NovelDIY Goods: Signal Generators, Thermometers and Testers at AliExpress

DC DC 9A 300W 150W 80W Buck Boost Converter Adjustable Step Down Buck Converter 5-40V To 1.2-35V Power module LED Driver XL4016

Price: $351.2

Old Price: $399.2

Roarkit DC DC 9A 300W 150W 80W Buck Boost Converter Adjustable Step Down Buck Converter 5-40V To 1.2-35V Power module LED Driver XL4016Converters And Converters

W1209WK Digital LED Thermostat Temperature Controller Smart Temp Sensor Board Module 12V DC + Waterproof NTC Sensor

Price: $4

Roarkit W1209WK Digital LED Thermostat Temperature Controller Smart Temp Sensor Board Module 12V DC + Waterproof NTC SensorThermometers

SMD LM2596s DC Step-Down Power Supply Module 3A Adjustable LM2596 Voltage Regulator 24V 12V 5V 3V

Price: $0.83

Roarkit SMD LM2596s DC Step-Down Power Supply Module 3A Adjustable LM2596 Voltage Regulator 24V 12V 5V 3VSurge Protectors

DC 5V 12V NE555 Adjustable Resistance Frequency Pulse Generator Module Single Channel Output for Arduino Smart Car

Price: $49.6

Old Price: $55.2

Roarkit DC 5V 12V NE555 Adjustable Resistance Frequency Pulse Generator Module Single Channel Output for Arduino Smart CarSignal Generators China

0.56 inch Mini Digital Voltmeter Ammeter DC 100V 10A Panel Amp Volt Voltage Current Meter Tester Blue Red Dual LED Display

Price: $1.99

Old Price: $2.1

Roarkit 0.56 inch Mini Digital Voltmeter Ammeter DC 100V 10A Panel Amp Volt Voltage Current Meter Tester Blue Red Dual LED DisplayVoltmeters China

10PCS 1X40 PIN Single Row Straight Female Pin Header 2.54MM PITCH Strip Connector Socket 140 40p 40PIN FOR PCB Arduino

Price: $1.71

Old Price: $1.9

Roarkit 10PCS 1X40 PIN Single Row Straight Female Pin Header 2.54MM PITCH Strip Connector Socket 140 40p 40PIN FOR PCB ArduinoConnectors

Metal Detector Kit Electronic Kit DC 3V-5V 60mm Non-contact Sensor Board Module DIY Electronic Part Metal Detector DIY Kit

Price: $104

Old Price: $122.4

Roarkit Metal Detector Kit Electronic Kit DC 3V-5V 60mm Non-contact Sensor Board Module DIY Electronic Part Metal Detector DIY KitMetal Detectors

1.2v 12v ZB2L3 18650 Li-ion Lithium Battery Capacity Tester + Resistance Lead-acid Battery Capacity Meter Discharge Tester

Price: $3.47

Roarkit 1.2v 12v ZB2L3 18650 Li-ion Lithium Battery Capacity Tester + Resistance Lead-acid Battery Capacity Meter Discharge Tester

GY-68 BMP180 GY68 Digital Barometric Pressure Sensor Board Module I2C Interface For Arduino Compatible with BMP085

Price: $0.9

Roarkit GY-68 BMP180 GY68 Digital Barometric Pressure Sensor Board Module I2C Interface For Arduino Compatible with BMP085Pressure Sensors

0.28 inch DC LED Digital Voltmeter 0-100V Voltage Meter Auto Car Mobile Power Voltage Tester Detector 12V Red Green Blue Yellow

Price: $1.1

Old Price: $1.15

Roarkit 0.28 inch DC LED Digital Voltmeter 0-100V Voltage Meter Auto Car Mobile Power Voltage Tester Detector 12V Red Green Blue YellowVoltmeters China

Micro USB DC 2CH Adjustable PWM Signal Generator Duty Cycle Pulse Frequency Module Digital LED Display Tube 5V 12V 24V DIY

Price: $120.8

Old Price: $151.2

Roarkit Micro USB DC 2CH Adjustable PWM Signal Generator Duty Cycle Pulse Frequency Module Digital LED Display Tube 5V 12V 24V DIYSignal Generators

Stainless Steel RTD PT100 Temperature Sensor 2B With 0.5 Meter 3 Cable Wires Platinum Thermal Galvanic Precision Probe Type

