Best 4 Output Relay

Velleman K2639 Liquid Level Controller

power supply: 12-14V AC or 16-18V DC / 100mA.
dimensions: controller PCB: 4.1 x 2.4" sensor PCB: 4.1 x 1.
you can substitute your own sensor probes.
THIS IS AN ELECTRONIC KIT AND REQUIRES ASSEMBLY..

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MUSYSIC MU-D9600 Professional 4-Channels 2x9600 Watts D-Class 1U Power Amplifier

4-Channels Professional D-Class Power Amplifier 2x9600 Watts Peak Output.
Stereo Output Power: "4x4800W PEAK, 4x2400W Program, 4x1200W RMS @ 2Ω" "4x2400W PEAK, 4x1200W Program, 4x600W RMS @ 4Ω" "4x1200W PEAK, 4x600W Program, 4x300W RMS @ 8Ω" / Bridge Output Power: "2x4800W PEAK, 2x2400W Program, 2x1200W RMS @ 4Ω" "2x2400W PEAK, 2x1200W Program, 2x600W RMS @ 8Ω".
Frequency Response: 20Hz-20KHz,+0,-1dB at watts / THD+N(20Hz-20KHz) ＜0.23％20Hz-20KHz / Siew Rate ＞30V/us / Damping Factor ＞150 / Output Circuitry Class AB / Signai to Noise Ratio ≥96dB / Cross Talk ＞80dB / lnput Sensitivity(8Ω) 1V / input lmpedance 20 k Ω baiance / 10 k Ω unbalanced unbalance balancing 20 k / 20 k /.
Three cooling fans / Connectors Input: XLR input, 1/4" input: Speakon connector Output: Speakon, locking type socket, Power Requirements: 115v-230v 50/60 hz.
Controls Panel: the power switch, channel 1 and channel 2 channel gain control.
After the board: working mode, pressure limit./ lndicators Panel: the power switch, channel 1 and channel 2 channel gain control.
After the board: working mode, pressure limit./ Amplifier Protection With short circuit, overload, overheat, cut peak pressure limit, dc, soft start, relay zero current switch, super audio and radio fre....

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WinnerEco 5pcs 1 Channel DC 5V Relay Switch Module for Raspberry Pi ARM AVR

1-channel relay interface board which can be controlled directly by a wide range of microcontrollers. Controllers includes AVR, PIC, ARM, PLC, etc..
Relay output maximum contact is AC110V ~ AC250V 10A and DC30V 10A..
Standard interface can be directly connected with microcontrollers..
Red working status indicator for power on indication.Green working status indicator for relay the switch..
It can control various appliances and other equipments with large current.Widely used for all MCU control, industrial sector, PLC control, smart home control..

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Ximimark 1Pcs ESP8266 Network Relay WIFI Module 220V 10A DC 7-30V 4 Layers Board TVS Input Automatic Protection

The ESP8266 Wifi module is designed with a 4-layer board. It is safer to use the relay PCB pin anti-climbing design. The access control server passes the TCP CLIENT mode. Controlled by the HTTP protocol..
Input overvoltage protection, TVS input, automatic protection will run when the voltage exceeds 33V. Single optocoupler isolated input, TVS input protection..
Wide voltage input, input voltage: DC 7V - DC 30V, input overcurrent protection..
220V 10A relay, one normally open, one normally closed. An output status indicator, an input status indicator..
Board dimensions: 65 × 40 × 20mm (1mm = 0.0393inch).

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bayite DC 12V Fahrenheit Digital Temperature Controller 10A 1 Relay with Sensor

Simplified Design---Easy to set. Support °F display.
One Relay Output---Switch between heating mode and refrigeration mode according to the device you plug into the controller. Maximum output load: 1100W(110V).
Safe Protection---High and low temperature alarms are available when the temperature overshoots your desired temperature. Compressor delay protection time setting and Temperature calibration.
Warranty---1 year warranty for replacement or full refund without return. Comes with a 3m(9.8ft) waterproof probe sensor. Measure range is -4 ~ 230°F.

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K-Head Repeater Box RPT-2K Relay Walkie Talkie K-Head Two Way Radio Repeater Box for Baofeng UV-5R DM-5R GT-3TP Radio

【Plug and Play】No power supply needed. There is no need to change any part of the original walkie-talkie, just take two handheld walkie-talkies.....
【Parameters】Portable relay box is made of ABS. Plug: K head, color: black, whether it is two-way: yes, line length: both sides are 90cm/35.4in....
【About Two-way Relay Box Plug】 Two-way relay box plug does not divide input/output, two-way relay box forwarding mode: A machine receives B....
【Two-way Forwarding】When the A machine receiver, the B machine transmits. When the B machine receives, the A machine launches. The two-way....
【Audio Trigger Mode】This relay box is an audio trigger mode. When using it, the volume of the intercom as a receiving signal should be adjusted to....

