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Under $20 Modulators

Shop the best prices on 949 great value under $20 modulators. Shopping for modulators is easy with Fruugo, with SALE discounts, offers and savings on many brands. Buy modulators online safely with Fruugo, with secure payment and fast shipping to Singapore.

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1 - 32 of 949
PCF8575 IO Expander Module I2C To 16IO
$15.95
Rankomu Fan Speed Controller,1 Channel Temperature Control Board for 2‑3 Wire 5‑12V Fans
$20.95 Save $18.00 RRP: $38.95
DEWIN Fan Speed Controller, Fan Speed Controller 1 Channel Temperature Control Board for 2‑3 Wire 5‑12V Fans
$20.95 Save $18.00 RRP: $38.95
Uadme Mobile Charging Module, 5 Ports DualWay Micro Type C USB Fast Charging Board 4.5‑13.5V
$21.95 Save $18.00 RRP: $39.95
Risegun Single Circuit 2-3 Wire Small Size Shutdown 5V-12V Fan Temperature Control Governor Weak Current Chassis Temperature Control Noise Reduction
$20.95 Save $18.00 RRP: $38.95
Uadme Amplifier Board, Mini Headphone Amplifier Module 3.5mm Interface Earphone Preamplifier Board DC 3‑12V MAX4410, Low Distortion
$15.95 Save $19.00 RRP: $34.95
Voltage to Frequency Converter Module 0‑10V to 0‑10KHz Analog Signal Conversion Board
$16.95 Save $18.00 RRP: $34.95
MOS FET Driver Module High Power PWM Adjustment Electronic Switch Control Board 3-20V to 3.7-27VDC 10A
$11.95 Save $18.00 RRP: $29.95
10Pcs T5577 EM4305 Copy Rewritable Writable RFID Tag Card,Mixed Color
$12.95 Save $1.00 RRP: $13.95
Buck Power Module Constant Current Voltage Ammeter DC6?40V to DC2?36V 20A 300W Power
$10.95 Save $23.00 RRP: $33.95
DCDC Power Supply Module BuckBoost Negative Pressure Device for Operational Amplifier(-3.3V )
$7.95 Save $26.00 RRP: $33.95
ADE-6 High Linear Low Noise RF Up And Down Frequency Conversion Passive Mixer(0.05-250MHz)
$18.95 Save $12.00 RRP: $30.95
Low Voltage DC 1.8V to 15V 2A Mini PWM Motor Speed Controller Regulator Control Module
$16.95 Save $18.00 RRP: $34.95
80kV High Voltage Pulse Generator Inverter Super Arc Pulse Ignition Module 6‑12V
$18.95 Save $18.00 RRP: $36.95
DEWIN Capacitive Touch Switch Module, Intelligent Control Sensor Bistable State Sensitive Response for Night Light DC 3V‑18V
$13.95 Save $18.00 RRP: $31.95
Uadme Delay Module, Time Delay Relay, Programmable Delay Relay Module Dual Way Control Reverse Connection Protection Timer Relay for Car Buzzer DC
$21.95 Save $18.00 RRP: $39.95
8 Slots 13.56MHZ/125KHZ ChameleonU Contactless Smartcard Emulator
$19.95 Save $3.00 RRP: $22.95
40 * 40mm Thermoelectric Power Generator High Temperature Generation Element Peltier Module TEG High Temperature 150℃
$18.95 Save $15.00 RRP: $33.95
DEWIN USB Adjustable Power Module,DCDC USB Adjustable Power Supply Module Boost Voltage Converter 5V to 3.3V 9V 12V 24V
$19.95 Save $18.00 RRP: $37.95
HBV-1517 Camera Module Wide-angle Lens USB Camera Module Uses Hm1355 Chip, 30 * 25 * 14mm/1.2 * 1.0 * 0.6in
$20.95 Save $19.00 RRP: $39.95
Thermometer Hygrometer, Temperature Humidity Sensor Module ABS Compact Low Temp Resistance Humidity Module XGMVE
$16.95 Save $18.00 RRP: $34.95
o Amplifier, Digital Power Amplifier Board Preamp Module Dual Channel Preamplifier Tone Board for Digital Amplifier DC 12V‑24V 37C5R
$20.95 Save $18.00 RRP: $38.95
Level Converter Module, High Efficiency RS422 to TTL Bidirectional UART Serial Port Conversion Board 5V
$16.95 Save $18.00 RRP: $34.95
Stepper Motor Controller Module, PWM Pulse Speed Regulation CW and CCW Control Board DC 8‑24V
$19.95 Save $19.00 RRP: $38.95
DC to DC Buck Module 100A Double Rectifier Bridge Large Energy Storage Inductor PWM Voltage Regulator, High Conversion Rate
$22.95 Save $18.00 RRP: $40.95
Charging Module, 2pcs Charging Module 1-8 Cell Nickel–Cadmium/Nickel–Metal Hydride Battery Charger Electronic Components(8-Cell(8S)) 0APHN
$16.95 Save $18.00 RRP: $34.95
Boost Module, 2Pcs 3.7V to 5V Boost Module 2A Dual USB with LED Light for 18650 Lithium Battery
$17.95 Save $18.00 RRP: $35.95
Timer Module AC100V-250V Adjustable Continuous Cycle Timer Delay On/Off Switch Relay Module
$20.95 Save $18.00 RRP: $38.95
50 Pcs Lilypad LED Module, White LED High Quality Wearable Surface Mounted LED DIY Kit for Arduino 3~5V
$16.95 Save $18.00 RRP: $34.95
Electronic Board, DC-DC Adjustable 93% Conversion 8-80V To 1.25V-20V Module Accurate for Car Power Supply SU8SV
$17.95 Save $18.00 RRP: $35.95
Backup Battery Switching Module, 12V 150W 12A Automatic Switching Battery High Power Automatic Industrial Relay Board SDMLX
$17.95 Save $18.00 RRP: $35.95
4-Way MOS Tube Module, 4‑Way MOS Tube Module Field Effect PLC Amplifies Board with Input Output Signal Indicator
$16.95 Save $18.00 RRP: $34.95