TM Series Hourmeters

TM Series hourmeters record the operating time of vehicles or powered equipment.

They are electromechanical and have a quartz base time counter that ensures accuracy (better than ±0.02% over the entire range). They can record up to 99,999.9 hours and include an automatic recycle to zero hours feature. The TM Series models have a shock-proof and tamper-proof, totally sealed case made of engineered plastic. These small, lightweight time meters are rugged and durable. They are the answer to applications requiring a low DC power and reliable hourmeter. These hourmeters can be used on any engine where operating time needs to be recorded. All it requires is a DC power source (see specifications).

TM Series Hourmeters
  • CE
Specifications Downloads How To Order
  • Power Input: 12 to 24 VDC
  • Power Consumption: Less than 0.03 W @ 12 VDC; 0.4 W @ 24 VDC.
  • Accuracy: ± 0.02% over entire range.
  • Temperature Range: -40°F to 185°F (-40°C to +85°C).
  • Dial (Face Plate): White numerals (over black background).
  • Time Scale: 6-digits 99,999.9 hours with automatic recycle to zero
  • Vibration Resistance: Withstands 10 to 75 Hz @ 1 to 8 G’s.
  • Case Material: Plastic.
  • Bezel: Stainless Steel.
  • Terminations: 1/4 in. (6 mm) male blade terminals.
  • Shipping Weight: 5 ozs. (140 g).
  • Shipping Dimensions: 3-1/8 x 3 x 3 in. (79 x 76 x 76 mm) approximately.

 WARNING: This product may expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information about California Propsition 65, go to or visit our California Proposition 65 page.

Additional product documentation can be found on our product support website or by clicking the Help Center button above.

Part Number Model/Description Notes
20700192 TM4592 6 digits w/Bright Stainless Steel Bezel
20700193 TM4593 6 digits w/Black Stainless Steel Bezel
20700194 TM4594 6 digits w/SAE Bright Stainless Steel Bezel
20700195 TM4595 6 digits w/SAE Stainless Steel Black Bezel

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