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Lithium Battery Capacity Indicator Voltmeter Voltage Tester 5V 2A Dual USB Output 12.6V for 3pcs 3.7V 4.2V Lithium Batteries Lithium Battery Capacity Indicator Voltmeter Voltage Tester 5V 2A Dual USB Output 12.6V for 3pcs 3.7V 4.2V Lithium Batteries 1.Description:   It is a dual display Lithium Battery Capacity Indicator.It can measure 3.7V or 4.2V battery and support dual USB output.   2.Feature:   1>.Dual display   2>.Dual USB output ... $4.31
$5.99
SKU: 15192
$4.31
$5.99

28

Red Display Lithium Battery Capacity Indicator Voltmeter ON/OFF Controller Voltage Tester 12.6V for 12V Lead-acid Battery or 4pcs 3.7V 4.2V Lithium Batteries Red Display Lithium Battery Capacity Indicator Voltmeter ON/OFF Controller Voltage Tester 12.6V for 12V Lead-acid Battery or 4pcs 3.7V 4.2V Lithium Batteries 1.Description:   It is a dual display Lithium Battery Capacity Indicator.It can measure 3.7V or 4.2V battery and support dual USB output.   2.Feature:   1>.Dual display   2>.Dual USB output ... $4.02
$5.59
SKU: 15189
$4.02
$5.59

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Dual Modbus Relay Module 2Bit Modbus-RTU Switch Signal Input Output RS485 TTL Controller Dual Modbus Relay Module 2Bit Modbus-RTU Switch Signal Input Output RS485 TTL Controller 1.Description:   LC 2 channel Modbus relay module equipped with mature and stable 8-bit MCU and RS485 level communication chip,adopt standard MODBUS RTU format RS485 communication protocol. It can realize 2bit input signal detec... $4.31
$5.99
SKU: 15045
$4.31
$5.99

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4 Channel Modbus Relay Module 4Bit Modbus-RTU Switch Signal Input Output RS485 TTL Controller 4 Channel Modbus Relay Module 4Bit Modbus-RTU Switch Signal Input Output RS485 TTL Controller 1.Description:   LC 4 channel Modbus relay module equipped with mature and stable 8-bit MCU and RS485 level communication chip,adopt standard MODBUS RTU format RS485 communication protocol. It can realize 4bit input signal detec... $5.75
$7.99
SKU: 15044
$5.75
$7.99

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12V to 3.3V 2-Channel Optocoupler Isolator Photoelectric Isolation Module Level Voltage Converter 2Bit NPN Output PLC Signal Converter 12V to 3.3V 2-Channel Optocoupler Isolator Photoelectric Isolation Module Level Voltage Converter 2Bit NPN Output PLC Signal Converter 1.Description:   DST-1R2P-N is a 2CH optocoupler isolator for signal converter.It is used for digital signal one-way conversion and NPN output.   2.Features:   1>.Optocoupler isolator   2>.Co... $3.95
$5.49
SKU: 15023
$3.95
$5.49

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3.3V to 24V 8-Channel Optocoupler Isolator Photoelectric Isolation Module Level Voltage Converter 8Bit PNP Output PLC Signal Converter 3.3V to 24V 8-Channel Optocoupler Isolator Photoelectric Isolation Module Level Voltage Converter 8Bit PNP Output PLC Signal Converter 1.Description:   DST-1R8P-P is a 8CH optocoupler isolator for signal converter.It is used for digital signal one-way conversion and PNP output.   2.Features:   1>.Optocoupler isolator   2>.Co... $7.19
$9.99
SKU: 15022
$7.19
$9.99

29

5V to 3.3V 8-Channel Optocoupler Isolator Photoelectric Isolation Module Level Voltage Converter 8Bit NPN Output PLC Signal Converter 5V to 3.3V 8-Channel Optocoupler Isolator Photoelectric Isolation Module Level Voltage Converter 8Bit NPN Output PLC Signal Converter 1.Description: DST-1R8P-N is a 8CH optocoupler isolator for signal converter.It is used for digital signal one-way conversion and NPN output.   2.Features:   1>.Optocoupler isolator   2>.Conversio... $7.19
$9.99
SKU: 15021
$7.19
$9.99

