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Under $20 Normally open

Shop the best prices on 47 great value under $20 normally open products. Shopping for under $20 normally open is easy with Fruugo, with SALE discounts, offers and savings on many brands. Buy specialty electrical switches & relays, plumbing valves and security system sensors online safely with Fruugo, with secure payment and fast shipping to Australia.

Specialty Electrical Switches & RelaysPlumbing ValvesSecurity System Sensors
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1 - 32 of 47
Wired Door Sensor Magnetic Switch Home Anti-theft Alarm Dustproof Waterproof
$21.95 Save $15.00 RRP: $36.95
2PCS KSD9700 5A250V 40-140 Degree Celsius Normally Closed Open Bimetal Disc Temperature Switch Thermostat Thermal Protector
$4.95 Save $1.00 RRP: $5.95
Magnetic Door Window Contact Sensor Alarm Reed Switch Security Burglar Alarm
$20.95 Save $16.00 RRP: $36.95
Magnetic Door Window Contact Sensor Alarm Reed Switch Security Burglar Alarm
$14.95
Magnetic Door Window Contact Sensor No/NC Switch Easy to Install for Home Security
$19.95 Save $39.05 RRP: $59.00
Magnetic Door Window Contact Sensor No/nc Magnetic Switch Easy To Install
$21.95
Magnetic Door Window Contact Sensor, Easy Installation, NO/NC Magnetic Switch
$14.95 Save $69.05 RRP: $84.00
Magnetic Door Window Contact Sensor Alarm Reed Switch Security Burglar Alarm
$20.95 Save $16.00 RRP: $36.95
Solenoid Valve 12V Single Coil Pilot-Operated Electric Connection Type
$20.95
Magnetic Door Window Contact Sensor Alarm Reed Switch Security Burglar Alarm s202412245722
$11.95 Save $47.05 RRP: $59.00
Magnetic Door Window Contact Sensor No/nc Magnetic Switch Easy To Install
$14.95 Save $36.00 RRP: $50.95
Magnetic Door Window Contact Sensor No/nc Magnetic Switch Easy To Install
$16.95 Save $32.00 RRP: $48.95
Magnetic Door Window Contact Sensor Switch, Easy Install NC/NO
$15.95 Save $43.05 RRP: $59.00
Magnetic Door Window Contact Sensor, NC/NO Switch
$15.95 Save $38.05 RRP: $54.00
Magnetic Door Window Contact Sensor Alarm Reed Switch Security Burglar Alarm
$16.95 Save $37.05 RRP: $54.00
Magnetic Door Window Contact Sensor No/nc Magnetic Switch Easy To Install
$16.95 Save $52.05 RRP: $69.00
Magnetic Door Window Contact Sensor No/nc Magnetic Switch Easy To Install
$12.95 Save $46.05 RRP: $59.00
Magnetic Door Window Contact Sensor Easy to Install
$13.95 Save $38.00 RRP: $51.95
Magnetic Door Window Contact Sensor No/nc Magnetic Switch Easy To Install
$13.95 Save $55.05 RRP: $69.00
Magnetic Door Window Contact Sensor No/nc Magnetic Switch Easy To Install
$15.95 Save $43.05 RRP: $59.00
Magnetic Door Window Contact Sensor Alarm Reed Switch Security Burglar Alarm [JKW]
$19.95 Save $10.00 RRP: $29.95
Home Security Magnetic Sensor Door Window Anti-theft Alarm Surface Mount
$20.95
Home Security Magnetic Sensor Door Window Anti-theft Alarm Surface Mount
$6.95 Save $27.00 RRP: $33.95
Magnetic Door Window Contact Sensor Alarm Reed Switch Security Burglar Alarm
$16.95 Save $77.05 RRP: $94.00
Magnetic Door Window Contact Sensor Alarm Reed Switch Security Burglar Alarm
$20.95 Save $20.00 RRP: $40.95
Magnetic Door Window Contact Sensor No/nc Magnetic Switch Easy To Install
$13.95 Save $37.00 RRP: $50.95
Magnetic Door Window Contact Sensor Alarm Reed Switch Security Burglar Alarm
$16.95 Save $37.05 RRP: $54.00
Magnetic Door Window Contact Sensor Alarm Reed Switch Security Burglar Alarm S202412304840
$16.95 Save $42.05 RRP: $59.00
Magnetic Door Window Contact Sensor for Easy Installation
$19.95 Save $39.05 RRP: $59.00
Magnetic Door Window Contact Sensor No/nc Magnetic Switch Easy To Install
$14.95 Save $54.05 RRP: $69.00
Magnetic Door Window Contact Sensor No/nc Magnetic Switch Easy To Install
$14.95 Save $54.05 RRP: $69.00
Magnetic Door Window Contact Sensor Alarm Reed Switch Security Burglar Alarm
$15.95 Save $58.05 RRP: $74.00