DynaMo Range
User Manual
v0.3
February 2026
VALD DynaMo Health and Safety Manual
2
Contents
1 Introduction ........................................................................................................................ 3
1.1 Product Overview .............................................................................................................................. 3
2 Device Specifications ......................................................................................................... 4
2.1 Operational Description.................................................................................................................... 4
2.2 DynaMo Lite ....................................................................................................................................... 4
2.3 DynaMo Plus ..................................................................................................................................... 8
2.4 DynaMo Max ................................................................................................................................... 12
3 Usage & Safety ................................................................................................................. 16
3.1 Regulatory Statements .................................................................................................................. 16
VALD DynaMo Range User Manual
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1 Introduction
This manual provides important context to help you use your DynaMo device safely and responsibly,
and to support accurate and effective testing. It will give you essential information for proper
operation, handling, care and additional regulatory guidance.
For further information or assistance, please contact:
www.vald.com | support@vald.com
VALD Pty Ltd
115 Breakfast Creek Road,
Newstead, Queensland 4006
AUSTRALIA
1.1 Product Overview
DynaMo Lite
→ Compression dynamometer and inclinometer
→ Fits in palm of hand or in pocket
→ Wearable via Velcro limb wraps
DynaMo Plus
→ Tension/compression dynamometer and inclinometer
→ Inbuilt OLED screen
→ Range of Smart Attachments
DynaMo Max
→ Tension/compression dynamometer and inclinometer
→ Dedicated rig available for IMTP/Belt Squat
→ Highest load capacity and sampling rates
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2 Device Specifications
2.1 Operational Description
The DynaMo is a wireless, battery-powered handheld measurement tool designed to assess
compressive and/or tensive isometric strength, as well as range of motion. It integrates a precision
load cell for force measurement, and an inertial measurement unit (IMU) for capturing movement
data. Measurement results are transmitted via an integrated Bluetooth Low Energy (BLE) module to
companion software for analysis, visualization, and storage.
All DynaMo devices include a USB-C port for charging the internal lithium-ion battery, along with the
power button and an indicator LED. The DynaMo Plus also features a screen for on-device
measurement feedback and tracking. Each DynaMo model has a range of attachments that enable
unique testing configurations.
2.2 DynaMo Lite
Interface
(1) Multicolored LED
(2) USB-C charging port
(3) Power button
→ Hold to turn device on
→ Hold to turn device off
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Attachments and Expansions
Silicon pouch
Limb wraps (3)
→ Small: 30 cm
→ Medium: 50 cm
→ Large: 80 cm
Strength strap
Travel case
Technical Specifications
H A RD W A R E D I M E N S I O N S
U N I T E X C L U D I N G A T T A C H M E N T S
Size
95 mm L x 73 mm W x 42 mm H / 3.7” L x 2.8” W x 1.6” H
Weight
250 g / 0.55 lb
I N T R A V E L C A S E I N C L U D I N G A T T A C H M E N T S
Size
380 mm L x 380 mm W x 78 mm H / 14.9” L x 14.9” W x 3” H
Weight
1.1 kg / 2.42 lb
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S E N S O R S P E C I F I C A T I O N S
F O R C E S E N S O R S P E C I F I C A T I O N S
Sensor type
Load cell
Max sampling rate
225 Hz
Capacity
1,000 N / 100 kg / 220 lb compression
Resolution
1 N
Accuracy
+/- 1%
M O V E M E N T S E N SO R S P E C I F I C A T I O N S
Sensor type
9-Axis Inertial Measuring Unit (IMU): Accelerometer, Gyroscope and Magnetometer
Max sampling rate
225 Hz
Resolution
1 degree
Accuracy
+/- 3 degrees
E L E C T R O N I C S P E C I F I C A T I O N S
P O W E R
Battery
Inbuilt 3.7 V 1,000 mA single-cell lithium-ion battery (non-replaceable)
Battery life
10 hours active use (approx.)
Charging method
USB-C cable (supplied)
Charging requirements
USB 5 V d.c., 200 mA (1 W) minimum, IEC 62368-1 compliant
WARNING: The DynaMo should not be operated while charging is in progress.
