Best Screw Reed Switches in 2026

Patented, water sealed reed/magnet switch design

UL 508 Compliant

Schedule 40 PVC1 plastic components

1.Size: 6 x 6 x 4.3mm / 5mm / 6mm / 7mm / 8mm / 9mm / 10mm / 11mm / 12mm / 13mm

2. Contact Type: Momentary Contact; Current Rating: 50mA; Voltage Rating: DC 12V; Contact Resistance: 100M Ohm

3. High Quality: Flame Retardant Plastic and Stainless Steel High Life Reed

High quality momentary push button made of flame retardant plastic and stainless steel high life reed.

Switch Size: Tactile switch includes 10 values 6x6x4.3/ 5.5/ 6.5/ 7/ 8/ 9/ 10/ 11/ 12/ 13mm

Feature: momentary contact, 4 pins, round black push button, through hole mounting, Used in the fields of electronic products, household appliances and more.

<b>100TECH Stainless Steel Fule Tank Sending Unit is Made With OKI Reed Switch(Imported from Japan). It is the Direct Replacement for Arm Type sender. The Advantage of This Fuel Level Sender Over Thick-Film Swim Arm Type Level Sender is the Reed Switch's Durability and Reliability. </b> <br> Additionally, No Moving Parts to Break. No Adjustment Needed for Tank.<br>

The Fule/Water Level Sensor with American standard output 240-33 ohms (240 ohms at empty, 33 ohms at full). If you Need Lengths Other than 4"-24", Please Contact us Directly for More Information.<br>

[Easy to Install] The Fuel Level Sending Unit Comes with Gasket,Mounting Screws,Well-Written and Illustrated instructions; The Wiring Instructions are Straight Forward and Easy to follow. <br>

Package included: 10 × Reed Switch, 10pcs Small Multi-Use Round Magnets

Length of glass: 14 mm；Diameter of plastic part: 2.5 mm

Maximum switching voltage 100VDC,Working temperature: -20 degrees to 80 degrees

[High Precision and Long Life]: The exterior is made of stainless steel, and the interior is controlled by high-quality reed switches. The sensor is corrosion-resistant, does not rust, has a long life, stable output signal, and accurate measurement. Suitable for gasoline, diesel, water, methanol, etc.

[Easy to Read]: The fuel level gauge has 8 adjustable backlight colors, IP67 waterproof, stainless steel frame, anti-fog curved glass, easy to read (Empty-1/2-Full).

[Easy Installation]: SAE 5 hole mounting pattern, NBR material gasket, good sealing performance, high oil resistance, with M5 5 screws, 10 quick wiring terminals, easy and quick installation by referring to the wiring diagram.

<b>［Great replacement fuel sender］</b>The advantage of This doughnut float design type level sender over thick-film swim arm type level Sender is <b>the reed switch's durability and reliability. </b><br> Additionally, no moving parts to break. No adjustment needed for tank. It could support fuel level gauge and water Tank Gauge for Boat/RV/Truck.<br>

<b>［AODITECK Fuel Gauge］: </b> You can purchase <b> an AODITECK fuel level gauge in conjunction with an AODITECK sending unit </b> If your boat/camper didn’t have a fuel gauge, Both Will Work Great Together. <br> <b> There are several series gauge models at option.</b> <br>

<b>［More Reliable and Quality Construction］</b>All the AODITECK Fuel Sending Units are made With series of <b>Highquality reed switches and fixed resistors.</b> SAE 5 hole mounting pattern, heavy duty SUS 316 stainless steel and rugged construction. Signal Output: 240 ohms-33 ohms.<br>

✪Package included:20 X Reed Switch

✪Length of glass: 14 mm；Diameter of glass: 2 mm

✪Maximum switching voltage 100VDC,Working temperature: -20 degrees to 80 degrees

Actuator Type : Rotary Adjustable Lever Arm with Roller

Actuator Action : Momentary

Advantage: Double reed mechanism ensuring longer mechanical life

Product Name: Magnetic Door Contact Reed Switch; Color: White; Material: ABS

Transmitting Distance: 15-25mm; Contact Type: NC/NO/COM

Contact Capacity: 0.5A(Maximum Switch Current); Rated Power: 10W

➤【Reed Switch】:Great for alarm,LED,Relay,GPS low voltage devices...etc.,Great for pick-ups with sliding rear window.Effective for Theft Deterrence.

➤【Maximum Switch Voltage】: 100V;Contact Capacity: 500(mA) (Maximum Switch Current);Rated Power: 10W(Maximum Switch Power); Contact Type: NC/NO/COM,Trigger Range: 10-20mm;This switch cannot exceed the DC12v power supply

➤【Product Name】: Magnetic Door Swith; Color: white; Material: Anti-fire ABS material.;Net Weight: 42g.

➤ Product Name: Magnetic Door Swith; Color: Black; Material: ABS;Net Weight: 50g

➤Transmitting Distance: 3-15mm;Mounting Hole Size: 7 x 2.5mm/ 0.28" x 0.1"(L*W);Size: 55 x 12 x 11mm / 2.2" x 0.47" x 0.43"(L*W*H)

➤Package Content: 2 Sets x Magnetic Door Swith; Contact Type: NC/NO/COM

Product Name: Magnetic Door Switch; Model: MC-33C

Contact Type: NC (Normally Closed)

Work as an anti-theft alarm, ideal for metal door and window

【Product Name】:Magnetic Switch,Type:B31,Color:Black,Material: Anti-fire ABS,Net Weight: 20g.