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16 Channel PLC Amplifier Module Isolated Transistor Controller NPN Signal Converter 16bit PLC Protector Optocoupler 16 Channel PLC Amplifier Module Isolated Transistor Controller NPN Signal Converter 16bit PLC Protector Optocoupler 1.Description:   It is a 16Channel PLC Amplifier Module.It adopts optocoupler isolation control, NPN signal output, safe and reliable.   2.Features:   1>.Optocoupler isolation control   2>.16... $14.39
$19.99
SKU: 14756
$14.39
$19.99

28

7Bit 15W 4ohm TTL High Level Control Voice Playback Module XY7100 32Mbit Mono MP3 Lossless Audio Digital Power Amplifier Module 7Bit 15W 4ohm TTL High Level Control Voice Playback Module XY7100 32Mbit Mono MP3 Lossless Audio Digital Power Amplifier Module 1.Description:   XY7100 is a Mono MP3 Digital Power Amplifier Module. Built-in 32Mbit memory. Built-in 15W amplifier function, so user can connect speakers directly. Support select music and adjust volume. 2.Feature: ... $6.18
$8.59
SKU: 14596
$6.18
$8.59

28

YX3307 MP3 Lossless Audio Digital Power Amplifier Module 3W TTL Low Level Control 7Bit Voice Playback Module YX3307 MP3 Lossless Audio Digital Power Amplifier Module 3W TTL Low Level Control 7Bit Voice Playback Module 1.Description:   YX3307 is a Mono MP3 Digital Power Amplifier Module. Built-in 32Mbit memory. Built-in 3W amplifier function, so user can connect speakers directly. Support select music and adjust volume.   2.Featur... $6.18
$8.59
SKU: 14595
$6.18
$8.59

28

DC 12V 24V TPA3118D2 Voice Audio Amplifier Module Stereo 45W+45W Digital Power Amplifier Board XH-M312 DC 12V 24V TPA3118D2 Voice Audio Amplifier Module Stereo 45W+45W Digital Power Amplifier Board XH-M312 Parameters:   1>.Model:XH-M312   2>.Work voltage:DC 12V-28V   3>.IC:TPA3118D2   4>.Power interface:DC 5.5*2.1mm socket   5>.Audio channel:2CH   6>.Output power:45W*2... $4.02
$5.59
SKU: 14288
$4.02
$5.59

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DC 5V Voice Audio Amplifier Module XH-A157 AUX PAM8403 Stereo 3W+3W Dual-channel Digital Power Amplifier Board DC 5V Voice Audio Amplifier Module XH-A157 AUX PAM8403 Stereo 3W+3W Dual-channel Digital Power Amplifier Board Description:     XH-A157 is a dual-channel digital power amplifier board with input voltage of DC5V and 3.5mm AUX audio input socket.On-board 50K volume adjustment relay and can be used to open and close the amplifier and a... $2.58
$3.59
SKU: 13906
$2.58
$3.59

28

XH-A234 Digital Power Amplifier Board 30W+30W DC12-24V Dual Channel Voice Audio Module 30W*2 XH-A234 Digital Power Amplifier Board 30W+30W DC12-24V Dual Channel Voice Audio Module 30W*2 Description:   This digital power amplifier board has a moderate power resolution and it is used in 20W-30W speakers.   It can be installed directly inside some small devices for easy installation and replacement. &... $2.87
$3.99
SKU: 13905
$2.87
$3.99

