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Littelfuse is a global leader in magnetic sensing solutions with a portfolio covering reed switches, reed sensors, hall effect sensors, reed relays, and magnetic actuators. Littelfuse also offers a broad range of thermistors, resistance temperature detectors (RTDs), digital temperature indicators, and probes and assemblies for temperature sensing applications.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (HKD) Filter the results in the table by unit price based on your quantity.	Qty.
Proximity Sensors PROX SEN VANE SPST-NO W/WIRE 59085-010 Littelfuse 1: HK$78.09 5,964In Stock	Mfr. Part No. 59085-010 Mouser Part No 934-59085-010	Littelfuse	Proximity Sensors PROX SEN VANE SPST-NO W/WIRE Learn More about Littelfuse sensors	Datasheet	5,964In Stock	HK$78.09 HK$70.77 HK$67.40 HK$65.76 View HK$62.55 HK$61.57 Quote	Min.: 1 Mult.: 1
Hall Effect / Magnetic Sensors - Industrial GEARTOOTH SPEED SEN SS 3WIRE 55075-00-02-A Littelfuse 1: HK$253.18 1,214In Stock 183Expected 30/11/2026	Mfr. Part No. 55075-00-02-A Mouser Part No 934-55075-00-02-A	Littelfuse	Hall Effect / Magnetic Sensors - Industrial GEARTOOTH SPEED SEN SS 3WIRE Learn More about Littelfuse sensors	Datasheet	1,214In Stock 183Expected 30/11/2026	HK$253.18 HK$248.74 HK$242.33 HK$240.60 View HK$236.00 Quote	Min.: 1 Mult.: 1
Hall Effect / Magnetic Sensors - Industrial 3 Wire SW 500mm TIN 55100-3H-04-A Littelfuse 1: HK$69.21 4,425In Stock	Mfr. Part No. 55100-3H-04-A Mouser Part No 934-55100-3H-04-A	Littelfuse	Hall Effect / Magnetic Sensors - Industrial 3 Wire SW 500mm TIN Learn More about Littelfuse Hamlin 55100 Sensor	Datasheet	4,425In Stock	HK$69.21 HK$62.64 HK$57.21 HK$55.24 View HK$53.43 HK$49.65 HK$48.25	Min.: 1 Mult.: 1
Magnetic/Reed Switches 59165-1-U-00-A SENS 59165-1-U-00-A Littelfuse 1: HK$16.69 12,986In Stock	Mfr. Part No. 59165-1-U-00-A Mouser Part No 934-59165-1-U-00-A	Littelfuse	Magnetic/Reed Switches 59165-1-U-00-A SENS Learn More about Littelfuse hamlin mdsr reed sensors	Datasheet	12,986In Stock	HK$16.69 HK$11.01 HK$9.70 HK$8.96 View HK$8.63 HK$8.55 HK$8.30	Min.: 1 Mult.: 1
Reed Relays REED RELAY HE722A1210 Littelfuse 1: HK$31.07 5,744In Stock Factory Special Order	Mfr. Part No. HE722A1210 Mouser Part No 934-HE722A1210 Factory Special Order	Littelfuse	Reed Relays REED RELAY Learn More about Littelfuse he700	Datasheet	5,744In Stock	HK$31.07 HK$27.70 HK$26.47 HK$25.56 View HK$24.66 HK$23.59 HK$22.69 HK$21.87	Min.: 1 Mult.: 1
Magnetic/Reed Switches NO 10-15AT 7.5mm Overmolded Sensor 59166-1-S-00-C Littelfuse 1: HK$13.65 2,125In Stock 1,000Expected 23/12/2026	Mfr. Part No. 59166-1-S-00-C Mouser Part No 934-59166-1-S-00-C	Littelfuse	Magnetic/Reed Switches NO 10-15AT 7.5mm Overmolded Sensor Learn More about Littelfuse 59166 reed switches	Datasheet	2,125In Stock 1,000Expected 23/12/2026	HK$13.65 HK$11.92 HK$10.85 HK$9.95 View HK$8.71 HK$8.17 HK$7.74 HK$7.42	Min.: 1 Mult.: 1
Magnetic/Reed Switches 59050-3-T-00-0 SENS 59050-3-T-00-0 Littelfuse 1: HK$40.94 618In Stock	Mfr. Part No. 59050-3-T-00-0 Mouser Part No 576-59050-3-T-00-0	Littelfuse	Magnetic/Reed Switches 59050-3-T-00-0 SENS Learn More about Littelfuse 59050 reed switches	Datasheet	618In Stock	HK$40.94 HK$34.20 HK$31.65 HK$26.72 View HK$25.32 HK$24.58 HK$23.67 HK$22.36	Min.: 1 Mult.: 1
