Altek 235 Loop Calibrator | Replace it with the updated PIE 235

Altek 235 Voltage calibrator – no longer in production!

The Altek 235 was designed back in 1985 and discontinued in 2013. The PIE 235 matches the Altek in fit, form and function with a few features bringing the design into the 21st century. It has a rubber boot and lower profile switches for protection in the field and a backlit display making it easier to use in the dark corners of your plant. Instead of the three expensive 9V batteries in the Altek the PIE uses four less expensive common “AA” batteries. The PIE has the same resolution and accuracy as the Altek with longer battery life letting you calibrate more instruments between battery changes. It also has a bonus function to calibrate pH instrumentation.

PIE 235 vs Altek 235 Discontinued - Suggested replacement PIE 235

Advantages of the PIE Model 235 over the Altek 235 voltage calibrator

  • Voltage calibrator has wider ranges with greater accuracy
    More than twice as accurate with 10 times greater resolution.
  • Automatic stepping
  • Larger display with backlight
    Easy viewing in dark locations
  • More Resistant to Accidental Damage
    Rubber Boot and Stronger Switches
  • Separate Battery Compartment with 4 “AA” Batteries
    No more removing housing with screwdriver to replace three expensive 9V batteries. Calibration seals remain intact.
  • Simulate a pH probe
    Calibrate pH transmitters and analyzers before attaching probe to verify that each is working correctly.
  • Includes Certificate of Calibration
    All PIE Calibrators come with a free signed and dated certificate. Altek’s come only with an unsigned Statement of Calibration Practices with a certificate of calibration available for an extra charge.

Looking for more than just an Altek 235 replacement?

Why choose a PIE 235 instead of some other brand of voltage calibrator? We are the same team that designed the Altek 235 and the Altek 334A and no other manufacturer has as much voltage and milliamp calibrator experience as PIE. PIE also manufactures a complete line of milliamp, voltage, thermocouple, RTD and frequency single function calibrators as well as multifunction calibrators matching and surpassing the Altek line of handheld calibrators.

When it is time for service on your Altek milliamp calibrator PIE has the most experience in calibration and repair of Altek electronic calibrators. Or, if it is time to upgrade or replace a failing Altek 235 calibrator, we offer a discount on a new PIE calibrator similar to the Altek that you are replacing – in working or non working condition! Click for repair and calibration pricing.

Replacing a different Altek Calibrator? Click Altek Calibrator Replacements or download the complete Altek Calibrator Replacement Guide