Price: $1.99

Roarkit Stainless Steel RTD PT100 Temperature Sensor 2B With 0.5 Meter 3 Cable Wires Platinum Thermal Galvanic Precision Probe TypeThermometers

1S/2S/3S/4S Lithium Battery Capacity Tester LED Display Board Power Level Indicator Module For 18650 Lithium Li-ion lipo Battery

Price: $0.96

Roarkit 1S/2S/3S/4S Lithium Battery Capacity Tester LED Display Board Power Level Indicator Module For 18650 Lithium Li-ion lipo BatteryTesters

DC 9V VGA Signal Generator LCD Tester 15 Different Output USB Battery Dual Power Supply

Price: $3.57

Roarkit DC 9V VGA Signal Generator LCD Tester 15 Different Output USB Battery Dual Power SupplySignal Generators

16 Channel 12-bit PWM/Servo Driver-I2C interface PCA9685 module Raspberry pi shield module servo shield For Arduino Raspberry Pi

Price: $4.94

Roarkit 16 Channel 12-bit PWM/Servo Driver-I2C interface PCA9685 module Raspberry pi shield module servo shield For Arduino Raspberry PiMotor Drivers

W1209 DC 12V LED Digital Thermostat Temperature Control Thermometer Thermo Controller Switch Module + NTC Sensor

Price: $0.93

Roarkit W1209 DC 12V LED Digital Thermostat Temperature Control Thermometer Thermo Controller Switch Module + NTC Sensor

NE555 Pulse Frequency Adjustable Duty Cycle Square Modules Rectangular Wave Signal Generator Stepper Motor Driver

Price: $0.76

Roarkit NE555 Pulse Frequency Adjustable Duty Cycle Square Modules Rectangular Wave Signal Generator Stepper Motor DriverSignal Generators

MAX9814 Microphone Amplifier Board Module Auto Gain Max 40dB/50dB/60dB Frequency 20Hz - 20 KHz 2.7V-5.5V With Pins for Arduino

Price: $2.24

Old Price: $2.8

Roarkit MAX9814 Microphone Amplifier Board Module Auto Gain Max 40dB/50dB/60dB Frequency 20Hz - 20 KHz 2.7V-5.5V With Pins for ArduinoElements And Parts Of Devices China

1S 2S 3S 4S 6S 7S 8S Series Lithium Battery Capacity Indicator Display Electric Vehicle Power Tester Li-Po Li-Ion Module

Price: $0.95

Roarkit 1S 2S 3S 4S 6S 7S 8S Series Lithium Battery Capacity Indicator Display Electric Vehicle Power Tester Li-Po Li-Ion ModuleTesters

USB Port Mini Discharge Load Resistor Digital Current Voltage Meter Tester With Switch 1A Green Led / 2A Red

Price: $0.8

Old Price: $1

Roarkit USB Port Mini Discharge Load Resistor Digital Current Voltage Meter Tester With Switch 1A Green Led / 2A RedVoltmeters

100cm 1M Waterproof NTC 10K 1% 3950 Thermistor Accuracy Temperature Sensor Wire Cable Probe For Arduino W1209 W1401

Price: $0.72

Old Price: $0.8

Roarkit 100cm 1M Waterproof NTC 10K 1% 3950 Thermistor Accuracy Temperature Sensor Wire Cable Probe For Arduino W1209 W1401Thermometers

Sensore Pressione MD-PS002 700KPaA Vacuum Sensor Pressure for Arduino Air pressure /tire pressure/Diffused silicon sensor 700Kpa

Price: $1.56

Roarkit Sensore Pressione MD-PS002 700KPaA Vacuum Sensor Pressure for Arduino Air pressure /tire pressure/Diffused silicon sensor 700KpaPressure Sensors China

Type-c/Micro/Mini USB 5V 1A 18650 TP4056 Lithium Battery Charger Module Charging Board With Protection Dual Functions 1A Li-ion

Price: $0.33

Roarkit Type-c/Micro/Mini USB 5V 1A 18650 TP4056 Lithium Battery Charger Module Charging Board With Protection Dual Functions 1A Li-ionHome And Garden Products China

MAX31855 Module K Type Thermocouple Temp Sensor 0-800 Degrees Temperature Measurement For Arduino

Price: $4.03

Roarkit MAX31855 Module K Type Thermocouple Temp Sensor 0-800 Degrees Temperature Measurement For ArduinoThermometers

12.6V 3S 18650 Li-po Li-ion Lithium Battery Packs Battery Capacity Indicator Meter Power Level Tester Module Display Board Panel