Sensor Fixings & Accessories HARDWARE ACTUATOR MAGNET 57105-000 Littelfuse 1: HK$19.32 2,831In Stock	Mfr. Part No. 57105-000 Mouser Part No 934-57105-000	Littelfuse	Sensor Fixings & Accessories HARDWARE ACTUATOR MAGNET Learn More about Littelfuse magnetic actuators	Datasheet	2,831In Stock	HK$19.32 HK$17.18 HK$15.45 HK$14.88 View HK$14.22 HK$13.40 HK$13.07 HK$12.82 HK$12.74	Min.: 1 Mult.: 1
Proximity Sensors 59145-1-S-02-A SENS 59145-1-S-02-A Littelfuse 1: HK$31.15 2,905In Stock	Mfr. Part No. 59145-1-S-02-A Mouser Part No 934-59145-1-S-02-A	Littelfuse	Proximity Sensors 59145-1-S-02-A SENS Learn More about Littelfuse reed sensors	Datasheet	2,905In Stock	HK$31.15 HK$27.95 HK$25.32 HK$24.33 View HK$23.34 HK$21.04 HK$20.55	Min.: 1 Mult.: 1
Magnetic/Reed Switches 59165-1-T-00-D SENS 59165-1-T-00-D Littelfuse 1: HK$12.49 8,015In Stock	Mfr. Part No. 59165-1-T-00-D Mouser Part No 934-59165-1-T-00-D	Littelfuse	Magnetic/Reed Switches 59165-1-T-00-D SENS Learn More about Littelfuse hamlin mdsr reed sensors	Datasheet	8,015In Stock	Cut Tape HK$12.49 HK$10.77 HK$10.03 HK$8.96 Reel HK$6.09 View HK$8.30 HK$7.78 HK$6.44 HK$6.07	Min.: 1 Mult.: 1 : 1,500
Magnetic/Reed Switches HA15-2 17-23 HA15-2-17-23 Littelfuse 1: HK$19.15 1,036In Stock	Mfr. Part No. HA15-2-17-23 Mouser Part No 934-HA15-217-23	Littelfuse	Magnetic/Reed Switches HA15-2 17-23 Learn More about Littelfuse reed switches	Datasheet	1,036In Stock	HK$19.15 HK$16.19 HK$14.96 HK$13.40 View HK$12.41 HK$11.75 HK$10.77 HK$10.28 HK$9.95	Min.: 1 Mult.: 1
Magnetic/Reed Switches MDSM-10R 5431 10-25 MDSM-10R-10-25 Littelfuse 1: HK$13.07 2,165In Stock	Mfr. Part No. MDSM-10R-10-25 Mouser Part No 934-MDSM-10R10-25	Littelfuse	Magnetic/Reed Switches MDSM-10R 5431 10-25 Learn More about Littelfuse reed switches	Datasheet	2,165In Stock	Cut Tape HK$13.07 HK$11.51 HK$10.69 HK$9.70 Reel HK$6.93 View HK$9.29 HK$8.80 HK$8.38 HK$6.63	Min.: 1 Mult.: 1 : 3,000
Proximity Sensors NC 15-20AT 1m TIN 59025 Firecracker 59025-4-S-05-A Littelfuse 1: HK$59.27 625In Stock	Mfr. Part No. 59025-4-S-05-A Mouser Part No 934-59025-4-S-05-A	Littelfuse	Proximity Sensors NC 15-20AT 1m TIN 59025 Firecracker Learn More about Littelfuse hamlin 59025 firecracker sensors	Datasheet	625In Stock	HK$59.27 HK$53.51 HK$48.83 HK$47.10 View HK$47.02 HK$45.79 HK$41.02	Min.: 1 Mult.: 1
Proximity Sensors PROX SEN THREAD BARREL SPST-NO 59065-1-S-02-A Littelfuse 1: HK$48.91 1,298In Stock	Mfr. Part No. 59065-1-S-02-A Mouser Part No 934-59065-1-S-02-A	Littelfuse	Proximity Sensors PROX SEN THREAD BARREL SPST-NO Learn More about Littelfuse reed sensors	Datasheet	1,298In Stock	HK$48.91 HK$37.73 HK$30.91 HK$29.76 View HK$28.36 HK$27.04	Min.: 1 Mult.: 1
Proximity Sensors 59085 030 PROX SENSOR 59085-030 Littelfuse 1: HK$79.65 261In Stock	Mfr. Part No. 59085-030 Mouser Part No 934-59085-030	Littelfuse	Proximity Sensors 59085 030 PROX SENSOR Learn More about Littelfuse sensors	Datasheet	261In Stock	HK$79.65 HK$61.24 HK$50.31 HK$48.58 HK$46.44	Min.: 1 Mult.: 1
Proximity Sensors PROX SENS CHANGE OVER UNTINNED 59025-3-T-02-F Littelfuse 1: HK$44.80 495In Stock	Mfr. Part No. 59025-3-T-02-F Mouser Part No 934-59025-3-T-02-F	Littelfuse	Proximity Sensors PROX SENS CHANGE OVER UNTINNED Learn More about Littelfuse hamlin 59025 firecracker sensors	Datasheet	495In Stock	HK$44.80 HK$40.36 HK$36.66 HK$35.35 View HK$34.03 HK$31.48 HK$30.58	Min.: 1 Mult.: 1
