Model M5I

Advanced Force / Torque Indicator

NEW – high speed 500 Hz data output rate

The M5I advanced digital force / torque indicator is designed to work with a wide range of Mark-10 remote force and torque sensors (see below). With exclusive Plug & Test® technology, all calibration and configuration data is saved within the sensor’s smart connector, not the indicator, allowing for true interchangeability. Sensor password protection prevents use of an unauthorized sensor. In addition, all sensors are fully compatible with the more basic 3I force / torque indicator.

The M5I shares its menu structure and most specifications with Series 5 digital force gauges. The sampling rate is a blazing fast 7,000 Hz, producing accurate results even for quick-action tests. A large, backlit graphics LCD displays large, legible characters, while the simple menu navigation allows for quick access to the indicator's many features and configurable parameters. Data can be transferred to a PC or data collectors via USB, RS-232, Mitutoyo (Digimatic), or analog outputs.

On-board data memory for up to 1,000 readings is included, as are statistical calculations with output to a PC. Integrated set points with indicators and outputs are ideal for pass-fail testing and for triggering external devices such as an alarm, relay, or test stand. An analog load bar is shown on the display for graphical representation of applied force or torque.

The M5I's averaging mode addresses the need to record the average load over time, while external trigger mode makes switch activation testing simple and accurate.

The M5I includes MESUR® Lite data acquisition software. MESUR® Lite tabulates continuous or single point data. Data saved in the indicator's memory can also be downloaded in bulk. One-click export to Excel easily allows for further data manipulation.


  • Interchangeable force and torque sensors through Plug & Test® technology (sensors are sold separately)
  • High-speed 500 Hz data output rate
  • Sensor password protection, for preventing use of an unauthorized sensor
  • Password protection for individual keys and calibration
  • High-speed 7,000 Hz sampling rate
  • USB, RS-232, Mitutoyo, and analog outputs
  • Large backlit graphic display
  • 1,000-point data memory with statistics (min, max, mean, standard deviation) and outputs
  • Live load bar graph with set point markers
  • Programmable set points, with alarms and outputs
  • Peak readings and set points always displayed
  • Averaging mode - calculates average readings over time
  • External trigger mode - for switch contact testing or remotely stopping display update
  • Automatic data output via USB/RS-232
  • 5 selectable units of measurement
  • Configurable audio alarms and key tones
  • CE mark


Accuracy:  ±0.1% of full scale + sensor
Sampling rate:  7,000 Hz
Data output rate: up to 500 Hz*
Power: AC or rechargeable battery. Multi-step low battery indicator is displayed, gauge shuts off automatically when power is too low.
Battery life: Backlight on: up to 7 hours of continuous use Backlight off: up to 24 hours of continuous use
Outputs: USB / RS-232: Configurable up to 115,200 baud. Automatic output available up to 250 Hz. Includes Gauge Control Language 2 for full computer control.
Mitutoyo (Digimatic): Serial BCD suitable for all Mitutoyo SPC-compatible devices.
Analog: ±1 VDC, ±2% of full scale at capacity.
General purpose: Three open drain outputs, one input.
Set points: Three open drain lines.
Configurable settings: Digital filters, outputs, automatic output (via USB/RS-232), automatic shutoff, default settings, averaging mode, external trigger, passwords, key tones, audio alarms, backlight, calibration
Safe overload: 150% of full scale (display shows “OVER” at 110% and above)
Weight: 0.7 lb (0.3 kg)
Shipping weight: 0.7 lb (0.3 kg)
Environmental requirements: 40 – 100°F, max. 96% humidity, non-condensing
Warranty: 3 years (see individual statement for further details)
HS code: Model no. HS code:
M5I (all models) 9024100000
Country of origin: USA

* Firmware version 2.3.3 or higher required

Plug & Test® Sensors

Select from a broad range of interchangeable force and torque sensors, with force ranges up to 10,000 lbF (50 kN) and torque ranges up to 5,000 lbFin (550 Nm)

Plug and Test® Force Sensors


S-beam force sensors, tension and compression


Miniature button force sensors, compression only


Inline force sensors, tension and compression


Miniature S-beam force sensors, tension and compression


Fully enclosed smart sensors, push and pull


Wire crimp pull sensor, tension only


S-beam force sensors for Series F Advanced Test Frames


Integrated force sensor for Series F Advanced Test Frames

Plug and Test® Torque Sensors


Universal torque sensors


Universal torque sensors with interchangeable attachments


Tool calibration torque sensors


Closure torque sensors


High capacity torque sensors

In The Box

The M5I Force / Torque Indicator is shipped as shown at left, and includes the following accessories:
(1) Carrying case
(1) USB cable
(1) AC adapter
(1) Battery
(1) Certificate of calibration without data

Force and torque sensors are available separately.

Optional Equipment

Table top stand (AC1100)
Conveniently positions the indicator for easy viewing.
Includes thumb screws for indicator installation and thru holes for bench mounting.

MESUR®gauge Plus software (15-1005)

Tabulates and plots load vs. time or load vs. travel. Also calculates statistics, exports to Excel, and more.
Output cables
Send test data to a PC, statistical printer, or other data collector for further analysis.
Combined certificate of calibration, indicator with sensor (CERT-SI)
Mark-10 will calibrate and supply a certificate of calibration for the indicator and one sensor, instead of separate certificates.
No-charge option at time of purchase.



Ordering Information

Model Description US Price
M5I Force/torque indicator, 110V $1,025.00
M5IE Force/torque indicator, 220V European Plug $1,025.00
M5IU Force/torque indicator, 220V UK Plug $1,025.00
M5IA Force/torque indicator, 220V Australian Plug $1,025.00
Additional Items to Consider
15-1005 MESUR®gauge Plus software $710.00
AC1109 Cable, RS-232 $80.00
AC1111 Spare USB cable $30.00
AC1118 Spare rechargeable battery $20.00
AC1030 Spare AC adapter, 110V $45.00
AC1031 Spare AC adapter, 220V EUR $45.00
AC1032 Spare AC adapter, 220V UK $45.00
AC1035 Spare AC adapter, 220V AUS $45.00
AC1100 Stand, tabletop, indicator/torque gauge $175.00
CERT-SI Combined certificate of calibration with data, indicator + sensor, calibrated as a set $0.00