Sensors

Cadmium Sulphide (CdS) photocell
(or  Light Dependent Resistor, LDR)

Resistance changes inversely with the intensity of light.
Ref. no GL5528
(RM 1.50)

Magnetic  Switch for security alarm system
Switch normally open. Closes when placed near magnet
Sold in pair  (magnet + reed switch)
(RM 6.50)







 Micro Vibration Sensor 
Ref. no SW-200D 
(RM 2.50)

Analog Temperature Sensor IC
( 0 ~ 100^oC)
Ref. no LM-35DZ 
(RM 8.00)

Slotted Optical Switch
Performs Non-Contact Interruptive Object Sensing 
(RM 2.00)