The Magnetic Door/Window Reed Switch Sensor is a compact and reliable proximity sensor designed for monitoring access points in homes, offices, and DIY projects. Operating on the principle of a magnetic reed switch, the circuit remains open until the magnet is brought close, at which point it closes to allow current flow. This makes it perfect for integration with microcontrollers like Arduino, enabling digital monitoring with the use of a pull-up resistor. With a reed switch size of 11 × 16 mm, magnet size of 11 × 15 mm, and a 35 cm cable, this sensor is lightweight, easy to install, and highly effective in alarm systems, automation, and access monitoring. Featured By RoboticsBD.
Product Images are shown for illustrative purposes only and may differ from the actual product.
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%
LDR 10 mm Light Depending Resistor Low-cost sensor device Wide spectral response Use in fire alarms, smoke alarms, control street light Low cost. Ambient Temperature Range. Wide spectral response.
GY-906-BCC is an infrared thermometer module based on the MLX90614ESF-BCC which is designed to be able to measure object temperatures without having to touch the object's surface directly. This module is quite small in size and has quite high accuracy, making it suitable for application for measuring human body temperature.
The LM35D is an analog temperature sensor module designed to measure ambient temperature using a simple voltage output. Based on the LM35D sensor chip, this module is suitable for basic temperature monitoring in DIY electronics, educational projects, and embedded systems.
INA3221 Triple-Channel Shunt Current and Voltage Monitor Sensor Board Measures high-side current and bus voltage with I2C and SMBUS compatibility Monitors bus voltages (0V to 26V) and shunt voltage drops with high accuracy Programmable alerts, averaging modes, and conversion times for enhanced control Compact design with four programmable I2C addresses...
SW-520D angle sensor module for tilt and orientation detection. Built-in LM393 comparator chip ensures stable and accurate digital output. Adjustable sensitivity via onboard potentiometer for flexible applications. Digital output (0/1) simplifies integration with Arduino, Raspberry Pi, etc. Includes LED indicators for power and output status monitoring....
Working voltage:2.8-3.8V ALS, IR LED and Proximity Detector in an Optical Module; Ambient Light Sensing (ALS); Approximates Human Eye Response; Programmable Interrupt Function with Upper and Lower Threshold; Up to 16-Bit Resolution; High Sensitivity Operates Behind Darkened Glass; Low Lux Performance at 0.01 lux;
LPB40B IP65 DToF Single-Point LiDAR sensor with 0.05m–40m detection range ±5cm high accuracy with stable performance even in 100klux sunlight Adjustable measurement frequency: 1–2000Hz for high-speed applications IP65-rated dustproof and waterproof design for indoor & outdoor use UART interface for seamless integration with Arduino and other...
Stainless steel pressure transducer with G1/4" threaded interface Pressure range up to 5MPa, ideal for high-pressure monitoring High accuracy (±1.5%FS) with <2ms response time Output: 0.5–4.5VDC @ 5V input, low power <10mA consumption IP65-rated waterproof & surge-protected stainless steel body Suitable for oil, gas, hydraulic, and industrial...
AM312 Mini PIR Motion Sensor with compact 10x8mm PCB design Wide operating voltage range of 2.7V to 12V DC with low quiescent current (<1mA) Detects motion within 3–5 meters at ≤100° cone angle Features a repeatable trigger with a 2-second delay time Ideal for auto-sensing electrical equipment and smart devices
XKC-Y25 non-contact water level sensor with NPN output Operates on 24V DC with low 5mA power consumption IP67 waterproof ABS housing for durability in harsh environments Detects liquid levels without drilling non-metallic containers Works with toxic, acidic, alkaline, or high-pressure liquids Strong anti-interference, stable, and highly sensitive design
This is the HC-SR04 ultrasonic distance sensor. This economical sensor provides 2cm to 400cm of non-contact measurement functionality with a ranging accuracy that can reach up to 3mm. Each HC-SR04 module includes an ultrasonic transmitter, a receiver and a control circuit. There are only four pins that you need to worry about on the HC-SR04: VCC (Power),...
Made of hard leather. Excellent material, fine workmanship. It is an environmental 9V battery buckle. Wire Length: 5cm. Color: Black. Battery not included. The device contains a battery that you may need to replace.
Constant 9V Output till lasts Metal Jacket Body Good Built Quality and hence Leakproof Easy to install and Replace Corrosion free Connector Point for long-term use 0% Mercury and Cadmium. Environment-friendly OEM Compatible. RoboticsBD
Clean, good waveform driving ability, more than 15mA. Working voltage 3.3V-5 Output format: digital switching output (0 and 1) A fixed bolt holes for easy installation
Magnetic reed contact sensor for door and window position detection Default open-circuit design, closes when magnet is nearby Supports working voltage up to 40V and max current of 0.1A Detection range up to 25mm for reliable triggering Easy integration with Arduino, microcontrollers, and alarm systems Compact 20 × 64mm housing with mounting holes for...
Actuation Distance : 15 – 25 mm; Connecting cable length: 30 cm. Magnetic sensor alarm, control the switch of the circuit via the built-in magnet Alarm when someone intrudes into your places Can be used in places like apartment, hotel, office, etc.