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ONLINE LED STORE RTT7121A 12V 40A 4-Pin Relay [Direct Replacement] [Mechanical Relay] [Single Pole Single Throw] - Replacement for Toyota 90987-02006 OEM Relay

DIRECT RELAY REPLACEMENT- Our 4-pin relay is a direct factory replacement for the Toyota 90987-02006 OEM relay only priced more attractively..
EASY & AFFORDABLE MAINTENANCE- Keep your Toyota or Lexus vehicle running at its best with this plug & play replacement relay.
OEM-STYLE QUALITY- Manufactured to the same quality standards as the Toyota 90987-02006 relay, the OLS RTT7121A 12V 40A 4-Pin Relay delivers OEM-style quality..
COMPATIBLE WITH POPULAR TOYOTA & LEXUS CARS- Fits popular Toyota models: 1986-1991 Camry, 1995-2007 Corolla Sedan, 1990-1999 Previa, 1994-1997 RAV4, 1984-1997 Tercel, and much more..
COMPATIBLE WITH OLS 12-SLOT RELAY BOXES- This 12V 40A 4-pin relay is also compatible with our 12-Slot Relay Box (PSZACCEPS142R)..

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Starter Solenoid Relay + Starter Motor for 4-Stroke GY6 Engine 50cc 150cc 200cc 250cc ATV Dirt Bikes Scooters Go Kart Compatible with Taotao SUNL Coolster Baja Roketa 4 Wheelers Moped by BOOTOP

Starter Solenoid Relay + Starter Motor for GY6 4-Stroke ATV Dirt Bikes Pit Bike Scooters Go Kart Moped Quad 4 Wheelers Buggys 50cc 150cc 200cc 250cc Engine. Compatible with Tao tao SUNL Coolster Baja Roketa Icebear Jonway GY6 engine parts replacement..
Starter Solenoid Relay for 4-Stroke GY6 Engine 50cc 150cc 200cc 250cc ATV Dirt Bikes Scooters Go Kart Dne Buggys Quad 4 Wheelers Pit Bike Moped Roketa SSR Taotao Sunl Coolster..
Motor Starter for GY6 125cc 150cc Scooter ATV Moped Go Karts Quad 4 Wheelers Taotao SUNL Baja Icebear Roketa Jonway.
GY6 Motor Starter For 152QMI 157QMJ engine motor. 12V / 9 Teeth / CW Rotation..
Starter Solenoid Relay,Starter Relay Solenoid also works with Honda Clones 50cc, 70cc, 110cc, 125cc, 250cc etc. GY6 Starter Solenoid Relay Replace oem part number: 35850-286-007,35850-286-027,35850-286-017,35850-375-000. High cranking power,reduce startup switch electric current.
High quality material,efficient and durable..
4 Stroke Engine Parts GY6 150cc starter motor may also know as 150cc motor,150cc scooter motor,4 wheeler motor,starter motor motorcycle,gy6 starter motor,150cc gy6 starter motor,50cc starter motor,150cc starter motor,125cc starter motor,moped starter motor,scooter starter motor,go kart starter motor,ATV starter motor. ....

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UHPPOTE Access Control System with Electromagnetic Lock 600lb Holding Force for Outswinging Door

✅280kg holding force electric magnetic lock offers reliable performance..
✅Can be used as a stand alone keypad. Doesn't need to connect on the computer, can works alone.
✅With lock relay output, secure / normal Mode, NO / NC output.
✅The unit support up to 2000 users in either a Card, 4 digit PIN, or a Card + PIN option.
✅This door entry systems is qualified as an ideal equipment for appartment, offices, factories, hotel, family house, school, etc..

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YWBL-WH Relay Module One Way 30A Optocoupler Isolation Relay Module High Power Relay High/Low Level Trigger YYG-2(5VDC)

ANTI-INTERFERENCE---Made of the high quality miniature optocoupler, the relay module is of anti-interference ability, stable performance.
STABLE AND RELIABLE---Adopting 9.5mm black barrier terminal and standard 30A terminal, the relay module is stable and reliable.
HIGH/LOW LEVEL TRIGGER---The high/low level trigger of the relay module can be switched.
DC5V/DC12V/DC24V---There are 3 styles for you: DC5V, DC12V, DC24V, you can choose one according to your preference.
MAIN FEATURE---Product Name: Optocoupler Isolation Relay Module.
Output Capability: AC 250V/30A, less than DC 30V/30A.

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