W I R E L E S S D E T A I L S
Connectivity
Bluetooth Low Energy 5.1
Frequency
2402 – 2480 MHz
Channels
2 MHz bandwidth, 40 BLE channels with frequency hopping
Modulation
GFSK
EIRP
Max 7.38 dBm
O P E R A T I N G C O N D I T I O N S
Temperature
-10 °C – +40 °C
Humidity
30% – 75%
Pressure
70 kPa – 106 kPa
CAUTION: The surface of the DynaMo may exceed 41°C when operating at maximum ambient temperature.
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T R A N S P O R T C O N D IT I O N S
Temperature
-40 °C – +70 °C
Humidity
10% – 100%
Pressure
50 kPa – 106 kPa
CAUTION: Observe the storage conditions and never store the DynaMo in an automobile except when transporting.
S O F T W A R E R E Q UI R E M E N T S
i OS
Compatible devices
All iOS mobile phones and tablets purchased after July 2017
Operating system
Minimum requirement – iOS 11
A N D R O I D
Compatible devices
All Android mobile phones and tablets purchased after July 2014
Operating system
Minimum requirement – Android 5
A T T A C H M E N T S
Attachments
Silicone Pouch, 3 x Adjustable Sleeves (Small/ Medium/ Large), Strength Strap, Charging
Cable, Carry Case
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2.3 DynaMo Plus
Interface
(1) Multicolored LED
(2) USB-C charging port
(3) Power button
→ Hold to turn device on
→ Hold to turn device off
(4) Zero button
→ Press during testing to zero the device
(5) Peak reset button
→ Press during testing to reset the peak force value
(6) Unlock latch
→ Push inwards to release attachment
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Attachments and Expansions
Curved pad
Flat pad
Palm pad
Tension link (2)
Grip
Ankle strap
Range of motion (ROM) strap
Strength strap
Handle
Carabiner (2)
Small travel case
Large travel case
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Technical Specifications
H A RD W A R E D I M E N S I O N S
U N I T E X C L U D I N G A T T A C H M E N T S
Size
134 mm L x 53 mm W x 53 mm H / 5.2” L x 2” W x 2” H
Weight
300 g / 0.66 lb
I N T R A V E L C A S E I N C L U D I N G A T T A C H M E N T S
Size
370 mm L x 265 mm W x 195 mm H / 14.5” L x 10.4” W x 7.6” H
Weight
4 kg / 8.8 lb
S E N S O R S P E C I F I C A T I O N S
F O R C E S E N S O R S P E C I F I C A T I O N S
Sensor type
Load cell
Max sampling rate
225 Hz
Capacity
2,000 N / 200 kg / 440 lb tension –1,000 N / 100 kg / 220 lb compression
Resolution
1 N
Accuracy
+/- 1%
M O V E M E N T S E N SO R S P E C I F I C A T I O N S
Sensor type
9-Axis Inertial Measuring Unit (IMU): Accelerometer, Gyroscope and Magnetometer
Max sampling rate
225 Hz
Resolution
1 degree
Accuracy
+/- 3 degrees
E L E C T R O N I C S P E C I F I C A T I O N S
P O W E R
Battery
Inbuilt 3.7 V 650 mA single-cell lithium-ion battery (non-replaceable)
Battery life
10 hours active use (approx.)
Charging method
USB-C cable (supplied)
Charging requirements
USB 5 V d.c., 200 mA (1 W) minimum, IEC 62368-1 compliant
Screen
Inbuilt OLED display
WARNING: The DynaMo should not be operated while charging is in progress.
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W I R E L E S S D E T A I L S
Connectivity
Bluetooth Low Energy 5.1
Frequency
2402 – 2480 MHz
Channels
2 MHz bandwidth, 40 BLE channels with frequency hopping
Modulation
GFSK
EIRP
Max 7.38 dBm
O P E R A T I N G C O N D I T I O N S
Temperature
-10 °C – +40 °C
Humidity
30% – 75%
Pressure
70 kPa – 106 kPa
CAUTION: The surface of the DynaMo may exceed 41°C when operating at maximum ambient temperature.
