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Hansford SensorsHS-421S series With additional AC output

HS-421S 4–20 mA vibration sensor (velocity) with additional AC output, side exit, PUR cable

Outputs: 4–20 mA (vibration velocity) and AC (acceleration), PUR cable.

Output AC IEPE + 4–20 mA
Exit Side exit
IP IP68
Cable PUR cable

Ordering options

Measuring range — velocity

Mounting thread

You do not have to choose every option — we will agree the rest in the quotation.

Quantity

Technical data is taken from the manufacturer's documentation. Before ordering, please confirm the parameters against the current datasheet or with our engineer.

HS Sensors · HS-421S · as of 07/10/2026

Key features

For PLC / DCS systems and data collectors
Waterproof
Oil resistance
Piezoelectric element in compression design

Technical specifications

Parameters as specified by the manufacturer.

Measurement
Measured quantity	Vibration acceleration, Vibration velocity
Number of measuring axes	1 axis
Measuring range — velocity	10 / 20 / 25 / 50 / 100 mm/s (standard: 10)

Output signal
Output type	AC (IEPE) — acceleration, 4–20 mA

Connection and mounting
Cable / connector exit	Side exit
Integral cable	PUR
Mounting thread	1/4"-28 UNF, male (standard), M6 × 1 mm, male, M8 × 1.25 mm, male

Operating conditions and protection
IP rating	IP68
Operating temperature	−25 … +90 °C
Electromagnetic compatibility (EMC)	EN 61326-1:2013

Construction
Sensing element	PZT — shear
Case material	Stainless steel
Weight	185 g (nominal, body only)
Features	Waterproof, Oil-resistant, For data collectors, For PLC / DCS systems

Identification
Model	HS-421S
HS Sensors part no.	HS-421S-SIDE-PUR
Manufacturer's product name	HS-421S – Side Exit – Integral PUR Cable Dual Output Accelerometer

Documentation

Other HS-421S versions

All HS-421S variants

The same model with a different cable exit, connector or cable type.

Where it is used

Typical applications

Fans
Electric motors
Pumps
Compressors
Centrifuges
Conveyors
Air handling units
Gearboxes
Rolls
Dryers
Presses
Cooling systems
HVAC systems
Spindles
Machine tools
Process equipment

HS-421S 4–20 mA vibration sensor (velocity) with additional AC output, side exit, PUR cable

Key features

Technical specifications

Documentation

Other HS-421S versions

Where it is used

Typical applications

Categories

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