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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
Mini DC-DC Boost Converter Board Voltage Step up Module 5V
$14.95 Save $18.00 RRP: $32.95
KSTEE 4 Way Charging Module, Fast Charge Module, 12V 24V to QC3.0 Power Buck USB Phone Charging Converter Board Power Converters
$18.95 Save $18.00 RRP: $36.95
DCDC Power Supply Module BuckBoost Negative Pressure Device for Operational Amplifier(-3.3V )
$9.95 Save $24.00 RRP: $33.95
Uadme Solar Charge Controller Board, CN3791 Charger MPPT Solar Panel Lithium Battery Charging Board 6V, with MPPT Function
$17.95 Save $18.00 RRP: $35.95
AMP 06A 1Hz-300MHZ 50 Ohm High Impedance Amplifier is Suitable for Donut Antenna Impedance Conversi
$21.95 Save $28.00 RRP: $49.95
2025 Dual Channel nced Mixer Module 9‑15G Low Noise Passive Up Down RF Frequency Conversion Mixer
$13.95 Save $14.00 RRP: $27.95
Adjustable Time Delay Module, Simple PLC Control Delay Switch Module Linkage Delay Control Easy To Install Elliptical Design 12V for Access Control
$19.95 Save $18.00 RRP: $37.95
2.4G NRF24L01+PA+LNA 1100m Wireless Transceiver Communication Module with SMA Antenna
$16.95 Save $18.00 RRP: $34.95
Wifi V2.0 Radio Telemetry Module for Pixhawk Flight Controller
$20.95 Save $2.00 RRP: $22.95
5-1900MHz for HF VHF Passive Mixer Module Frequency Mixer Module RMS-11 Frequency Up-Converter Down-Converter Module
$18.95
Charging Module, 2pcs Charging Module 1-8 Cell Nickel–Cadmium/Nickel–Metal Hydride Battery Charger Electronic Components(2-Cell(2S)) SXIRR
$16.95 Save $18.00 RRP: $34.95
2026 RF Mixer Module Dual Balanced Microwave Mixing Down Inverter RFin 1.5?4.5GHz RFout DC?1.5GHz
$14.95 Save $15.00 RRP: $29.95
50Pcs Access Control Card RFID Card 125KHz EM4100 TK4100 Smart Proximity Card RFID Tag Key for Acce
$19.95
Mobile Power Bank Module, Dual USB 5V 1A 2.1A Power Bank 18650 Lithium Batery Charger DIY Module LCD Display for Phone DIY Mobile Power Bank SMBZ0
$15.95 Save $18.00 RRP: $33.95
Regulated Power Module, Adjustable Positive Negative Power Supply Converter Board Accessories
$19.95 Save $18.00 RRP: $37.95
DC Buck Module USB to QC 3.0 Fast Charging Buck Voltage Regulator Power Module for Phone Tablet
$18.95 Save $18.00 RRP: $36.95
4 Series High Current Li ion Lithium Battery Charger Protection Board 14.4V 14.8V 16.8V
$14.95 Save $18.00 RRP: $32.95
12V Relay Module Digital Timing Delay Programmable Trigger Switch with Optocoupler Isolation
$18.95 Save $18.00 RRP: $36.95
DC-DC Boost Converter 4.5V-32V to 5V-35V Power Supply Step Up Module
$18.95 Save $18.00 RRP: $36.95
BERM Proximity Switch Waterproof 3‑Wire NPN NO Sensor PR12‑2DP DC12‑24V 50/60Hz 200mA
$21.95 Save $19.00 RRP: $40.95
100mm 4" Wet Diamond Grinding Disc Polishing Pad for Granite Marble(Granularity 2000)
$16.95 Save $18.00 RRP: $34.95
20Pcs Rivet Nut Kit M8x10 Aluminum Alloy Regular Flat Head Hardware Fastener Tool
$21.95 Save $19.00 RRP: $40.95
Water Level Controller Module Automatic Liquid Level Sensor Relay Board for Pump Valve 12V
$18.95 Save $18.00 RRP: $36.95
Thermocouple Temperature Sensor Waterproof Temp Probe Digital Transmitter Stainless Steel Silver Plated PTFE ‑50~350℃
$21.95 Save $19.00 RRP: $40.95
6 Sets Joystick Sensor Game Controller Module X Y Dual Axes Replacement Set Kit KY‑023
$21.95 Save $19.00 RRP: $40.95
DC 5-30V LED Display Delay On/Off Relay Module Trigger Cycle Delay Timer Switch
$16.95 Save $18.00 RRP: $34.95
1/2" Elbow Pipe Connector 90 Degree Angled Stainless Steel Female Threaded DN15
$18.95 Save $18.00 RRP: $36.95
Ultra light Ultra thin DC 3.5-5V to 3.3V DC-DC Step Down Buck Regulator Module
$14.95 Save $18.00 RRP: $32.95
TICFOX 5 Pcs Microcontroller TTL to RS485 Module Converter Module Strong Anti Interference Lightning Protection TTL to RS485 Adapter Board
$19.95 Save $18.00 RRP: $37.95
Emoshayoga Network Jack Module, ABS Jacks Modules Adapter Durable Shielded Easy Routing Dust Cover for 22-26AWG
$18.95 Save $18.00 RRP: $36.95
Rankomu Time Delay Relay 12v, Turn On Off Switch Module with Time Timing Adjustable Timer Switch Module
$17.95 Save $18.00 RRP: $35.95