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ET-2109LSR Intrinsically Safe Tachometer

The new CHECK-LINE ET-2109 explosion proof tachometer is certified EEx ia IIC T4 - ATEX II 2 G to allow for use in a wide range of hazardous environments including petrochemical, Gas & volatile materials processing industries.
The simple 3 pushbutton operation and the large clearlyreadable display with over-head facility enables a wide, flexible field of application. This light-weight device provides an easy one handed operation and facilitates the carrying-out of measurements after which it can be stowed away in the tool box or jacket pocket.

  • ON button – Auto-Off after 1 min.
  • HOLD function for 1 min. after releasing button
  • Programming function using 3 buttons
  • Statistic functions (min, max, average)

  • 5 digit
  • large display
  • LOW-batt. display
  • pulse recognition
  • function mode

Note: The ET-2109LSR is not certified for use in Mines.


  • Explosion-Proof Housing
  • Vertical display with 180° inversion capability
  • Memory holds last reading for 1 minute
  • Includes calibration certificate
  • Ex designation:
    II 2 G EEx ia IIC T4

Complete Kit

The ET-2109 is supplied as a complete kit
  • tachometer,
  • reflective tape,
  • contact adapter,
  • calibration
  • certificate,
  • instruction manual (english),
  • 4xAAA batteries
  • all in a hard plastic carrying case.

Combination Contact Adapter/Surface speed & length Adapter Included.

Typical Applications

Typical Applications



  • Self-adhesive reflective tapes
  • 4 x 35 pcs.

More details

Related Products


  • Easy planning of calibration
  • Short turnaround
  • Exclusively using a standard which is traceable to Britisch national standards and International standards ISO/IEC 17025
  • Possibility to adjust and repair

More details


Ex designation:
II 2 G EEx ia IIC T4
EC-Certificate of Conformity:
Baseefa 01 ATEX 2301 X
Measuring system:
optical / laser reflection
Measuring Range
3.0 - 99,999 rpm
0.3 - 1,500.0 Meters or Yards/min
(4,500 ft/min) or seconds
Optical Sensing Range
2 - 80" / 50 - 2000mm
Capture Mode
0.1 Sec
0-99999 revs or length in linear
Time Interval
0-99999 seconds (auto)
Memory Hold
Holds last reading for 1 minute
On Target Indicator
Housing Material
High Flow ABS - Metalised
4xAAA supplied
21 L x 4 W x 3.5 D - cm
Measuring Wheel
Included, 0.1 meter circumference
Weight (kit)
0.4 Kg
1 year
Sensing Distance
1 meter (39 inches)
Battery Life
6 hours continuous (shorter when using rechargeable type
Display Update Rate
0.8 seconds/update (0.1 sec for Max Value capture)
IMPORTANT NOTE: These models must only be used with Duracell "Procell" batteries which are officially approved for this instrument. Use of other AA cells will invalidate I.S. Certification.

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Product name
ET-2109LSR - Intrinsically Safe Tachometer
€ 699,00 


Product name
10009S - Self-adhesive reflective tapes
€ 15,00 
All mentioned prices are excluding VAT & excluding shipment costs.
Availability: Available , preorder 1-2 weeks , special order, request