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Model/PN: H261-11

NSN Number: 6685-01-147-9063


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Buy, sell, trade-in or rent Howell Instruments H261-11 (H261) Temperature Test Set.


Avionteq offers both new and refurbished or used Howell Instruments H261 Series Temperature Indicator Tester for sale or rent at most competitive price. All refurbished equipment are thoroughly tested and come with our warranty and fresh calibration certificate (when required). You can also sell your excess / surplus Howell Instruments H261 or receive trade-in credit towards purchase of other test equipment.


Howell Instruments H261 Features and Specifications *

The Howell Instruments H261 series checks calibration and operation of TIT indicators and RTD. It weighs 27 lbs with cables and has the following dimension: 14.5 inches H x 9.38 inches W x 12.13 inches D.


  • Simulates thermocouple, resistance temperature devices (RTD's) and other millivolt transducer signals
  • Troubleshoots thermocouples and millivolt sources by measuring their outputs
  • Measures thermocouple circuit resistance
  • Includes synchro input/output circuits to provide testing and troubleshooting of synchro temperature indicator transmitters and receivers (model H261-11)
  • Tests three types of RTD's 


  •  90.38 ohm nickel probe (range: -70 to 300 °C)
  • 50.00 ohm nickel probe (range: -50 to 300 °C)
  • 50.00 ohm platinum probe (range: -70 to 100 °C)




* Howell Instruments H261 technical specifications is provided for reference only. Avionteq cannot ensure accuracy of the technical specifications presented herein. The technical data may not relate entirely to all model and versions of the H261 such as the models sold by Avionteq.

Van Nuys Airport (VNY), Van Nuys, CA 91406 USA