【Contact Type】: NC/NO/COM,Trigger Range:10-20mm.

【Maximum Switch Voltage】:100V;Contact Capacity: 500(mA) (Maximum Switch Current);Rated Power: 10W(Maximum Switch Power),This switch cannot exceed the DC12v power supply.

Product Name: Door Magnetic Sensor Switch

Sensing distance: 10mm-15mm

Product size: 29*15.5*9mm Wire length: 33cm

Product Information: Product name: Surface-mounted Magnetic Door Switch, Type: MC-31, Color: White, Material: Plastic

Specification: Contact Type: NC, Hole Dia.: 5.8mm, Actuation Distance: 8mm±18mm

Sizes: 64*12.*12mm and 64*20*12mm（L * W * H）

Dry reed tube compact structure, small weight, can be installed in the extremely limited space, very suitable for miniaturization equipment.

Dry reed switch components are hermetically sealed in an inert gas atmosphere, never contact with the external environment, long working life.

Dry reed tube does not use sliding components, so there will be no metal fatigue related to the degradation of all metals, to ensure virtually unlimited mechanical life.

✅Material✅The fuel sending unit is made with heavy duty 316 stainless steel. This water level sensor is a reed switch, durable and reliable, and the output signal is stable. No easy to rust.

✅Wide Application✅The fuel level sensor is suitable for ships, trucks, buses and marine. Fit for oil level gauges, water level gauges and various impurity-free liquids.

✅Easy to install&connect✅The Fuel/water sending unit is equipped with gaskets and mounting screws. The installation takes about 15 minutes in total for the fuel gauge to work again. Used different bolts but no problem.

Package included: 5 × Reed Switch, 10pcs Small Multi-Use Round Magnets

Length of glass: 14 mm；Diameter of plastic part: 2.5 mm

Maximum switching voltage 100VDC

Rugged aluminum housing

Weatherproof and sealed for outdoor use

Iridium-plated to have a high melting point and Vickers hardness, for higher power handling and long life

MATERIAL - The switch housing is made of ABS flame retardant material and the reed switch is resistant to high temperature and deformation.

NORMALLY CLOSED/NORMALLY OPENED - This switch has 3 contact types: NC/NO/COM, you can choose to connect two of the contacts according to your need.

ACTUATION DISTANCE - 10-20mm transmitting distance. The contact has fast reflection and accurate detection.

[Specification] - Current: 0.5A ; Voltage: 100V ; Power Rating: 10W; Action Distance: 40~50mm

[Dimension] - Cable Length: 48.5cm/19.1"; Total Size: 106 x 37.3 x 9.7mm, 106 x 15 x 15mm (L*W*H)

[Material] - The magnetic switch alarm is with durable zinc alloy housing for better rust resistance

PVC NO+NC Door Contact Switch

The reed switch is an electrical switch operated by an applied magnetic field.

Will make Sense Door Closer at Roughly 20mm

[Specification] - Current: 0.5 A; Voltage: 100 V; Power Rating: 10 W

[Dimension] - Cable Length: 250mm; Sensing Distance: 20-30mm; Total Size: 25mm x 23.5mm/0.98" x 0.93" (L*D)

[Normally Closed] - N.C. means Normally Closed: When the magnet together, the circuit is conductive( light on ); when the magnet separates, the circuit is not conductive ( light off ). (Connect when merging, disconnect when separating)

Product Content: 2 x MC-58 Magnetic Door Switch; Color: Silver Gray, Material: Zinc Alloy.

Size: 106mm x 16mm x 16mm/4.17" x 0.63" x 0.63" (L*W*H).

Contact Type: NC (Normally Closed), Actuation Distance: 20-30mm, Max Voltage: 100V, Max Current: 0.5A.

NO&NC output for choosing

more than 1/2 inch operation distance

Surface mounted with small dimensions

【Product name】: MC-58 NC/NO ferromagnetic door switch, material: zinc alloy.

【Normally open and normally closed】: Freely use normally open or normally closed, cable definition: red is NC, black is NO, and white is normal. Cable Length: 25cm/9.8", Overall Dimensions: 104 x 15.2 x 14.8mm / 4.09" x 0.6" x 0.58" (L*W*H).

【Parameter】: Rated voltage: 100V; Contact capacity: 500(mA) (maximum switching current), rated power: 10W (maximum switching power); Contact type: NC/NO/COM, triggering range: 30-50mm.

Suitable for high operating frequency products.

The contact resistance with a high anti-corrosion and wear resistance.

The control portion of the seal in the housing, is not affected by the external environment.

[Specification] - Type: Normally Closed (NC); Max Sensing Distance: 10mm; Cable Length: 30cm/ 11.8"; Total Size: 29x15.35mm/ 11.42" x 6.04" (L*W); Max. Current: 0.5A; Max. Voltage: 100V; Max. Power: 10W

[Installation Dimension] - Installation Hole Size: 8x4mm; Installation Hole Distance: 15mm

[Durable Material] - The magnetic switch alarm is with durable PVC housing for better rust resistance

1. Product Name: Magnetic Door Swith; Color: black; Material: ABS;Net Weight: 80g

2. Maximum Switch Voltage: 100V;Contact Capacity: 500(mA) (Maximum Switch Current);Rated Power: 10W(Maximum Switch Power)

3. Great for alarm,LED,Relay,GPS low voltage devices...etc.,Trigger Range: 10-20mm; Contact Type: NC/NO/COM