Enhance your temperature measurement capabilities with the Digital Thermometer with Probe TPM-10. Key features include:

• Power supply: DC 1.5V (2 x LR44 Button Batteries)
• LCD display with an embedded three-digit digital panel
• High precision: ±1%
• Measuring range: -50℃ to 110℃
• Compact overall size: 48 x 28.5 x 16cm
• Easy installation dimensions: 46.2 x 26.7mm

Perfect for a wide range of applications, ensuring accurate and reliable temperature readings.

• High-Precision Laser Sensor: Measures absolute distance up to 2 meters
• Compact Design: Small form factor for easy integration
• I2C Communication: Simplifies connection with microcontrollers
• Wide Voltage Compatibility: Works with 3V to 5V power supply

• Supports CAN V2.0B Specification with data transfer rate up to 1 Mbyte/sec.
• Handles 0 to 8-byte data field with Standard Frame and Remote Control Frame.
• 5V DC power supply module with SPI interface protocol control.
• Includes 120-ohm resistance for impedance matching to ensure long-distance data transmission and prevent signal radiation.

The SIM900A GSM GPRS Board + Antenna for Arduino is a robust module that ensures reliable connectivity for your projects. With a comprehensive set of features, this board is perfect for various applications. Key specifications include:

• SIM900A GSM module
• TTL level communication (cannot be directly connected to 232 level)
• SIM900A reset (active low)
• Power options: DC 5V and DC 3.3V-4.5V input
• Onboard Resources: Serial port circuit with protection, SMA antenna interface, SIM card circuit, 4*3.5 fixture hole, SIM900A serial port output terminal
• Frequency: 900 / 1800 MHz
• Working voltage: 5V
• Dimensions: 5.6 cm x 4.9 cm x 2.8 cm
• Weight: 23 g

• Versatile Compatibility: Designed for use with the 8 Pin NRF24L01+ Wireless Module
• Onboard AMS1117-3.3 Chip: Provides a stable 3.3V output from 5V DC input
• Efficient Power Supply: Input Voltage of 5V DC and Output Voltage of 1.9~3.6V DC
• Low Current Consumption: Operating current of 12.3mA for low power consumption

Enhance your Arduino projects with our Rotary Encoder Module. This versatile module allows counting in both positive and reverse directions by rotating the encoder, offering unlimited rotation counts. With a built-in reset button, you can easily reset to the initial state for accurate measurements.

• Working Voltage: 5V
• Material: Electronic components + PCB
• Main Colour: Black
• Size: Approx. 25 x 20 x 30mm

Package Includes: 1 x Rotary Encoder Module

• Adjustable gain of 1.5 to 1000x
• Adjustable offset
• 120kHz bandwidth (gain = 100x)
• Input signal range of 100uV – 300mV

• High sensitivity for low-light applications.
• Low voltage operation, ideal for embedded applications.
• Standard SCCB interface compatible with I2C communication.
• Supports various output formats: RGB565/555/444, YUV (4:2:2), and YCbCr (4:2:2).

• Pulse oximetry and heart rate monitoring solution
• Integrated ambient light cancellation and motion artifact resilience
• Red and IR LED for accurate measurements
• I2C interface with INT pin for easy communication

Specifications:

• Protocols: Bluetooth low energy 5.0
• Type: Wireless MCU
• Features: LE 1M PHY
• Peripherals: 12-bit ADC 8-channel, 2 SPI, 2 UART, 4 timers, I2C
• Rating: Catalog
• Flash memory (kByte): 256
• RAM (kByte): 8
• Number of GPIOs: 23
• Security: Cryptographic acceleration, Debug security, Device identity, Software IP protection
• Sensitivity (best) (dBm): -94
• Operating temperature range (°C)    -40 to 85

Package:

1x HC-08 Android iOS BLE 4.0 Bluetooth Module for arduino CC2540 CC2541 BLE Serial Wireless Module Compatible HM-10 HM-11

• Wide Input Voltage Range: 4.2V to 40V.
• Adjustable Output Voltage: Ranges from 1.2V to 37V.
• High Output Current: Minimum 1.5A, typical 2.2A.
• Wide Operating Temperature: Ranges from -55°C to +150°C.

Monitor your heart rate with precision using the KY-039 Finger Probe Heartbeat Detection Sensor Module. Key features include:

• Working voltage: 5V
• Uses IR LED and optical transistor for pulsation detection
• Ideal for synthesized teaching experiments
• Compact dimensions: 25 x 22 x 17mm
• Lightweight: 2g

Perfect for integrating into your Arduino projects to measure heartbeat rates accurately.

• 4-Channel relay interface board with independent control
• High-current relay support: AC250V 10A / DC30V 10A
• Opto-isolated inputs for enhanced safety and noise reduction
• LED indicators for real-time relay output status

• Detects conductance of skin
• Includes finger straps for electrodes
• Compatible with 3.3V and 5V systems
• Compact and lightweight design

• Supports Li-ion battery charging and boosting with 5V 2A output
• High charging efficiency with 96% discharge efficiency
• Compact and lightweight design for portable applications
• Wide operating temperature range (-20°C to +85°C)

• Compact Design: Ideal for small projects with limited space.
• Versatile Power Options: Supports 5V, 3.3V, 12V, and other input voltages.
• Reliable Output: Provides a high signal when pressed and low when not.
• Simple Connection: Easy to integrate into various circuits and applications.