Price: $1.06

Roarkit 12.6V 3S 18650 Li-po Li-ion Lithium Battery Packs Battery Capacity Indicator Meter Power Level Tester Module Display Board PanelTesters

XL4015 5A Adjustable Power CC/CV Step-Down Charge Module Digital Voltmeter Ammeter Display LED Driver for Arduino

Price: $4.55

Old Price: $5.5

Roarkit XL4015 5A Adjustable Power CC/CV Step-Down Charge Module Digital Voltmeter Ammeter Display LED Driver for ArduinoCurrent Meters China

10pcs/lot Mini 360 2A DC/DC Buck Converter Step Down Power Supply Module 4.75V-23V To 1V-17V MINI360 LM2596

Price: $363.2

Old Price: $403.2

Roarkit 10pcs/lot Mini 360 2A DC/DC Buck Converter Step Down Power Supply Module 4.75V-23V To 1V-17V MINI360 LM2596Converters And Converters

5 Pair Connector Pin Header Strip 5pcs Male + 5pcs Female Single Row 40 Pin 2.54mm Strip Round Needle 1x40P PCB Gold Plated

Price: $2.37

Old Price: $2.5

Roarkit 5 Pair Connector Pin Header Strip 5pcs Male + 5pcs Female Single Row 40 Pin 2.54mm Strip Round Needle 1x40P PCB Gold PlatedConnectors China

Digital USB Mobile Power Charging Current Voltage Tester Meter Mini USB Charger Doctor Voltmeter Ammeter Turn Transparent Blue

Price: $1.07

Roarkit Digital USB Mobile Power Charging Current Voltage Tester Meter Mini USB Charger Doctor Voltmeter Ammeter Turn Transparent BlueVoltmeters

W1401 DC 12V 10A Digital Display Thermostat Temperature Controller Intelligent Thermostat Regulator with NTC Sensor Relay 220V

Price: $4.17

Old Price: $4.63

Roarkit W1401 DC 12V 10A Digital Display Thermostat Temperature Controller Intelligent Thermostat Regulator with NTC Sensor Relay 220VThermometers China

10Pcs/lot 2.54mm 1*40p 90 degree Right angle Single Row Male R/A 40 Pin Header Positive PCB Board Connector Pinheader

Price: $1.41

Roarkit 10Pcs/lot 2.54mm 1*40p 90 degree Right angle Single Row Male R/A 40 Pin Header Positive PCB Board Connector PinheaderConnectors China

4 Segment LED Power Battery Indicator level Audio Module 4-Digit Light Color Separation 12V Detection KA2284

Price: $0.8

Roarkit 4 Segment LED Power Battery Indicator level Audio Module 4-Digit Light Color Separation 12V Detection KA2284Testers

5 12V Car 0.36 Inch LED Digital Voltmeter Voltage Meter Adjustable Volt Detector Tester Monitor DC 2.7-32V 2 Wire

Price: $1.04

Old Price: $1.09

Roarkit 5 12V Car 0.36 Inch LED Digital Voltmeter Voltage Meter Adjustable Volt Detector Tester Monitor DC 2.7-32V 2 WireVoltmeters

MD-PS002 150KPaA Vacuum Sensor 150kpa for Arduino Air pressure /tire pressure/Diffused silicon

Price: $1.42

Old Price: $1.5

Roarkit MD-PS002 150KPaA Vacuum Sensor 150kpa for Arduino Air pressure /tire pressure/Diffused siliconPressure Sensors

1PCS W2809 W1209WK W1209 Digital LED Thermostat Temperature Controller Smart Temp Sensor Board Module 12V DC + Waterproof NTC

Price: $3.5

Old Price: $3.8

Roarkit 1PCS W2809 W1209WK W1209 Digital LED Thermostat Temperature Controller Smart Temp Sensor Board Module 12V DC + Waterproof NTCThermometers

LCR-T4 Mega328 M328 LCD 128*64 9V Multimetr Transistor Tester ESR Meter Diode Triode Capacitance ESR Meter MOS PNP NPN LCR+CASE

Price: $5.72

Old Price: $5.9

Roarkit LCR-T4 Mega328 M328 LCD 128*64 9V Multimetr Transistor Tester ESR Meter Diode Triode Capacitance ESR Meter MOS PNP NPN LCR+CASEDigital Multimeters

