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Custom Uninterruptible Power Supply UPS designs as well as industrial, Military, and Tactical UPS and power management systems


Double your productivity or cut your calibration time in half
  • Temperatures from –15 °C to 350 °C in one unit
  • Two wells in each block for simultaneous comparison calibrations
  • Rugged, lightweight, water-resistant enclosure
You’ve been asking for it and now we’re making it for you. Hart’s new Model 9009 Industrial Dual-Block Calibrator lets you calibrate at hot and cold temperatures at the same time. Double your productivity or cut your calibration time in half—either way you look at it, your in-field temperature calibrations just got easier.


  • Pressure calibrator with built-in electric pump for one-handed pressure calibration
  • Offers best-in-class pressure measurement uncertainty of 0.025%
  • Measures and sources mA with best in class 0.015% accuracy to test valves and I/Ps
  • Calibrates 30 psi and 100 psi pressure ranges
  • Features precision pressure adjustment vernier for easy and accurate pressure calibration


  • Max/Min
  • Frequency weighting ranges: A, C
  • Auto power off
  • Auto ranging
  • Backlit display


  • True-RMS digital multimeter with the features professional technicians prefer
  • Increases productivity with manual and automatic ranging, Display Hold, Auto Hold, and Min/Max-average recording
  • Measures AC and DC voltage to 1000 V
  • Delivers accurate True-RMS AC current and voltage plus frequency, capacitance, resistance, continuity and diode measurements
  • Safety rated CAT III 1000 V, CAT IV 600 V


  • Automatically measure AC and DC voltage up to 600 V with precise digital resolution
  • Measure current up to 100 A without breaking the circuit with OpenJaw™ design
  • Troubleshoot resistance problems up to 1000 Ω
  • Work in tight spaces with detachable Slim Reach probe tips