does not go out, indicating that the lowest sensitivity has been reached. You need to rotate the adjustment to make the DO-LED go out when tapping.
Product Application
1. Predictive Maintenance: Vibration sensors play a crucial role in predictive maintenance programs, by continuously monitoring the health and performance of machinery and equipment. By detecting changes in vibration levels, these sensors can identify potential faults before they escalate into costly failures, allowing for timely maintenance and repair.
2. Condition Monitoring: In manufacturing plants and industrial facilities, vibration sensors are used for condition monitoring of rotating machinery such as motors, pumps, and turbines. By monitoring the vibration levels, these sensors can detect abnormal conditions such as imbalance, misalignment, and bearing wear, allowing for early intervention to prevent downtime and production losses.
3. Vehicle Health Monitoring: In the automotive and aerospace industries, vibration sensors are used to monitor the health and performance of vehicles and aircraft. They are applied in engine and transmission monitoring systems to detect abnormal vibrations caused by mechanical failures or component wear. Additionally, vibration sensors are also used in flight data recorders (black boxes) to capture and analyze the vibrations of aircraft during flight.
4. Earthquake and vibration monitoring: Vibration sensors, such as accelerometers and seismometers, are widely used in earthquake and vibration monitoring networks to detect and record ground vibrations caused by seismic events. These sensors assist seismologists and geologists in studying seismic activities, assessing seismic risks, and developing early warning systems to mitigate the impact of earthquakes on humans and infrastructure.
Relative Information
Shipping Cost
We only ship to the United States. Shipping costs are calculated based on the total order amount.
Shipping Method And Delivery Time
All orders will be processed and shipped within 72 hours of placing the order (excluding weekends and holidays). They will ship from Shenzhen, China, primarily via 4PX logistics. Depending on the destination and logistics conditions, other carriers such as DHL, FedEx, UPS, USPS, etc., may also handle the delivery. Estimated shipping time is 7-12 business days, with actual delivery occurring in 10-17 business days, depending on logistics conditions.
Payment:
We accept Visa, Master card, Maestro, American Express, JCB, Dinner's Club, Discover, Paypal, Apple Pay, Google Pay .
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