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Light Dependent Resistor(LDR) 5 mm
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Light Dependent Resistor(LDR) 5 mm

10.00৳  Add to cart

  • LDR 5 mm – Light Sensitive Resistor

  • Resistance changes with ambient light levels

  • Dark resistance: 1–20 MΩ

  • PCB Through-Hole Mount | 2 Pins

  • Available now at Circuit City BD

IR Obstacle Sensor
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IR Obstacle Sensor

70.00৳  Add to cart

  • Infrared Obstacle Detection Sensor

  • Detection Distance: 2 ~ 30cm

  • Detection Angle: 35°

  • LM393 Comparator for Stable Output

  • Works with 3.6V to 5V Power Supply

  • Easy Mounting with 3mm Screw Holes

  • Availability: Order now from Circuit City BD!

PCB Mounted Passive Buzzer Module
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PCB Mounted Passive Buzzer Module

70.00৳  Add to cart
  • Operating Voltage: 1.5V - 15V DC
  • Tone Generation Range: 1.5 kHz - 2.5 kHz
  • Current Consumption: Less than 25mA
  • Application: Alarms, Timers, Notifications, Sound Alerts
  • Availability: Available at Circuit City BD
YL-69 Soil Hygrometer Humidity & Soil Moisture Detection Sensor
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YL-69 Soil Hygrometer Humidity & Soil Moisture Detection Sensor

120.00৳  Add to cart
  • Operating Voltage: 3.3V - 5V DC
  • Output Modes: Analog & Digital
  • Features: LM393 comparator chip, power indicator, accurate moisture detection
  • Application: Smart irrigation, greenhouse monitoring, soil moisture measurement
  • Availability: Available at Circuit City BD
HC-SR04 Ultrasonic Distance Sonar Sensor
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HC-SR04 Ultrasonic Distance Sonar Sensor

100.00৳  Add to cart
  • Product Name: HC-SR04 Ultrasonic Distance Sonar Sensor
  • Operating Voltage: 5V
  • Measuring Range: 2cm to 400cm
  • Accuracy: ±3mm
  • Applications: Distance measurement, obstacle detection, automation projects
  • Availability: Available at Circuit City BD
HX1838 NEC Coding IR Remote Control Sensor Module
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HX1838 NEC Coding IR Remote Control Sensor Module

380.00৳  Add to cart

  • IR Remote Control & Sensor Module

  • Operating Voltage: 2.7V - 5.5V

  • Transmission Distance: Up to 8m

  • NEC Encoding Format

  • Internal PCM Filter & EMI Shielding

  • Battery (CR2025) Not Included

  • Availability: Order now from Circuit City BD!

IR Receiver Shielded
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IR Receiver Shielded

15.00৳  Add to cart

  • Supply Voltage: 3.0V - 5.0V DC

  • Receiver Frequency: 38 KHz

  • Low Power Consumption & High Immunity

  • Internal Filter for PCM Frequency

  • TTL & CMOS Compatibility

  • Availability: Order now from Circuit City BD!

LDR Photosensitive Sensor Module
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LDR Photosensitive Sensor Module

75.00৳  Add to cart
  • Operating Voltage: 3.3V - 5V DC
  • Output: Analog (A0) & Digital (D0) Outputs
  • Adjustable Sensitivity: Potentiometer for light intensity control
  • Application: Light detection, brightness control, smart lighting
  • Availability: Available at Circuit City BD
DHT22/AM2302 Digital Temperature and Humidity Sensor Module
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DHT22/AM2302 Digital Temperature and Humidity Sensor Module

450.00৳  Add to cart
  • Measurement Range: Temperature -40°C to 80°C, Humidity 0% to 99.9% RH
  • Accuracy: Temperature ±0.5°C, Humidity ±2% RH
  • Features: High precision, capacitive type, calibrated digital signal, long-term stability
  • Application: Suitable for weather monitoring, HVAC systems, industrial applications
  • Availability: Available at Circuit City BD
MQ-135 Gas Sensor
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MQ-135 Gas Sensor

170.00৳  Add to cart
  • Gas Detection: Detects Ammonia, Sulfide, Benzene, Alcohol, Smoke, and Harmful Gases
  • Sensitivity: Adjustable sensitivity with fast response and recovery
  • Output: Analog voltage output (0-5V) with a signal output indicator
  • Application: Suitable for air quality monitoring, gas leak detection, and industrial safety
  • Availability: Available at Circuit City BD
FC-04 Microphone Sound Sensor Module
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FC-04 Microphone Sound Sensor Module

75.00৳  Add to cart
  • Product Name: FC-04 Microphone Sound Sensor Module
  • Main Chip: LM393, Electret Condenser Microphone
  • Operating Voltage: 3.3V - 5V
  • Induction Distance: 0.5 Meter
  • Output Signal: Single Channel, Low-Level Output
  • Size: 43mm x 17mm x 8mm
  • Weight: 3g
  • Applications: Sound detection, voice-activated systems, security alarms
  • Availability: Available at Circuit City BD
HC-SR501 PIR Infrared Motion Sensor
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HC-SR501 PIR Infrared Motion Sensor

95.00৳  Add to cart
  • Product Name: HC-SR501 PIR Infrared Motion Sensor
  • Operating Voltage: 4.5V-20V DC
  • Detection Distance: 3 to 7m (Adjustable)
  • Detection Angle: <140°
  • Current Consumption: <60uA
  • Availability: Available at Circuit City BD
Water Level Depth Detection Sensor Module
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Water Level Depth Detection Sensor Module

