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Under $20 Modulators

Shop the best prices on 247 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 247
PCF8575 IO Expander Module I2C To 16IO
$21.95
Uadme Amplifier Board, Mini Headphone Amplifier Module 3.5mm Interface Earphone Preamplifier Board DC 3‑12V MAX4410, Low Distortion
$22.95 Save $25.00 RRP: $47.95
MOS FET Driver Module High Power PWM Adjustment Electronic Switch Control Board 3-20V to 3.7-27VDC 10A
$15.95 Save $25.00 RRP: $40.95
Buck Power Module Constant Current Voltage Ammeter DC6?40V to DC2?36V 20A 300W Power
$15.95 Save $30.00 RRP: $45.95
DCDC Power Supply Module BuckBoost Negative Pressure Device for Operational Amplifier(-3.3V )
$10.95 Save $35.00 RRP: $45.95
High Sensitivity Microphone o Amplifier Module Output 20dB Gain Low Noise DC 3.3V/5V
$17.95 Save $25.00 RRP: $42.95
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
Thermometer Hygrometer, Temperature Humidity Sensor Module ABS Compact Low Temp Resistance Humidity Module XGMVE
$22.95 Save $25.00 RRP: $47.95
Charging Module, 2pcs Charging Module 1-8 Cell Nickel–Cadmium/Nickel–Metal Hydride Battery Charger Electronic Components(8-Cell(8S)) 0APHN
$22.95 Save $25.00 RRP: $47.95
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
Physics Electrical Slide Rheostat Resistance Laboratory Researching Tool 1.5A 50
$19.95 Save $26.00 RRP: $45.95
Digital Amplifier Board Low Power Consumption DualChannel USB Charging o Stereo Car Speaker Amplifier Board
$20.95 Save $21.00 RRP: $41.95
10Pcs T5577 EM4305 Copy Rewritable Writable RFID Tag Card,Mixed Color
$21.95 Save $12.00 RRP: $33.95
DC-DC 3V 5V 12V to 19V 24V 30V 36V High Power Adjustable Step-up Boost Converter Regulator Module KZQXD
$20.95 Save $25.00 RRP: $45.95
GY-302 Digital Light Intensity Module BH1750 Chip Integration Module 3-5V Power Supply
$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
TICFOX Temperature and Humidity Sensor Analogue Voltage 0-3V ABS Compact Low Temp Resistance Humidity Module
$22.95 Save $25.00 RRP: $47.95
100pcs Momentary Tactile Push Button Switch Mini Micro Tact Switch Accessory 6 x 6 x 4.3mm
$22.95 Save $7.00 RRP: $29.95
Step Up Boost Liion Battery Charge Module Battery Charger Board DDTCCRUB 2S1A
$20.95 Save $25.00 RRP: $45.95
4 Digit 7 Segment Digital Tube Module LED Display Module I2C Interface DC 5V/3.3V DM43B04
$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
MAX4466 Microphone Amplifier Module Sound Sensor 2.4V to 5.5V Microphone Preamplifier
$20.95 Save $25.00 RRP: $45.95
Amplified Board Module Two Channel Design Stable Durable Dynamic Microphone Preamplifier Board
$20.95 Save $25.00 RRP: $45.95
DC-DC Voltage Step Down Power Supply Buck Module 12V 24V 6V-32V to 5V QC3.0 USB Fast Charging
$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
Voltage Control Adapter Module 4 Road 817 Optocoupler Anti Interference Photoelectric Isolation Module
$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
Voice Control Delay Switch Sound Activated Delay Module DC 3-9V
$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
Hand Sweep Sensor Switch Module 5-24VDC for Cupboard Wardrobe LED Light
$20.95 Save $25.00 RRP: $45.95