The Ultrasonic Humidifier Mist Maker is a versatile device designed for efficient mist generation with color-changing effects. Perfect for enhancing indoor environments. Key features include:

• Material: Plastic and electronic components
• Voltage: 220V-240V
• Rated voltage: 24V
• Rated power: 15W
• Rated frequency: 50Hz
• Cable Length: 1.25m
• Spray Sheet Diameter: 20mm (0.79'')
• Applicable water depth: 6-10cm
• Plug: EU plug
• Color: Black
• Size: 45x30mm (1.77x1.18'')

The HC-SR501 PIR Motion Detector Module is a reliable and efficient human sensor module. Utilizing pyroelectric infrared technology, this module is designed for body sensing applications. It operates within a voltage range of DC 4.5-20V, with a quiescent current of less than 50uA. The level output is High 3.3V / Low 0V, with adjustable trigger modes.

• Product Type: HC-SR501 Body Sensor Module
• Operating Voltage Range: DC 4.5-20V
• Quiescent Current: <50uA
• Level Output: High 3.3V / Low 0V
• Trigger Modes: L cannot be repeated trigger / H can be repeated trigger (Default: repeated trigger)

• Heating voltage: 5 ± 0.2V (AC direct current)
• Operating current: 5-10mA
• Detectable concentration range: PH0-14
• Test temperature range: 0-80 °C

The Digital Thermostat W1219 is a reliable temperature control switch sensor with a dual color display, designed for precise temperature management. Key features include:

• Power Supply: DC12V
• Relay Current: <50mA
• Dimensions: 47*40mm

This package includes one Digital Thermostat Temperature Control Switch Sensor with a dual color display (W1219).

• Digital output for easy integration
• ABS material for durability
• Compatible with both 3.3V and 5V systems
• Detects carbon dioxide (CO2) in the range of 400~5000ppm

✔ High Precision Measurement – Onboard precision micro current transformer for accurate current sensing
✔ Op-Amp Circuit Board – Provides accurate signal sampling and appropriate compensation
✔ Adjustable Output – The analog output corresponding to current can be easily adjusted
✔ Wide Working Voltage – Operates within a range of DC 5-30V for versatile

• Wide Voltage Range: Operates with an input voltage of 3.3V to 5.5V, making it compatible with various systems.
• Accurate Measurement: Provides TDS (Total Dissolved Solids) measurement range of 0-1000ppm with ±10% accuracy at 25°C.
• Low Power Consumption: 3-6mA working current, ensuring energy efficiency.
• Waterproof Probe: Includes a waterproof TDS probe for reliable outdoor or aquatic use.

• Wide Input Voltage Range: Supports DC voltage from 0V to 25V.
• High Voltage Detection Precision: Detects voltages between 0.02445V and 25V.
• Analog Voltage Resolution: Provides an analog voltage resolution of 0.00489V.
• Easy to Connect: Connects easily with Arduino AD pins via a 3P connector.

• High-sensitivity microphone for capturing subtle sound changes
• Compatible with Arduino and other microcontroller platforms
• Analog output with threshold level output flip for flexibility
• Equipped with a power indicator and comparator output light for easy monitoring

• Low Power Consumption: Operates on a supply voltage of 2.4V-3.6V, typically 3.0V, and consumes only 0.12mA of current.
• Wide Measuring Range: Measures light intensity from 1lx to 65535lx.
• I2C Communication: Uses I2C bus for data transmission, making it easy to integrate with microcontrollers.
• High Accuracy: Offers ±20% accuracy in light measurements.

• Onboard TTP229 Capacitive 16-Key Touch Sensing IC
• Supports 16 capacitive touch buttons for seamless touch control
• Onboard power indicator for status monitoring
• Adjustable output modes, key response, and power settings

The 4-ARRAY Infrared Tracking Obstacle Avoidance Car Sensor is designed for Arduino projects, offering reliable tracking and obstacle avoidance capabilities. This sensor operates at 3.3V to 5V DC, providing adjustable detection distances between 1 mm to 60 cm. Ideal for robotics and smart car applications.

Key Features:

• Working Voltage: 3.3V to 5V DC

• Current Requirement: Use more than 1A power supply

• Working Temperature: -10°C to +50°C

• Detection Distance: 1 mm to 60 cm adjustable

• Installation: M3 screw aperture

• Control Plate Size: 44 mm x 30 mm x 8.5 mm

• Small Board Sensor (Obstacle Avoidance): 11 mm x 25 mm x 10 mm

• Small Plate Sensor (Tracking): 20 mm x 11 mm x 15 mm

The FPM10 Fingerprint Recognition Module is versatile and easy to use with various microcontrollers and embedded systems. This module offers stable performance and comprehensive functions, including fingerprint collection, registration, comparison, and search. Ideal for security applications such as fingerprint door locks, safes, and access control systems.

• Supply Voltage: DC 3.6 ~ 6.0V
• Operating Current: <120mA
• Fingerprint Image Input Time: <1.0 seconds
• Window Area: 14 × 18 mm
• Storage Capacity: 1000 templates
• False Recognition Rate (FAR): <0.001%
• False Rejection Rate (FRR): <1.0%
• Host Computer Interface: UART (TTL logic level)
• Communication Baud Rate: (9600 × N) bps

• Embedded 24-bit A/D Converter: Ensures high precision for weight measurements.
• High Precision Weight Module: Accurate and reliable sensor for weight detection.
• Easy Installation: Bolt holes provided for simple mounting.
• Low Current Consumption: Operating current is less than 10mA.

• Multiple Sensors in One Board: Includes a gyroscope, accelerometer, compass, barometer, and thermometer for various applications.
• Compact Size: Small form factor of 1.5" x 0.9" makes it suitable for compact projects.
• I2C Communication: Uses I2C 7-bit addresses for easy integration with microcontrollers like Arduino.
• Wide Voltage Compatibility: Operates with both 3V and 5V input voltage for flexible usage.

• Wide temperature measurement range: -55°C to +125°C
• High accuracy of ±0.5°C for precise readings
• Operates on a low voltage of DC 3V to 5V
• Digital signal output with 9 to 12-bit resolution