.
Reed
Switch
Detects when a magnet moves closer
Circuit Diagram

Component Table
Item
Values
SW1
Reed
Switch
Sub- miniature
S.P.S.T.
£0.50 + VAT
Magnet 12.7mm
£0.22 + VAT
R4
Fixed
Resistor
10K Ohm
£0.01 + VAT

Guide prices only
(+ VAT)
.
Reed
Switch
Detects when a magnet moves away
Circuit Diagram
Component Table
Item
Values
SW1
Reed
Switch
Sub- miniature
S.P.S.T.
£0.50 + VAT
Magnet 12.7mm
£0.22 + VAT
R4
Fixed
Resistor
10K Ohm
£0.01 + VAT

Guide prices only
(+ VAT)
.
S.P.S.T.
Switch
Triggers when its contacts "close" or come together
Circuit Diagram
Component Table
Item
Values
SW1
S.P.S.T.
Switch
various
R4
Fixed
Resistor
10K Ohm
£0.01 + VAT

Guide prices only
(+ VAT)
.
S.P.S.T.
Switch
Triggers when its contacts "open" or come apart
Circuit Diagram
Component Table
Item
Values
SW1
S.P.S.T.
Switch
various
R4
Fixed
Resistor
10K Ohm
£0.01 + VAT

Guide prices only
(+ VAT)
.
Membrane
Switch
Detects when pressure is applied
Circuit Diagram
Component Table
Item
Values
Membrane
Switch
Copper Track

£0.03 + VAT
per 20 cm.
R4
Fixed
Resistor
10K Ohm
£0.01 + VAT

Guide prices only
(+ VAT)
.
Membrane
Switch
Detects when pressure is released
Circuit Diagram
Component Table
Item
Values
Membrane
Switch
Copper Track

£0.03 + VAT
per 20 cm.
R4
Fixed
Resistor
10K Ohm
£0.01 + VAT

Guide prices only
(+ VAT)
.
Tilt
Switch
Triggers when it is tilted at an angle
Circuit Diagram
Component Table
Item
Values
Tilt
Switch
Non- mercury
(10 degrees from horizontal)
£0.70 + VAT
R4
Fixed
Resistor
10K Ohm
£0.01 + VAT

Guide prices only
(+ VAT)