Sensor Fixings & Accessories HARDWARE ACTUATOR MAGNET H-31-MAGNET Littelfuse 1: HK$12.00 7,048In Stock	Mfr. Part No. H-31-MAGNET Mouser Part No 934-H-31	Littelfuse	Sensor Fixings & Accessories HARDWARE ACTUATOR MAGNET Learn More about Littelfuse magnetic actuators	Datasheet	7,048In Stock	HK$12.00 HK$10.60 HK$9.54 HK$9.12 View HK$8.55 HK$7.93 HK$7.65 HK$7.08	Min.: 1 Mult.: 1
Magnetic/Reed Switches 175V 5WATTS MDRR-DT-30-35-F Littelfuse 1: HK$40.85 1,834In Stock	Mfr. Part No. MDRR-DT-30-35-F Mouser Part No 934-MDRR-DT-30-35-F	Littelfuse	Magnetic/Reed Switches 175V 5WATTS Learn More about Littelfuse Hamlin MDRR DT	Datasheet	1,834In Stock	HK$40.85 HK$36.25 HK$33.95 HK$30.25 View HK$28.19 HK$26.80 HK$25.48 HK$24.08	Min.: 1 Mult.: 1
Magnetic/Reed Switches MDSM-10R 5431 15-20 MDSM-10R-15-20 Littelfuse 1: HK$11.84 2,828In Stock	Mfr. Part No. MDSM-10R-15-20 Mouser Part No 934-MDSM-10R15-20	Littelfuse	Magnetic/Reed Switches MDSM-10R 5431 15-20 Learn More about Littelfuse reed switches	Datasheet	2,828In Stock	Cut Tape HK$11.84 HK$10.19 HK$9.45 HK$8.71 View Reel HK$7.50 HK$8.14 HK$7.85 HK$7.77 HK$7.50	Min.: 1 Mult.: 1 : 3,000
Proximity Sensors PROX SENSOR MINI FLANGE MOUNT 59140-020 Littelfuse 1: HK$35.59 1,389In Stock	Mfr. Part No. 59140-020 Mouser Part No 934-59140-020	Littelfuse	Proximity Sensors PROX SENSOR MINI FLANGE MOUNT Learn More about Littelfuse sensors	Datasheet	1,389In Stock	HK$35.59 HK$35.51 HK$27.54 HK$22.44 View HK$21.62 HK$19.40	Min.: 1 Mult.: 1
Proximity Sensors 59140-3-S-02-F SENS 59140-3-S-02-F Littelfuse 1: HK$45.46 435In Stock	Mfr. Part No. 59140-3-S-02-F Mouser Part No 934-59140-3-S-02-F	Littelfuse	Proximity Sensors 59140-3-S-02-F SENS Learn More about Littelfuse reed sensors	Datasheet	435In Stock	HK$45.46 HK$40.94 HK$40.03 HK$37.73 View HK$31.98 HK$30.99	Min.: 1 Mult.: 1
Proximity Sensors 59150-3-T-02-F SENS 59150-3-T-02-F Littelfuse 1: HK$48.50 480In Stock	Mfr. Part No. 59150-3-T-02-F Mouser Part No 934-59150-3-T-02-F	Littelfuse	Proximity Sensors 59150-3-T-02-F SENS Learn More about Littelfuse reed sensors	Datasheet	480In Stock	HK$48.50 HK$43.65 HK$39.78 HK$38.31 View HK$38.22 HK$34.20 HK$33.21	Min.: 1 Mult.: 1
Magnetic/Reed Switches 59165-1-T-00-A SENS 59165-1-T-00-A Littelfuse 1: HK$16.69 2,618In Stock	Mfr. Part No. 59165-1-T-00-A Mouser Part No 934-59165-1-T-00-A	Littelfuse	Magnetic/Reed Switches 59165-1-T-00-A SENS Learn More about Littelfuse hamlin mdsr reed sensors	Datasheet	2,618In Stock	HK$16.69 HK$14.06 HK$13.07 HK$11.67 View HK$10.77 HK$10.60 HK$9.37 HK$9.21 HK$8.55	Min.: 1 Mult.: 1
Magnetic/Reed Switches MDRR-DT 1156 15-20 U MDRR-DT-15-20-U Littelfuse 1: HK$43.24 598In Stock	Mfr. Part No. MDRR-DT-15-20-U Mouser Part No 934-MDRR-DT15-20U	Littelfuse	Magnetic/Reed Switches MDRR-DT 1156 15-20 U Learn More about Littelfuse reed switches	Datasheet	598In Stock	HK$43.24 HK$36.00 HK$33.37 HK$29.76 View HK$27.70 HK$26.39 HK$25.07 HK$23.67	Min.: 1 Mult.: 1
Hall Effect / Magnetic Sensors - Industrial 55100 3H02D HALL SENSOR 55100-3H-02-D Littelfuse 1: HK$87.30 549In Stock	Mfr. Part No. 55100-3H-02-D Mouser Part No 934-55100-3H-02-D	Littelfuse	Hall Effect / Magnetic Sensors - Industrial 55100 3H02D HALL SENSOR Learn More about Littelfuse Hamlin 55100 Sensor	Datasheet	549In Stock	HK$87.30 HK$79.24 HK$72.58 HK$70.12 View HK$67.82 HK$63.21 HK$61.90	Min.: 1 Mult.: 1

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