Skip to content
HS Sensors

Hansford SensorsHS-421S seriesWith additional AC output

HS-421S 4–20 mA vibration sensor (velocity) with additional AC output, side exit, M12 connector

Outputs: 4–20 mA (vibration velocity) and AC (acceleration), M12 connector.

  • Output AC IEPE + 4–20 mA
  • Exit Side exit
  • IP IP67
  • Connector M12
Datasheet (PDF)
Ordering options

Measuring range — velocity

Mounting thread

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

Talk to an engineer

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
  • Side exit — easier installation where space is limited
  • Piezoelectric element in compression design

Technical specifications

Parameters as specified by the manufacturer.

Measurement
Measured quantityVibration acceleration, Vibration velocity
Number of measuring axes1 axis
Measuring range — velocity12.7 / 25 / 50 / 100 mm/s (standard: 12.7)
Output signal
Output typeAC (IEPE) — acceleration, 4–20 mA
Connection and mounting
Cable / connector exitSide exit
ConnectorM12, 4-pin
Mounting thread1/4"-28 UNF, male (standard), M6 × 1 mm, male, M8 × 1.25 mm, male
Operating conditions and protection
IP ratingIP67
Operating temperature−25 … +120 °C
Electromagnetic compatibility (EMC)EN 61326-1:2013
Construction
Sensing elementPZT — compression
Case materialStainless steel
Weight185 g (nominal, body only)
FeaturesFor data collectors, For PLC / DCS systems
Identification
ModelHS-421S
HS Sensors part no.HS-421S-SIDE-M12
Manufacturer's product nameHS-421S – Side Exit – 4 Pin M12 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

Categories

Cables and accessories

Compatible cables

Related products

Similar products