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DC 12-30V XH-A902 Operational Pre-Amplifier Module NE5532 Amplifier Front Panel Digital Audio Module DC 12-30V XH-A902 Operational Pre-Amplifier Module NE5532 Amplifier Front Panel Digital Audio Module Description:   The XH-A902 audio preamplifier board uses the original imported op amp chip, which is purer than other similar op amps.Smaller noise floor.It is suitable for a wide range of preamplifier amplification of all audio... $2.58
$3.59
SKU: 13904
$2.58
$3.59

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DC12V XH-A351 Digital Bluetooth Power Amplifier Board Dual Channel 20W+20W HIFI Stereo Voice Audio Module DC12V XH-A351 Digital Bluetooth Power Amplifier Board Dual Channel 20W+20W HIFI Stereo Voice Audio Module Description:   XH-A351 Bluetooth power amplifier board with high-fidelity stereo sound quality, Bluetooth 4.2 audio input, Support unobstructed onnected to 20 meters (depending on the Bluetooth configuration of the personal mobi... $5.32
$7.39
SKU: 13900
$5.32
$7.39

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XH-A233 DC 12V-24V Wireless Bluetooth Receiver Power Amplifier Board V4.2 Dual Channel Voice Audio Module 15W+15W Support TF Card XH-A233 DC 12V-24V Wireless Bluetooth Receiver Power Amplifier Board V4.2 Dual Channel Voice Audio Module 15W+15W Support TF Card Description:   XH-A233 TF card/Bluetooth power amplifier board.Its input voltage is DC12~24V.Support TF card and Bluetooth audio input methods.The default is TF card input if connect TF card and bluetooth at the same time. The b... $3.88
$5.39
SKU: 13898
$3.88
$5.39

28

XY-P40W Stereo Bluetooth Power Amplifier Board 20W 30W 40W 5V 12V 24V Dual Channel Audio Module Bluetooth Receiver Module XY-P40W Stereo Bluetooth Power Amplifier Board 20W 30W 40W 5V 12V 24V Dual Channel Audio Module Bluetooth Receiver Module 1.Description:     XY-P40W is a high-power stereo Bluetooth audio module.Dual channels audio signal output.Built-in amplifier module therefore it can connect to loudspeaker directly. It is ideal for DIY wireless Bluetooth s... $3.59
$4.99
SKU: 13865
$3.59
$4.99

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XY-P40W Dual Channel Stereo Bluetooth Power Amplifier Board 5V 12V 24V 20W 30W 40W Infrared Remote Control Receiver Module Audio module with Case XY-P40W Dual Channel Stereo Bluetooth Power Amplifier Board 5V 12V 24V 20W 30W 40W Infrared Remote Control Receiver Module Audio module with Case 1.Description:     XY-P40W is a high-power stereo Bluetooth audio module.Dual channels audio signal output.Built-in amplifier module therefore it can connect to loudspeaker directly.It is ideal for DIY wireless Bluetooth sp... $6.23
$8.65
SKU: 13862
$6.23
$8.65

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5V 12V 24V 150W ZK-MG High-Power PWM DC Motor Speed Controller Signal Generator Driver Module Speed Regulator 1KHz-99KHz 5V 12V 24V 150W ZK-MG High-Power PWM DC Motor Speed Controller Signal Generator Driver Module Speed Regulator 1KHz-99KHz 1.Description: ZK-MG is a High-power PWM DC motor governor.It can adjusts the motor speed by adjusting the duty cycle of the output signal.It can also adjust the output frequency to match the frequency of the output signal to the motor... $4.02
$5.59
SKU: 13861
$4.02
$5.59

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DC 5V Sound Voice Recording Playback Module 3W 4ohm-8ohm 4-Minutes Replace ISD1820 DC 5V Sound Voice Recording Playback Module 3W 4ohm-8ohm 4-Minutes Replace ISD1820 Parameter:   1>.Model: YS-SR1 recording module   2>.Work voltage: DC 3.6V-5.5V   3>.Work current: >0.3A   4>.Recording time: 4 minutes   5>.Sampling rate: 32KHz 48bit/s &... $5.03
$6.99
SKU: 13835
$5.03
$6.99

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