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Relay Module 2-Ch 12V with Optocouplers.

Model: M114
Price: £2.64

Double relay module. Inputs Gnd, Vcc (12Vdc), channel 1 signal, channel 2 signal. Channel activation HIGH/LOW selectable by jumper links - 5V logic ... more info

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Relay Module 2-Ch 5V with Optocouplers.

Model: M064
Price: £2.83

Double relay module. Inputs Gnd, Vcc (5Vdc), channel 1 signal (active low), channel 2 signal (active low). Channel signals are optically isolated ... more info

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Relay Module 4-Ch 12V with Optocouplers.

Model: M115
Price: £3.63

4-Channel relay module. Inputs Gnd, Vcc (12Vdc), channel select signal 1-4. Channel activation HIGH/LOW selectable by jumper links - 5V logic ... more info

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Relay Module 4-Ch 5V with Optocouplers.

Model: M081
Price: £3.22

4-Channel relay module. Inputs Gnd, Vcc (5Vdc), channel select signal 1-4 (active low). Channel signals are optically isolated from the relay coils. ... more info

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Relay On Delay Timer Module

Model: M110
Price: £1.00

Relay activation delay from power-up. When 12Vdc is applied to the module, a timer is started. At time-out, the relay is activated. Time adjustable ... more info

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Retaining clip

Model: HW134
Price: £0.15

Retains the TO220 device on SW series heatsinks.

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RF Receiver 433MHz FM

Model: M031
Price: £7.21

HM-R433 Operates on the 433MHz FM band. Frequency Modulation receiver for greater noise immunity and range. Complements transmitter M032. ... more info

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RF Transmitter 433MHz AM

Model: M003
Price: £4.00

433.92MHz AM. Manufactured by RF Solutions. Transmitter: AM-RT4. Applications include remote control, data transfer, etc.

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RF Transmitter 433MHz FM

Model: M032
Price: £7.38

HM-T433 Operates on the 433MHz FM band. Frequency Modulation transmitter for greater noise immunity and range. Complements receiver M031. ... more info