We Checkline Europe B.V. would like to use cookies and similar technologies in order to optimize your shopping experience and this requires your consent. By clicking on the "Accept cookies" button you agree to our use of cookies and similar technologies. If you do not agree, you can refuse the use or customize settings for the respective cookies by clicking on the button "Cookie Settings".You also have the possibility to specify that only certain cookies, which we use on our website, should be activated. This banner will be displayed until you have selected your cookie preferences. If you decide against the use of cookies, we will not use cookies nor similar technologies, except those that are essential for the proper functioning of the website. Click here for our privacy policy

HTM-ATEX Intrinsically Safe Hand-Held Mechanical Tachometer

4 Models, 2-English & 2-Metric
HTM-100F-ATEX 10-10,000 rpm/5-5,000 ft/min
HTM-100M-ATEX 10-10,000 rpm/1-1,000 m/min
HTM-500F-ATEX 30-50,000 rpm/15-25,000 ft/min
HTM-500M-ATEX 30-50,000 rpm/3-5,000 m/min

The HTM-ATEX mechanical hand-tachometer is designed to accurately measure RPM and surface speed on a wide range of applications.
This tachometer is using a pointer and dial to display RPM or surface speed.

Additionally, the range of variation and frequency of variation of the measurement is evident with the speed and span of the movement of the pointer. Includes Peak-Hold button. The 3-Position Range Selector Switch provides the highest possible resolution for each application.

The HTM is supplied with a durable rubber sleeve providing extra ergonomic benefits for comfortable and secure hand-held use and provides an additional measure of physical & environmental protection.
The RED 3-Position Range Selector Switch provides highest possible resolution for each application providing a multiplier of 1X, 10X or 100X for reading of dial.

This ATEX approved version is suitable for zone 1 use, in all gas groups with a temperature class of T4 and is also suitable for mining applications I M2 c.


  • Suitable in all surface industries in hazardous explosive areas
  • Accuracy of ± 0.5% Full Scale
  • Self-contained--- NO BATTERIES required!
  • Supplied as a complete kit with cone & funnel tip adapters, shaft extension & surface speed wheel in foam-fitted carrying case
  • NIST-Traceable Calibration & Test Report optionally available under p/n NISTCAL
  • Memory button holds pointer in "last" position until reset
  • Over-sized Dial (70mm) uses 2 separate color scales making reading RPM (black) and Surface Speed (red) quick and easy
  • Rubber shell on housing provides extra protection and improved grip
  • 3-Position Range Selector Switch provides highest possible resolution for each application
  • Favored in several industries, including elevator maintenance, mining industry and others,

Complete Kit

All models are supplied as a complete kit in foam-fitted carrying case including cone tip and funnel tip adapters, shaft extension and instruction manual.

HTM-100F/500F models include 6" circumference surface wheel while HTM-100M/500M models are supplied with a 0.1 meter circumference surface wheel.

Related Products

HTM Hand-Held Mechanical Tachometer

  • CE-Certified
  • Self-contained--- NO BATTERIES required!
  • Rubber shell on housing provides extra protection and improved grip

More details

HTM Hand-Held Mechanical Tachometer

ET-2109LSR Intrinsically Safe Tachometer

  • Ex designation:
    II 2 G EEx ia IIC T4

More details

ET-2109LSR Intrinsically Safe Tachometer


Included Accessories
  HTM-100F HTM-500F HTM-100M HTM-500M
6" Wheel    
0.1m Wheel    
Cone Tip
Funnel Tip
Shaft Extension

Accuracy ±0.5% Full Scale
RPM Ranges
10-10,000 rpm
x1: 10-100
x10: 100-1,000
x100: 1000-10,000
30-50,000 rpm
x1: 30-500
x10: 300-5,000
x100: 3000-50,000
Surface Speed Range
100-Series Models
5-5,000 ft/min
x1: 5-50
x10: 50-500
x100: 500-5,000
1-1,000 m/min
x1: 1-10
x10: 10-100
x100: 100-1,000
Surface Speed Range
500-Series Models
15-25,000 ft/min
x1: 15-250
x10: 150-2,500
x100: 1,500-25,000
3-5,000 m/min
x1: 3-50
x10: 30-500
x100: 300-5,000
Surface Speed Range
Metric Models
Must divide value on dial by 10
HTM-100M-ATEX and HTM-500M-ATEX models only
Certifications CE
Dial 70 mm diameter, 2-color grid
Dimensions - Tachometer 155 x 85 x 55 mm
Dimensions - Kit 252 x 207 x 60 mm
Housing Material Plastic
Weight 300 g
Warranty 18 months
Operating Temp. 0°C - 40°C
Storage Temp. -10°C - 40°C

Buy Now

HTM-100M-ATEX Hand-Held Mechanical Tach, complete Kit (10-10,000 rpm/1-1,000 m/min)
€ 612,00 
HTM-500M-ATEX Hand-Held Mechanical Tach, complete Kit (30-50,000 rpm/3-5,000 m/min)
€ 754,00 
HTM-100F-ATEX Hand-Held Mechanical Tach, complete Kit (10-10,000 rpm/5-5,000 ft/min)
€ 612,00 
HTM-500F-ATEX Hand-Held Mechanical Tach, complete Kit (30-50,000 rpm/15-25,000 ft/min)
€ 612,00 

DTCA Cone Adapter - Cone Tip for Hand-held tachometers
€ 17,00 
DTFA Funnel Adapter
€ 17,00 
DT6 Rubber Measuring Wheel for Tachometers
€ 30,00 
CDT-Wheel - 0.1 m Circumference Wheel
€ 35,00 
All mentioned prices are excluding VAT & excluding shipment costs.
Availability: Available: 1 - 3 days, Delivery time: 1 - 3 weeks, special order request

Request offer
Your information request is sent!
We'll contact you as soon as possible.