Micro USB 5V 1A 18650 TP4056 Lithium Battery Charger Module Charging Board With Protection + MT3608 2A DC-DC Step Up Converter

Price: $0.48

Roarkit Micro USB 5V 1A 18650 TP4056 Lithium Battery Charger Module Charging Board With Protection + MT3608 2A DC-DC Step Up ConverterHome And Garden Products

AD9833 Programmable Microprocessors Serial Interface Module Sine Square Wave DDS Signal Generator

Price: $3.29

Roarkit AD9833 Programmable Microprocessors Serial Interface Module Sine Square Wave DDS Signal GeneratorSignal Generators

XL7015 0.8A DC-DC Dc converter Step-down module 5V-80V Wide voltage input XL7005A LM2596

Price: $0.77

Old Price: $1.1

Roarkit XL7015 0.8A DC-DC Dc converter Step-down module 5V-80V Wide voltage input XL7005A LM2596Converters And Converters

10pcs 2.54mm Round Female Header tin 40P Single Row 40Pin, 0.1" Hole connector for DS18B20 and Crystals and PCB

Price: $1.83

Roarkit 10pcs 2.54mm Round Female Header tin 40P Single Row 40Pin, 0.1" Hole connector for DS18B20 and Crystals and PCBConnectors

VL6180/VL53L0X/VL53L1X Time of Flight (ToF) Laser Ranging Sensor Module TOF050C TOF200C TOF400C 50CM/2M/4M IIC For Arduino STM32

Price: $5.81

Roarkit VL6180/VL53L0X/VL53L1X Time of Flight (ToF) Laser Ranging Sensor Module TOF050C TOF200C TOF400C 50CM/2M/4M IIC For Arduino STM32Laser Rangefinders

DC 3V-5V CJMCU-5351 Si5351A Si5351 I2C Clock Generator Breakout Board Module Signal Generator Clock 8KHz-160MHz For Arduino

Price: $2.85

Old Price: $3.28

Roarkit DC 3V-5V CJMCU-5351 Si5351A Si5351 I2C Clock Generator Breakout Board Module Signal Generator Clock 8KHz-160MHz For ArduinoSignal Generators

L9110 L9110S / HG7881 HG7881CP Two Road Motor Driven Module For Arduino 2 Channel DC Stepper Motor Driver Board H Bridge

Price: $0.76

Old Price: $0.85

Roarkit L9110 L9110S / HG7881 HG7881CP Two Road Motor Driven Module For Arduino 2 Channel DC Stepper Motor Driver Board H BridgeMotor Drivers

DC 3V-5V CJMCU-5351 Si5351A Si5351 I2C Clock Generator Breakout Board Module Signal Generator Clock 8KHz-160MHz For Arduino

Price: $4.51

Roarkit DC 3V-5V CJMCU-5351 Si5351A Si5351 I2C Clock Generator Breakout Board Module Signal Generator Clock 8KHz-160MHz For ArduinoSignal Generators China

1/2/4/6/8 Way Channel 5V DC Relay Module Solid State High Low Level G3MB-202P SSR AVR DSP for Arduino Diy Kit

Price: $1.01

Old Price: $1.12

Roarkit 1/2/4/6/8 Way Channel 5V DC Relay Module Solid State High Low Level G3MB-202P SSR AVR DSP for Arduino Diy KitRelay China

80PCS/Pack 1X40 PIN Single Row Straight Female Pin Header 2.54MM PITCH Strip Connector Socket 140 40p 40PIN FOR PCB Arduino

Price: $3.6

Old Price: $4

Roarkit 80PCS/Pack 1X40 PIN Single Row Straight Female Pin Header 2.54MM PITCH Strip Connector Socket 140 40p 40PIN FOR PCB ArduinoConnectors

MAX4466 Electret Microphone Amplifier Module Adjustable Gain OUT GND VCC Board For Arduino DC 2.4-5V

Price: $1.21

Old Price: $1.35

Roarkit MAX4466 Electret Microphone Amplifier Module Adjustable Gain OUT GND VCC Board For Arduino DC 2.4-5VElements And Parts Of Devices

AHT10 AHT20 AHT21 High Precision Digital Temperature and Humidity Sensor Measurement Module I2C Communication Replace SHT20

Price: $1.04

Old Price: $1.48

Roarkit AHT10 AHT20 AHT21 High Precision Digital Temperature and Humidity Sensor Measurement Module I2C Communication Replace SHT20

