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Sensor
MQ-135 Air Quality Sensor
Sensor
MQ-135 Air Quality Sensor

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High sensitivity to Ammonia, Sulphide and Benzes

Stable and Long Life

Detection Range: 10 – 300 ppm NH3, 10 – 1000 ppm Benzene, 10 – 300 Alcohol

Heater Voltage: 5 V

Dimensions: 18 mm Diameter, 17 mm High excluding pins,Pins – 6 mm High

Long life and low cost

Domestic air pollution detector

Industrial air pollution detector

Portable air pollution detector

SKU: STEM18077
₹120.00 ~~₹186.00~~
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Sensor
MQ-2 Smoke Detection Sensor
Sensor
MQ-2 Smoke Detection Sensor

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Operating Voltage is +5 V

Can be used to Measure or detect LPG, Alcohol, Propane, Hydrogen, CO and even Methane

Preheat duration 20 seconds

Can be used as a Digital or Analog sensor

The Sensitivity of Digital pin can be varied using the potentiometer

SKU: STEM18070
₹105.00 ~~₹249.00~~
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Sensor
MQ-3 Alcohol – Ethanol Sensor
Sensor
MQ-3 Alcohol – Ethanol Sensor

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Operating Voltage: 3.5V to 5.5V

Operating current: 0.3mA (measuring),60uA (standby)

Output: Serial data

Temperature Range: 0?C to 50?C

Humidity Range: 20% to 90%

Good Sensitivity to Alcohol Gas

Accuracy: ?1?C and ?1%

On-board LED Indicator

SKU: STEM18071
₹120.00 ~~₹194.00~~
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Sensor
MQ-4 Methane Natural Gas Sensor
Sensor
MQ-4 Methane Natural Gas Sensor

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Good sensitivity to Combustible gas in wide range

High sensitivity to CH4, Natural gas

Small sensitivity to alcohol, smoke

Oxygen concentration: 21%(standard condition)

Wide detection range

Port explanation : DO for digital output, AO for analog output

SKU: STEM18072
₹108.00 ~~₹169.00~~
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Sensor
MQ-5 Methane Liquified Gas Sensor
Sensor
MQ-5 Methane Liquified Gas Sensor

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Operating Voltage: 5V DC

High sensitivity to LPG, natural gas, town gas

Small sensitivity to alcohol, smoke

Stable and long life

Simple drive circuit

Fast response

SKU: STEM18073
₹108.00 ~~₹181.00~~
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Sensor
MQ-6 Liquefied Petroleum Gas Sensor
Sensor
MQ-6 Liquefied Petroleum Gas Sensor

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High Sensitivity to LPG, iso-butane, propane

Small sensitivity to alcohol, smoke

Detection Range: 100 – 10,000 ppm iso-butane propane

Fast Response Time: <10s

Simple drive circuit

Heater Voltage: 5.0V

SKU: STEM18074
₹107.00 ~~₹134.00~~
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Sensor
MQ-7 High Sensitivity CO Carbon Monoxide Sensor
Sensor
MQ-7 High Sensitivity CO Carbon Monoxide Sensor

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Has better sensitive detection for carbon monoxide, which with lower conductivity in clean air

High quality double panel design

Power and TTL signal output indication

Has a long service life and reliable stability

Mainly used for SNO2 collection detection in family, factory, underground operation

SKU: STEM18075
₹120.00 ~~₹178.00~~
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Mechanical Tools
Multi Purpose Screwdriver Set
Mechanical Tools
Multi Purpose Screwdriver Set

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32 in 1 Mini Screwdriver Tool Set Kit with Magnetic Flexible Extension Rod, Precision Bits screw driver, computer, mobile repairing tool kit, watch repairing, laptop screwdriver set, Multicolor

SKU: STEM18222
₹155.00 ~~₹194.00~~
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IOT
Node MCU ( ESP8266)
IOT
Node MCU ( ESP8266)

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Open-source, Interactive, Programmable