50.00৳  Add to cart
  • Operating Voltage: 3V - 5V DC
  • Sensor Type: Analog Output
  • Detection Area: 40mm x 16mm
  • Features: Low power consumption, easy water level measurement, high sensitivity
  • Application: Water tank monitoring, rain detection, liquid level measurement
  • Availability: Available at Circuit City BD
KY-026 The Flame Sensor Module Digital & Analog Output
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KY-026 The Flame Sensor Module Digital & Analog Output

85.00৳  Add to cart
  • Operating Voltage: 3.3V - 5V DC
  • Detection Range: 760nm - 1100nm flame spectrum, up to 100cm
  • Features: Digital & analog output, adjustable sensitivity, LM393 comparator for stable readings
  • Application: Fire detection, firefighting robots, security systems
  • Availability: Available at Circuit City BD
Flame Sensor Fire Detection Module
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Flame Sensor Fire Detection Module

70.00৳  Add to cart
  • Operating Voltage: 3.3V - 5V DC
  • Detection Range: 760nm - 1100nm flame spectrum
  • Features: High sensitivity, 60° detection angle, onboard signal output, adjustable sensitivity
  • Application: Fire detection, security systems, flame monitoring
  • Availability: Available at Circuit City BD
KY-037 Microphone Sound Sensor Detection Module
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KY-037 Microphone Sound Sensor Detection Module

90.00৳  Add to cart
  • Product Name: KY-037 Microphone Sound Sensor Detection Module
  • Main Chip: LM393, Electret Condenser Microphone
  • Operating Voltage: 3.3V - 5V
  • Induction Distance: 0.5 Meter
  • Output Signal: Single Channel, Low-Level Output
  • Size: 43mm x 17mm x 8mm
  • Weight: 3g
  • Applications: Sound detection, voice-activated systems, security alarms
  • Availability: Available at Circuit City BD
US-015 Ultrasonic Module Distance Measuring Transducer Sensor
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US-015 Ultrasonic Module Distance Measuring Transducer Sensor

250.00৳  Add to cart
  • Product Name: US-015 Ultrasonic Module Distance Measuring Transducer Sensor
  • Operating Voltage: 5V
  • Measuring Range: 2cm to 400cm
  • Accuracy: ±0.3cm
  • Applications: Distance measurement, automation, robotics, liquid level detection
  • Availability: Available at Circuit City BD
MQ-2 Flammable Gas & Smoke Sensor
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MQ-2 Flammable Gas & Smoke Sensor

150.00৳  Add to cart
  • Product Name: MQ-2 Flammable Gas & Smoke Sensor
  • Operating Voltage: 5V
  • Preheat Duration: 20 seconds
  • Output Voltage: 0-5V (Analog & Digital)
  • Applications: Gas leakage detection, industrial safety, home security
  • Availability: Available at Circuit City BD
MAX30102 Heart Rate and Pulse Sensor Module
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MAX30102 Heart Rate and Pulse Sensor Module

380.00৳  Add to cart
  • Product Name: MAX30102 Heart Rate and Pulse Sensor Module
  • LED Wavelength: Red: 660nm, Infrared: 880nm
  • Power Supply Voltage: 3.3V~5V
  • Communication Interface: I2C
  • Applications: Wearables, medical monitoring, fitness devices
  • Availability: Available at Circuit City BD
Heart Rate Pulse Sensor Module
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Heart Rate Pulse Sensor Module

300.00৳  Add to cart
  • Product Name: Heart Rate Pulse Sensor Module
  • Power: 3-5V
  • Diameter: 16mm
  • Magnification: 330
  • LED Wavelength: 609nm
  • Availability: Available at Circuit City BD
AS608 Optical Fingerprint Sensor
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AS608 Optical Fingerprint Sensor

1,950.00৳  Add to cart
  • Product Name: AS608 Optical Fingerprint Sensor
  • Resolution: 500dpi
  • Supply Voltage: 3.3V
  • Fingerprint Image Entry Time: <1.0 seconds
  • Communication Interface: USB/UART
  • Availability: Available at Circuit City BD
TOF10120 Laser Range Sensor Module
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TOF10120 Laser Range Sensor Module

1,575.00৳  Add to cart
  • Product Name: TOF10120 Laser Range Sensor Module
  • Power Supply Voltage: 3.3V~5V
  • Operating Current: <35mA
  • Measuring Distance: 100-1800mm
  • Emitter: 940nm invisible laser (VCSEL)
  • Compatibility: Arduino, Raspberry Pi
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VL6180 VL6180X ToF Range Finder Sensor
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VL6180 VL6180X ToF Range Finder Sensor

1,299.00৳  Add to cart
  • Product Name: VL6180 VL6180X ToF Range Finder Sensor
  • Power Supply Voltage: 3.3V~5V
  • Operating Current: <5mA
  • Measuring Distance: 5-100mm
  • Emitter: 940nm invisible laser (VCSEL)
  • Compatibility: Arduino, Raspberry Pi
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Digital Load Cell Weight Sensor 5kg
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Digital Load Cell Weight Sensor 5kg

380.00৳  Add to cart
  • Product Name: Digital Load Cell Weight Sensor 5kg
  • Dimensions: 75 x 13 x 13 mm
  • Weighing Range: 0-5 kg
  • Material: Aluminum alloy
  • Output: 1.0 ± 0.1mV/V
  • Compatibility: HX711 & Arduino compatible
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