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0.5X barlow lens RF4
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Seven-segment display (5611AH):
- The 7-segment displays consist of a series of LEDs placed to form numbers.
- A 7-segment display allows you to view the digits from 0 to 9.
- Typical voltage: 2.2v / Current per segment max: 30mA
12mm 12528 LDR is a type of photoresistor with a 12mm diameter and the model number GL12528, which changes its resistance based on the intensity of light it is exposed to. The resistance of the component is high in the dark and drops significantly as light increases, making it useful for detecting ambient light levels
This is 125K RFID Tag. The RFID technology is used for sensing and identifying tagged people and objects for access control, automation, and a whole range of different applications.
Operating on a frequency of 125kHz, these tokens are all pre-programmed with unique ID numbers to communicate wirelessly with RFID Readers over distances of around 10cm or less. This means you can attach it to vehicles or items, keyrings or even pets’ collars to keep track of the location via an array of readers in the office, warehouse or home.
The HW-201 IR infrared obstacle detection module can detect obstacles within a distance range of 2 cm to 30 cm, with a detection angle of 35 degrees.
It can operate with a supply voltage of 3.3 V to 5 V and has a maximum current consumption of 100 mA. The module outputs a digital signal, high when an obstacle is detected, low when no obstacle is detected.
The infrared LED has a wavelength of 940 nm and an operating frequency of 38 kHz. The module operates at temperatures between -25 °C and +55 °C.
The “LJ12A3-4-Z/BX” is an inductive proximity sensor that detects metal objects within a 4mm range. It operates on a DC 6-36V power supply and has an NPN (Normally Open) digital output, meaning it completes a circuit to the signal line when it detects metal. These sensors are used in industrial automation for non-contact switching, control, and detection
The MQ3 analog gas sensor is suitable for detecting alcohol; this sensor can be used in a breathalyzer.
It has high sensitivity to alcohol and low sensitivity to gasoline.
The sensitivity can be adjusted using a potentiometer.
A 5v relay is an automatic switch that is commonly used in an automatic control circuit and to control a high-current using a low-current signal. The input voltage of the relay signal ranges from 0 to 5V.
3S 20A Li-ion 18650 BMS Lithium Battery Protection Board is a Battery Management System (BMS) designed for 3-cell 18650 Li-ion battery packs. It offers overcharge, over-discharge, short-circuit, and overcurrent protection to ensure the safe operation and longevity of your battery packs.
Ardess Digital Mini Thermometer with cable allows you to easily and fast know the environment temperature around you anywhere
The thermometer comes with 1m cable metal sensor probe, perfect for use in refrigerator, aquarium tank, fish tank,pet cage, kitchens,3D printer, solar system, cellar,humidors, incubator or any other places that require monitoring of temperature.
- Wheelbase: 330mm
- Material: Glass Fiber + Polyamide-Nylon
- Moter Mounting Hole Diameter: 3 mm
- Arm Size: 155×34 (LxW) mm
- Weight: 160 gm
