DNFT performs monitoring and shutdown functions like No-Flow, Low-Flow or Excessive-Flow for Divider-Block Lubrication Systems. The DNFT is a totally enclosed solid state electronic device for detecting Slow-Flow and No-Flow on in-line progressive lubrication systems.  Part numbers may include: 000149, 000353, 000360, 000506, 000507, 000518, 000519 and many others..........

The Digital No-Flow Timer incorporates a crystal oscillator to accurately monitor the cycle time of the lubrication system enabling precision timed shutdown capability. An internal Lithium battery powers it, which is easily replaceable.


The Digital No-Flow Timer is an ISO 9001 certified product and the ISO certification can be viewed here. All Digital No-Flow Timers also come with a 2 year warranty and we carry the replacement batteries as well in stock.

The DNFTs come in three models to switch voltages up to 240 VDC:


  • LED model: For more information on our LED applications: CLICK HERE to download the information sheet.
  • LED-PS model: For more information on our LED-PS applications: CLICK HERE to download the info sheet.
  • LCC model: For More information on our LCC applications: CLICK HERE to download the information sheet.
  • PRG-PS model: For more information on our PRG-PS applications: CLICK HERE to download the information sheet.


If you have any questions about Whitlock products, DNFT Switches, Batteries or other Click Here


Batteries (DNFT Replacement)

Diesel/Gasoline Fuel Additives, Fuel Filtration, Oil Bypass Filtration, Specialty Lubricants, Car Care Products

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Combustion Technologies is an authorized dealer for Whitlock Instruments and offers world-wide shipping options.


​Whitlock, Digital No-Flow Timer for Compressor Lube Systems:

DNFT models LED, LCC & PRG have replacement lithium batteries. Email us about part number: DNFT-000505

Purge Gun


The lubrication purge gun is an easy-to-use, lever-action hand pump lubricator. The lubrication purge gun can be used to manually purge oil systems, test oil systems, or test the condition of a divider valve system. The lubrication purge gun's rugged cast iron head and aluminum chamber make it very durable and long lasting. The custom machined aluminum housing has slotted "windows" which 

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Lubrication Monitors


A digital lubrication monitor is an electronic device that combines the latest technology in microprocessor and transistor components for detecting SLOW-FLOW and NOFLOW conditions of divider block lubrication systems. A digital lubrication monitor displays total run-time hours and total oil consumption in pints. Lubricant flows through the divider valve assembly forcing the divider block

pistons to cycle, operating the proximity switch. It's internal microprocessor resets the timer, lights the LED, and allows the unit to continue operation by monitoring the proximity switch. The blink of the LED indicates one complete cycle of the lubrication system and enables the operator to accurately monitor and control oil consumption rates. The pulse must be received in a predetermined time or a shutdown will occur.

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Air throttles are used to directly control the power output of engines. Air throttles part numbers are:

  • 000642
  • 000774

enables the user to easily see the oil level remaining. This allows the user to refill the chamber before it is completely emptied, preventing air from being pumped into the system. The 40 inch hose assembly includes it's own built-in check valve and is rated for 5000 psi as shown on the liquid-filled pressure gauge.​


Note: If you need a price quote on DNFT/Whitlock products, please fill out the form on our contact page of email us direct.
All Whitlock/DNFT products are sold direct from Combustion Technologies and not through our distributors.

Call us @ 866-680-3055 or Email (Click Here) for your DNFT make and model information today.

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Proximity Switches 


Proximity switches are devices that are used to accurately monitor fluid or grease lubrication systems. They are completely sealed and specially manufactured for industrial use. The proximity switch is very easy to use an can be installed on either side of the divider block. Part numbers may include: 000169, 000170, 000171, 000172 For model and part numbers please CLICK HERE​ for product brochure and information. 

Pulse Width Modulation (PWM) Throttles (CLICK HERE)

This a microprocessor based product that converts control air pressure to pulse width modulation (PWM). Switch, 4-20mA, 0-9V/1-9V and RS 232 can also used as input to generate the PWM output signal. PWM is the required signal to throttle the CAT ECM from 0-100%. There is a serial interface provided to facilitate programming and setup. When multiple engines are chained together this throttle can be adjusted to even load distribution. This will also respond to serial commands to throttle the engine.


Analog Throttles


This a microprocessor based product that converts control air pressure to voltage (analog signal). Switch, 4-20mA, 0-9V/1-9V and RS 232 can also used as input to generate the analog output signal, which is the required signal to throttle the CAT ECM from 0-100%. There is a serial interface provided to facilitate programming and setup. This will also respond to serial commands to throttle the engine. 
For more information on our Air-Throttle applications: CLICK HERE to download the information sheet.