HTU31D Temperature And Humidity Sensor Module I2C High-Precision Probe HTU21D Upgrade Version HTU31 For Arduino DC 3.3~5.5V

Price: $1.99

Old Price: $2.4

Roarkit HTU31D Temperature And Humidity Sensor Module I2C High-Precision Probe HTU21D Upgrade Version HTU31 For Arduino DC 3.3~5.5V

VL6180X VL53L0X VL53L1X Time-of-Flight (ToF) Laser Ranging Built-in MCU Algorithm TOF050F TOF200F TOF400F 50CM/2M/4M IIC I2C

Price: $8

Roarkit VL6180X VL53L0X VL53L1X Time-of-Flight (ToF) Laser Ranging Built-in MCU Algorithm TOF050F TOF200F TOF400F 50CM/2M/4M IIC I2CLaser Rangefinders China

50Wx2 TPA3116D2 Dual Channel DC 4.5-27V TPA3116 Digital Power Amplifier Board Two Channel Stereo High Efficiency 50W + 50W

Price: $6.17

Old Price: $6.5

Roarkit 50Wx2 TPA3116D2 Dual Channel DC 4.5-27V TPA3116 Digital Power Amplifier Board Two Channel Stereo High Efficiency 50W + 50WElements And Parts Of Devices China

MAX31865 High Precision Isolated Temperature Collector Module PT100 Serial Port Output Upper Computer Software Debugging

Price: $11.88

Old Price: $16.97

Roarkit MAX31865 High Precision Isolated Temperature Collector Module PT100 Serial Port Output Upper Computer Software Debugging

DC 5V WCS1800 Hall Current Detection Sensor Module 35A Precise With Short Circuit Overcurrent Signal Lamp A/D conversion

Price: $8.83

Old Price: $9.81

Roarkit DC 5V WCS1800 Hall Current Detection Sensor Module 35A Precise With Short Circuit Overcurrent Signal Lamp A/D conversionCurrent Meters

B900W Input 8-60V to 10-120V 900W DC Converter High Precise LED Control Boost Converter DIY Voltage Transformer Module Regulator

Price: $15

Roarkit B900W Input 8-60V to 10-120V 900W DC Converter High Precise LED Control Boost Converter DIY Voltage Transformer Module RegulatorVoltmeters

DC 12V Battery Undervoltage Low Voltage Cut off Automatic Switch Recovery Protection Module Charging Controller Protection Board

Price: $3.07

Old Price: $3.23

Roarkit DC 12V Battery Undervoltage Low Voltage Cut off Automatic Switch Recovery Protection Module Charging Controller Protection BoardTesters China

SHT30 I2C Interface SHT31 Digital Output Temperature 3V 5V SHT31-D Humidity Sensor Module Accuracy Breakout Weather for Arduino

Price: $1.8

Old Price: $2

Roarkit SHT30 I2C Interface SHT31 Digital Output Temperature 3V 5V SHT31-D Humidity Sensor Module Accuracy Breakout Weather for ArduinoThermometers

Indoor Air SGP30 Measurement Gas Sensor Multi-pixel TVOC/eCO2 Quality Formaldehyde Carbon Dioxide Detector Tester For Arduino

Price: $5.7

Roarkit Indoor Air SGP30 Measurement Gas Sensor Multi-pixel TVOC/eCO2 Quality Formaldehyde Carbon Dioxide Detector Tester For ArduinoGas Analyzers

DC 0-100V 0-50V 5A 10A LCD Digital Voltmeter Ammeter Wattmeter Voltage Current Power Meter Volt Detector Tester 250W 1000W

Price: $3.79

Roarkit DC 0-100V 0-50V 5A 10A LCD Digital Voltmeter Ammeter Wattmeter Voltage Current Power Meter Volt Detector Tester 250W 1000WCurrent Meters China

5PCS/LOT AD9833 Programmable Microprocessors Serial Interface Module Sine Square Wave DDS Signal Generator

Price: $18.32

Old Price: $19.28

Roarkit 5PCS/LOT AD9833 Programmable Microprocessors Serial Interface Module Sine Square Wave DDS Signal GeneratorSignal Generators

SX1308 DC-DC 2-24V to 2-28V 1.2MHz 2A Adjustable Step Up Power Module Step-up Booster Converter Transformer

Price: $36.8

Old Price: $46.4

SX1308 DC-DC 2-24V to 2-28V 1.2MHz 2A Adjustable Step Up Power Module Step-up Booster Converter TransformerConverters And Converters