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Under $20 Modulators

Shop the best prices on 250 great value under $20 modulators. Shopping for modulators is easy with Fruugo, with SALE discounts, offers and savings on Dirtypigs. Buy modulators online safely with Fruugo, with secure payment and fast shipping to New Zealand.

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1 - 32 of 250
PCF8575 IO Expander Module I2C To 16IO
$21.95
DEWIN Capacitive Touch Switch Module, Intelligent Control Sensor Bistable State Sensitive Response for Night Light DC 3V‑18V
$18.95 Save $25.00 RRP: $43.95
Digital Amplifier Board Low Power Consumption DualChannel USB Charging o Stereo Car Speaker Amplifier Board
$20.95 Save $21.00 RRP: $41.95
DC to DC Converter, Adjustable Voltage Reverse Connection Protection, 2 Layer Circuit Board Voltage Regulator Module
$22.95 Save $25.00 RRP: $47.95
Button Key Module Keypad Board 2x4 Matrix 8 Push Micro Switch for Single Chip Microcomputer
$17.95 Save $25.00 RRP: $42.95
4-channel IIC I2C Logic Level 5V 3.3V Bi Directional Converter Module
$17.95 Save $25.00 RRP: $42.95
12V Car Light Control Switch Photoresistor Relay Module Photosensitive Sensor TP
$20.95 Save $25.00 RRP: $45.95
RF AM Detector Module High Sensitivity AM RF Envelope Radio Signal Detection Module
$20.95 Save $13.00 RRP: $33.95
Rewritable Rfid Silicone Wristband 125khz/13.56mhz For Access Control & Cloning Dirtypigs
$19.95 Save $3.00 RRP: $22.95
Uadme Battery Protection Board-Battery Charge Discharge Board nce Charge Discharge Module 3S 60A 12.6V BMS for Lithium Battery
$19.95 Save $25.00 RRP: $44.95
Mini Headphone Amplifier Module SMD Technology Interface 3.5mm Earphone Preamplifier Board for DC 3‑12V M AX4410 Earphone for DIY o Devices
$21.95 Save $26.00 RRP: $47.95
Optocoupler Isolation Board, 8 Channel Driver Photoelectric Isolated Module 817 3.6‑30V WAKB1
$22.95 Save $25.00 RRP: $47.95
RFID Card Copier Duplicator for Access Control, 125KHz/13.56MHz NFC Encrypted Tag Reader Writer
$20.95 Save $98.05 RRP: $119.00
High Sensitivity Microphone o Amplifier Module Output 20dB Gain Low Noise DC 3.3V/5V
$17.95 Save $25.00 RRP: $42.95
DEWIN 5Pcs o Amplifier Board 200 Times Gain Sound Speaker Amplifier Module 5V-12V Input o Power Amplifier Module for Ek1236 L1P8
$22.95 Save $25.00 RRP: $47.95
Electric Building Block Mosfet Switch IRF540 Isolated Power Module
$15.95 Save $20.00 RRP: $35.95
Thermometer Hygrometer, Temperature Humidity Sensor Module ABS Compact Low Temp Resistance Humidity Module XGMVE
$22.95 Save $25.00 RRP: $47.95
TICFOX Temperature and Humidity Sensor Analogue Voltage 0-3V ABS Compact Low Temp Resistance Humidity Module
$22.95 Save $25.00 RRP: $47.95
Amplified Board Module Two Channel Design Stable Durable Dynamic Microphone Preamplifier Board
$20.95 Save $25.00 RRP: $45.95
Hand Sweep Sensor Switch Module 5-24VDC for Cupboard Wardrobe LED Light
$20.95 Save $25.00 RRP: $45.95
NE555 Pulse Frequency Generator Adjustable Duty Cycle Signal Generator Board Module
$20.95 Save $25.00 RRP: $45.95
DEWIN Infrared Reflective Sensor Module, PCB Capacitor Discharge Circuit Breaker Board for Assembly Line DC 3.3‑5V
$19.95 Save $25.00 RRP: $44.95
DEWIN Charging Module, 2Pcs Charging Module 1-8 Cell Nickel–Cadmium/Nickel–Metal Hydride Battery Charger Electronic Components(8-Cell(8S))
$22.95 Save $25.00 RRP: $47.95
GY-302 Digital Light Intensity Module BH1750 Chip Integration Module 3-5V Power Supply
$20.95 Save $25.00 RRP: $45.95
Relay Module Bistable State 1Way StartStop SelfLocking Microcomputer Automobile Modification Switch(5V )
$20.95 Save $25.00 RRP: $45.95
1A 4.2V 3.7V 18650 LiPo Li ion Lithium Battery Charger MPPT Solar Charge Controller Module(without Pin )
$20.95 Save $25.00 RRP: $45.95
1pc 24‑Bit WS2812 5050 RGB LED Ring Lamp Light with Integrated Drivers
$20.95 Save $25.00 RRP: $45.95
LED Display Tube Module 4-Digit 7-Segment Fits for Arduino Use Library TM1637.hRed
$20.95 Save $25.00 RRP: $45.95
Dual USB Output 9V/12V/24V To 5V 3A DC‑DC Step Down Power Charger Module
$17.95 Save $25.00 RRP: $42.95
TTL to RS232 Module Abrasion Performance Fine Workmanship Plastic Texture Adapter Module
$20.95 Save $25.00 RRP: $45.95
Step Up Boost Liion Battery Charge Module Battery Charger Board DDTCCRUB 2S1A
$20.95 Save $25.00 RRP: $45.95
Step Up Boost Liion Battery Charger Module Battery Charger Board DDTCCRUB 3S1A
$20.95 Save $25.00 RRP: $45.95