Multi-functional Display Unit to Use Right on the Field or
Output to Advanced Recorder or Logger
Hioki clamp on meters are best-in-class measuring devices incorporating
Hioki’s expertise in current sensing technology. The CM7291 is the
wireless display and output unit for the CT7600 and CT7700 AC/DC Current
Sensor series, creating a standalone clamp meter for field use or enabling waveform
signals to be output to a Hioki memory recorder or logger for further analysis.

Model No. (Order Code)

CM7291For the CT7000 series, with built-in Bluetooth(R) wireless technology

Key Features

• Send measured values to a smartphone or tablet using Bluetooth® wireless technology
• Use the GENNECT Cross dedicated app to display and review measured values and waveforms in real time
• Power supply and signal output for Current Sensor CT7000 series
• Simultaneous dual display of the measured values, frequency, and output rate
• Four output formats to output data to loggers or other devices (via Display Unit)
• Supports AC adapter, AA alkaline batteries, and external power supply

Note: CM7290, CM7291 cannot be used alone. Use with CT7000 series.
When used in combination with the CT7000 sensor series, the frequency
band for current display and waveform output is narrower than the sensor band.

Data can be downloaded to tablets and smartphones using Hioki’s dedicated
apps available from the Google Play or App Store. (CM7291) Search for “HIOKI” and download
the “GENNECT Cross” app.

*Android, Google Play and the Google Play logo are trademarks of Google Inc.
*iOS is a registered trademark of Cisco Technology, Inc. and/or its affiliates in the
United States and certain other countries.
*iPhone, iPad, iPad mini, iPad Pro and iPod touch are trademarks of Apple Inc.
*Apple and the Apple logo are trademarks of Apple Inc. App Store is a service
mark of Apple Inc.
*Microsoft, Windows, Windows Vista, and Excel are either registered trademarks or
trademarks of Microsoft Corporation in the United States and/or other countries.
*Company names and Product names appearing in this catalog are trademarks or
registered trademarks of various companies.
*The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG,
Inc. and any use of such marks by HIOKI E.E. CORPORATION is under license.
*For the latest information about countries and regions where wireless operation is
currently supported, please visit the Hioki website.

Connect to Recorders, Data loggers, and Oscilloscopes

The CT7000 series cannot be used alone. Use with the Display Unit CM7290, CM7291 to connect with Data Loggers and Memory HiCorders..

Basic specifications (Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 1 year)
* Waterproof characteristics intended to maintain measurement function; measuring energized parts while instrument is wet will increase risk of electric shock.

SensorCT7642, 7742CT7636, 7736CT7631, 7731
Measurement parametersDC, AC, DC+AC, Hz
Crest factor3 at 5000 count or 2.5 at 6000 count for AC and DC+AC
Output methodWAVE, RMS, PEAK, FREQ
Input connectorsHIOKI PL 14
Output update timePEAK--- FAST: 0.02 s / NORMAL: 0.2 s / SLOW: 1 s
FREQ--- FAST: FAST: 0.2 s / NORMAL: 0.2 s / SLOW: 3.0 s
(WAVE, RMS: analog output)
PEAK sensing duration2 ms or greater
(during PEAK MAX/PEAK MIN and PEAK output)
Other functionsAuto range, Zero adjustment at power-up, Analysis display, Filter, Output amplification, Display value hold, Backlight , Auto-power save, Save settings, keypad lock
Typical accuracy (WAVE output DC)±2.0% rdg. ±10.8 mV
(60.00 A range)
±2.5% rdg. ±30.8 mV
(60.00 A range)
±1.5% rdg. ±5.8 mV
(60.00 A range)
Typical accuracy (RMS output AC)±2.3% rdg. ±10.8 mV
(60.00 A range)
±2.8% rdg. ±30.8 mV
(60.00 A range)
±1.8% rdg. ±5.8 mV
(60.00 A range)
Communication interfaceBuilt in Bluetooth® 4.0 LE, Display of measured values on an iOS or Android handset (CM7291 only)
Power supplyLR6 alkaline batteries (AA) ×2, Continuous use: 16 h (backlight OFF and WAVE or RMS output, when used with CT7600s), Rated power 2.5 VA
or AC adapter 9445-02/03 (100 to 240V AC), or 5 to 15 V DC external power supply, Rated power 2.5 VA
Dust and water resistance *IP54 (with sensor connected and caps fitted to AC adapter and power connector)
Dimensions and mass52 mm (2.05 in)W × 163 mm (6.42 in)H × 37 mm (1.46 in)D, 220 g (7.8 oz) (including protector and battery)
AccessoriesLR6 alkaline batteries ×2, Protector ×1, Instruction manual ×1

Countries and regions where wireless operation is currently supported (CM7291)

Wireless certificationJapan, United States, Canada, Austria, Belgium, Bosnia and Herzegovina, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey, United Kingdom, Korea, Thailand, Singapore, Australia, New Zealand, Chile, and Mexico
Exempt from the wireless regulationsViet Nam, Hong Kong, Macao, India, Russian Federation, Colombia, Pakistan, Peru, and Georgia
Catalog: AC/DC CURRENT SENSOR CT7000 Series, DISPLAY UNIT CM7290, CM7291Download PDF  [4MB]English
Catalog: GENNECT CROSS SF4071, SF4072Download PDF  [2MB]English

For more information, click here