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Under $20 Modulators

Shop the best prices on 613 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 Australia.

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1 - 32 of 613
PCF8575 IO Expander Module I2C To 16IO
$18.95
Uadme Amplifier Board, Mini Headphone Amplifier Module 3.5mm Interface Earphone Preamplifier Board DC 3‑12V MAX4410, Low Distortion
$18.95 Save $22.00 RRP: $40.95
Voltage to Frequency Converter Module 0‑10V to 0‑10KHz Analog Signal Conversion Board
$19.95 Save $21.00 RRP: $40.95
MOS FET Driver Module High Power PWM Adjustment Electronic Switch Control Board 3-20V to 3.7-27VDC 10A
$13.95 Save $21.00 RRP: $34.95
10Pcs T5577 EM4305 Copy Rewritable Writable RFID Tag Card,Mixed Color
$14.95 Save $1.00 RRP: $15.95
Buck Power Module Constant Current Voltage Ammeter DC6?40V to DC2?36V 20A 300W Power
$12.95 Save $26.00 RRP: $38.95
DCDC Power Supply Module BuckBoost Negative Pressure Device for Operational Amplifier(-3.3V )
$8.95 Save $30.00 RRP: $38.95
Low Voltage DC 1.8V to 15V 2A Mini PWM Motor Speed Controller Regulator Control Module
$19.95 Save $21.00 RRP: $40.95
80kV High Voltage Pulse Generator Inverter Super Arc Pulse Ignition Module 6‑12V
$21.95 Save $21.00 RRP: $42.95
DEWIN Capacitive Touch Switch Module, Intelligent Control Sensor Bistable State Sensitive Response for Night Light DC 3V‑18V
$15.95 Save $21.00 RRP: $36.95
40 * 40mm Thermoelectric Power Generator High Temperature Generation Element Peltier Module TEG High Temperature 150℃
$21.95 Save $17.00 RRP: $38.95
Thermometer Hygrometer, Temperature Humidity Sensor Module ABS Compact Low Temp Resistance Humidity Module XGMVE
$18.95 Save $22.00 RRP: $40.95
Level Converter Module, High Efficiency RS422 to TTL Bidirectional UART Serial Port Conversion Board 5V
$19.95 Save $21.00 RRP: $40.95
Charging Module, 2pcs Charging Module 1-8 Cell Nickel–Cadmium/Nickel–Metal Hydride Battery Charger Electronic Components(8-Cell(8S)) 0APHN
$18.95 Save $22.00 RRP: $40.95
Boost Module, 2Pcs 3.7V to 5V Boost Module 2A Dual USB with LED Light for 18650 Lithium Battery
$20.95 Save $21.00 RRP: $41.95
50 Pcs Lilypad LED Module, White LED High Quality Wearable Surface Mounted LED DIY Kit for Arduino 3~5V
$19.95 Save $21.00 RRP: $40.95
Electronic Board, DC-DC Adjustable 93% Conversion 8-80V To 1.25V-20V Module Accurate for Car Power Supply SU8SV
$20.95 Save $21.00 RRP: $41.95
Backup Battery Switching Module, 12V 150W 12A Automatic Switching Battery High Power Automatic Industrial Relay Board SDMLX
$20.95 Save $21.00 RRP: $41.95
4-Way MOS Tube Module, 4‑Way MOS Tube Module Field Effect PLC Amplifies Board with Input Output Signal Indicator
$18.95 Save $22.00 RRP: $40.95
DEWIN Charging Module, 2Pcs Charging Module 1-8 Cell Nickel–Cadmium/Nickel–Metal Hydride Battery Charger Electronic Components(8-Cell(8S))
$18.95 Save $22.00 RRP: $40.95
Optocoupler Isolation Board, Optical Isolator Module 817 3.6‑30V PCB 8 Channel Driver Photoelectric Isolated Module for Relays 8H0E0
$18.95 Save $22.00 RRP: $40.95
Module atténuateur de commande numérique parallèle direct à atténuateur RF CNC PE4302
$20.95 Save $6.00 RRP: $26.95
Physics Electrical Slide Rheostat Resistance Laboratory Researching Tool 1.5A 50
$16.95 Save $22.00 RRP: $38.95
100 Pieces 10 Values Variable Resistance Adjustable Trimmer Potentiometer Rheostat with Plastic Box 500 Ohm-1 Mt
$19.95 Save $12.00 RRP: $31.95
1.8 inch SPI TFT LCD Display Module ST7735 128x160 51/AVR/STM32/ARM 8/16 bit BQ6NR
$19.95 Save $22.00 RRP: $41.95
Digital Amplifier Board Low Power Consumption DualChannel USB Charging o Stereo Car Speaker Amplifier Board
$17.95 Save $17.00 RRP: $34.95
Full Automatic Water Level Controller PCB Low Consumption Liquid Level Detection Sensor Module DC5V
$21.95 Save $21.00 RRP: $42.95
DC-DC 3V 5V 12V to 19V 24V 30V 36V High Power Adjustable Step-up Boost Converter Regulator Module KZQXD
$17.95 Save $21.00 RRP: $38.95
Uadme 2Pcs NiMH Battery Charging Board,CC Battery Charging Board Portable Wear Proof CV Battery Charging Module 1A 3V(MRB048C)
$22.95 Save $21.00 RRP: $43.95
Step Up Converter Module Booster DCDC Boost Power Supply Board Voltage Regulator XL6019
$21.95 Save $21.00 RRP: $42.95
o Transmitter Module Mini Wireless Microphone Pickup V4.0FM Emission MIC Core Board 0.7‑9V
$19.95 Save $21.00 RRP: $40.95
GY-302 Digital Light Intensity Module BH1750 Chip Integration Module 3-5V Power Supply
$17.95 Save $21.00 RRP: $38.95