Reference: RBD-1970

Brand: DFRobot

Gravity: Speech Synthesis Module V2.0 (Support English and Chinese)

Version 2.0 More natural pronunciation Fewer pronunciation errors for polyphone characters No option of speakers

Reference: RBD-3528

Brand: DFRobot

RS485 Ultraviolet (UV) Intensity Measure Sensor (290-390nm, UVA, UVB)

The RS485 UV Sensor is designed to measure ultraviolet (UV) intensity and index values within the wavelength range of 290-390nm. Utilizing a photoelectric detector and an industrial-grade microprocessor, ensures reliable and stable performance. The sensor operates on a DC 5-30V wide voltage power supply and employs the Modbus-RTU 485 communication...

Reference: RBD-1424

ZMCT103C 5A Range Single Phase AC Micro Current Transformer Sensor

Onboard precision microcurrent transformer. Onboard sampling resistor. The module can measure AC currents less than 5A, the corresponding analog output 5A/5mA. Rated input current: 5A Rated output current: 5mA Change: 1000: 1 The linear range: 0 ~ 10A (100 ohms) Linearity: 0.2%

Reference: RBD-2097

Small Microphone Sound Sensor Module

5 reviews

5V Dc Power Supply Power indicator light The comparator output is light High Sensitivity Sound Microphone Sensor Detection Module Electric condenser microphone

Reference: RBD-3529

Brand: DFRobot

RS485 Photoelectric Solar Radiation Sensor (400-1100nm)

The RS485 Photoelectric Solar Radiation Sensor is designed to measure solar radiation in the spectral range of 400-1100nm. It uses the photoelectric principle to convert sunlight into electrical signals. Featuring a highly sensitive photosensitive element and a wide-spectrum absorption range, the sensor delivers accurate solar radiation measurements.

Reference: RBD-1675

PZEM-004T V3.0 AC Digital Multifunction Meter Watt Power Volt Amp With Coil 100A

2 reviews

Model: PZEM-004T Operating Voltage: 80-260VAC Test Voltage: 80-260VAC Rated Current: 100A Rated power: 100A / 22000W Operating frequency: 45-65Hz Measurement accuracy: 1.0

Reference: RBD-2098

Big Microphone Sound Sensor Module

8 reviews

Big Microphone Sound Sensor Module  Sound Detection Sensor Module High Sensitive Voice Sensor

Reference: RBD-0222

35mm Piezo Ceramic Elements Sound Sensor

17 reviews

Sound pressure level: 85DB 10cm The input voltage: 30vp-p max Ultra-thin and lightweight Low power consumption for voltage type Operating Temperature: -20~70 Storage Temperature: -30-80 Clear sound

Reference: RBD-1835

Non-invasive AC current Sensor Split Core Current Transformer SCT-013-050 50A

1 review

Input current (RMS): 50A. Work temperature: -25℃～+70℃. Storage temperature: -30℃～+90℃. Work voltage: 660V. Frequency range: 50Hz-1KHz.

Reference: RBD-1836

Non-invasive AC current Sensor Split Core Current Transformer SCT-013-000 30A

2 reviews

Input Current : 0-30A Output Mode: 0-1V @ 30mA Frequency: 50HZ-150KHZ Opening Size: 13 x 13mm/ 0.5″ x 0.5″(L*W) Output Plug 3.5mm Dielectric Strength 6000V AC/1min Suitable for lighting equipment, AC motors, air compressors, monitoring, current measurement, and protection Meet UL94-V0 flame retardant properties

Reference: RBD-2235

27mm Piezo Ceramic Elements Sound Sensor

1 review

Sound pressure level: 85DB 10cm The input voltage: 30vp-p max Operating Temperature: -20~70 Clear sound Ultra-thin and lightweight Low power consumption for voltage type

Reference: RBD-2236

20mm Piezo Ceramic Elements Sound Sensor

Plate Diameter: 20mm Element Diameter: 14mm Plate Thickness: .42mm Lead Length: ~50mm Plate Material: Brass Resonant Frequency (kHz): 6.3 +/- .6kHz

Reference: RBD-2071

SS49E Linear Hall Effect Sensor Module

3 reviews

Type: Magnetic Sensor Module Mainly Compatible with: Ardunio

Reference: RBD-2237

15mm Piezo Ceramic Elements Sound Sensor

2 reviews

Sound pressure level: 85DB 10cm The input voltage: 30vp-p max Clear sound Ultra-thin and lightweight No contacts: therefore, no noise and highly reliable Operating Temperature: -20~70 Storage Temperature: -30-80

Reference: RBD-2072

Linear Magnetic Hall sensor

1 review

Operating Voltage: 3.3V-5V Features wide range voltage comparator LM393 Adjustable sensitivity Signal output indicator with the retaining bolt hole, convenient installation Output form digital switch output (0 and 1 high and low level) The output effective signal is low level When there is sound, outputs low level and the signal light

Reference: RBD-2073

A3144 Hall Effect Sensor Module

Digital Output Hall-effect sensor. Operating voltage: typically 5V. Output Current: 25mA. It can be used to detect both the poles of a magnet.

Reference: RBD-2318

Sound Output Module Speaker Module Microphone Sensor Module Sound Sensor for Arduino

1 review

Speaker module with built-in power amplifier and adjustable sound via potentiometer Generates tones based on input frequency, ideal for Arduino projects and DIY music boxes Compact size (25mm x 45mm) with anti-plug data interface for easy and secure connections Features digital signal input and 4 M3 mounting holes for flexible installation Operates at 5V...

Reference: RBD-2120

HW670 5A Current Sensor

2 reviews

Onboard precision microcurrent transformer. Onboard sampling resistor. The module can measure AC currents less than 5A, the corresponding analog output 5A/5mA.

Reference: RBD-2224

Active Single Phase Voltage Transformer AC Voltage Sensor Module ZMPT101B

7 reviews

Voltage – 250V Easy PCB mounting Good consistency Widely acclaimed

Reference: RBD-2678

Surface Transducer - Large

1 review

Surface transducers give you the awesome power to turn almost any surface into a speaker. They're essentially just a speaker except instead of a cone, the coil is attached to a pad that conducts the vibration into whatever you press it against. Hook it up to an audio source and press it against the nearest table, wall or cardboard box. You can even put it...