Wi-Fi Module: ESP-12E module with 6 extra GPIOs

USB: Micro USB port for power, programming and debugging

Headers: 2 x 2.54 mm 15-pin header with access to GPIOs, SPI, UART, ADC and power pins

Drive Type: Dual high-power H-bridge

Flash size: 4 MB

Transfer rate: 110-460800 kbps

Miscellaneous: Reset and flash buttons

SKU: STEM18039
₹242.00 ~~₹303.00~~
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Wire and Cables
Node MCU Cable
Wire and Cables
Node MCU Cable

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USB – micro USB cable for power, programming and debugging

SKU: STEM18040
₹32.00 ~~₹56.00~~
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Passive Components
NPN Transistor – 2N3904(10 pcs)
Passive Components
NPN Transistor – 2N3904(10 pcs)

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Operating voltage: 2 V to 60 V

Peak Power O/P: 100 mA

Operating range: -65?C to 150?C

Electronic switching Device

Frequency Amplifier up to 100 mHz

SKU: STEM18057
₹29.00 ~~₹44.00~~
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Passive Components
NPN Transistor – BC547(10 pcs)
Passive Components
NPN Transistor – BC547(10 pcs)

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Collector-Emitter Volt (Vceo): 45 V

Collector Current (Ic): 100 mA

Power Dissipation (Ptot): 625 mW

Current-Gain-Bandwidth (ftotal): 300 MHz

Amplifier purposes

Switching purposes

Type: NPN

SKU: STEM18058
₹20.00 ~~₹31.00~~
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Electric Tools
Owon Digital Oscilloscope
Electric Tools
Owon Digital Oscilloscope

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OWON MTQ 1016B Analogue Oscilloscope – 10 MHz 1 Channel

SKU: STEM18229
₹10,499.00 ~~₹13,124.00~~
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Electronic Module
Piezo Big 5 volt-Buzzer
Electronic Module
Piezo Big 5 volt-Buzzer

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It is a Big 5 V Piezo Transducer

It is a signalling device, usually electronic

High quality piezoelectric sound (Beep)

2 Mounting holes distance: 42 mm

SKU: STEM18033
₹15.00 ~~₹24.00~~
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Sensor
PIR Motion Detector Module
Sensor
PIR Motion Detector Module

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Input Voltage: 4.8V – 20V DC

Current: 50uA(max)

Detecting distance: 7m(max)

Infrared technology (LHI778 probe design)

Sentry Angle: 120?

Connector: 3Pin 2.54mm pitch

Size(LxWxH): 24 x 32 x 25(mm)

SKU: STEM18081
₹72.00 ~~₹90.00~~
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Showing 76–90 of 170 results

MQ-135 Air Quality Sensor

MQ-135 Air Quality Sensor

MQ-2 Smoke Detection Sensor

MQ-2 Smoke Detection Sensor

MQ-3 Alcohol – Ethanol Sensor

MQ-3 Alcohol – Ethanol Sensor

MQ-4 Methane Natural Gas Sensor

MQ-4 Methane Natural Gas Sensor

MQ-5 Methane Liquified Gas Sensor

MQ-5 Methane Liquified Gas Sensor

MQ-6 Liquefied Petroleum Gas Sensor

MQ-6 Liquefied Petroleum Gas Sensor

MQ-7 High Sensitivity CO Carbon Monoxide Sensor

MQ-7 High Sensitivity CO Carbon Monoxide Sensor

Multi Purpose Screwdriver Set

Multi Purpose Screwdriver Set

Node MCU ( ESP8266)

Node MCU ( ESP8266)

Node MCU Cable

Node MCU Cable

NPN Transistor – 2N3904(10 pcs)

NPN Transistor – 2N3904(10 pcs)

NPN Transistor – BC547(10 pcs)

NPN Transistor – BC547(10 pcs)

Owon Digital Oscilloscope

Owon Digital Oscilloscope

Piezo Big 5 volt-Buzzer

Piezo Big 5 volt-Buzzer

PIR Motion Detector Module

PIR Motion Detector Module