2. This deceptively simple mechanism provides reliable circuit control through contact closure, demonstrating exceptional durability and stability across diverse industrial automation systems and commercial equipment applications.
AirTAC CS1B Magnetic Reed Sensor CS1B4X020 Technical Details
- Model: CS1B4X020
- Type: Non-contact magnetic reed switch
- Sensing distance: 4mm ±10% (from magnet surface)
- Output type: 2-wire normally open (NO)
- Supply voltage: DC 5-240V (AC/DC compatible)
- Max. load current: 200mA
- Response frequency: ≤1000Hz
- Contact resistance: ≤100mΩ
- Insulation resistance: ≥100MΩ (500VDC)
- Dielectric strength: 1500VAC for 1min
- Housing material: PBT + Glass fiber (UL94 V-0)
- Operating temperature: -25℃ to +70℃
- Protection class: IP67 (dust/water resistant)
- Cable length: 2m standard (4-core shielded)
- Connection: M8 4-pin quick-disconnect
- Weight: 30g ±2g (sensor body only)
- Dimensions: 18mm(W) × 18mm(D) × 40mm(H)
High-precision magnetic proximity sensor with gold-plated reed contacts for reliable switching. Features overcurrent protection and reverse polarity safeguard. The epoxy-encapsulated design ensures vibration resistance up to 50Hz/1.5mm amplitude. Compatible with all standard pneumatic cylinder magnets (including multi-pole variants).
- Cylinder piston position feedback in automation lines
- Safety door interlocks in injection molding machines
- Position verification in linear actuator systems
- End-of-stroke detection in pneumatic presses
- Level monitoring in hydraulic reservoir systems
| Property | Property Value |
|---|---|
| sku | CS1B4X020 |
Returns will be accepted for up to 15 days of Customer’s receipt or tracking number on Not used items. You, as a Customer, are obliged to inform us via email before you return the item, only in the case of:
- Received the wrong item.
- Item arrived not as expected (ie. damaged packaging).
- Item had defects.
- Over delivery time.
- The shipper does not allow the goods to be inspected before payment.
The returned product(s) must be in the original packaging, safety wrapped, undamaged and unworn. This means that the item(s) must be safely packed in a carton box for protection during transport, possibly the same carton used to ship to you as a customer.