T R A N S P O R T C O N D IT I O N S
Temperature
-40 °C – +70 °C
Humidity
10% – 100%
Pressure
50 kPa – 106 kPa
CAUTION: Observe the storage conditions and never store the DynaMo in an automobile except when transporting.
S O F T W A R E R E Q UI R E M E N T S
i OS
Compatible devices
All iOS mobile phones and tablets purchased after July 2017
Operating system
Minimum requirement – iOS 11
A N D R O I D
Compatible devices
All Android mobile phones and tablets purchased after July 2014
Operating system
Minimum requirement – Android 5
A T T A C H M E N T S
Smart Attachments
Palm Pad, Flat Pad, Curved Pad, Tension Links, Grip Strength Attachment
Other Attachments
Adjustable ROM Strap, Ankle Attachment, Handle Attachment, Adjustable Strap
Attachment, Carabiners, Travel Case
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2.4 DynaMo Max
Interface
(1) Multicolored LED
(2) USB-C charging port
(3) Power button
→ Hold to turn device on
→ Hold to turn device off
Attachments and Expansions
Curved pad
Flat pad
Tension strap
Ankle strap
Handle
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Range of motion (ROM) strap
Carabiner (up to 3)
Lifting base plate
Lifting bar (or belt)
Technical Specifications
H A RD W A R E D I M E N S I O N S
U N I T E X C L U D I N G A T T A C H M E N T S
Size
153 mm L x 50 mm W x 50 mm H / 6” L x 2” W x 2” H
Weight
400 g / 0.9 lb
S E N S O R S P E C I F I C A T I O N S
F O R C E S E N S O R S P E C I F I C A T I O N S
Sensor type
Load cell
Max sampling rate
1,200 Hz
Capacity
10,000 N / 1,000 kg / 2,200 lb
Resolution
1 N
Accuracy
+/- 1%
M O V E M E N T S E N SO R S P E C I F I C A T I O N S
Sensor type
9-Axis Inertial Measuring Unit (IMU): Accelerometer, Gyroscope and Magnetometer
Max sampling rate
225 Hz
Resolution
1 degree
Accuracy
+/- 3 degrees
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E L E C T R O N I C S P E C I F I C A T I O N S
P O W E R
Battery
Inbuilt 3.7 V 400 mA single-cell lithium-ion battery (non-replaceable)
Battery life
10 hours active use (approx.)
Charging method
USB-C cable (supplied)
Charging requirements
USB 5 V d.c., 200 mA (1 W) minimum, IEC 62368-1 compliant
WARNING: The DynaMo should not be operated while charging is in progress.
W I R E L E S S D E T A I L S
Connectivity
Bluetooth Low Energy 5.1
Frequency
2402 – 2480 MHz
Channels
2 MHz bandwidth, 40 BLE channels with frequency hopping
Modulation
GFSK
EIRP
Max 7.38 dBm
O P E R A T I N G C O N D I T I O N S
Temperature
-10 °C – +40 °C
Humidity
30% – 75%
Pressure
70 kPa – 106 kPa
CAUTION: The surface of the DynaMo may exceed 41°C when operating at maximum ambient temperature.
T R A N S P O R T C O N D IT I O N S
Temperature
-40 °C – +70 °C
Humidity
10% – 100%
Pressure
50 kPa – 106 kPa
CAUTION: Observe the storage conditions and never store the DynaMo in an automobile except when transporting.
S O F T W A R E R E Q UI R E M E N T S
i OS
Compatible devices
All iOS mobile phones and tablets purchased after July 2017
Operating system
Minimum requirement – iOS 11
A N D R O I D
Compatible devices
All Android mobile phones and tablets purchased after July 2014
Operating system
Minimum requirement – Android 5
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A T T A C H M E N T S
Attachments
Flat Pad, Curved Pad, Adjustable Strap, Ankle Strap, ROM Sleeve, Handle, 2x Carabiners,
Travel Case
Expansion Pack
IMTP Baseplate, IMTP Lifting Bar, 2x Carabiners
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3 Usage & Safety
3.1 Regulatory Statements
United States (FCC)
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions:
1. This device may not cause harmful interference, and
2. This device must accept any interference received, including interference that may cause
undesired operation.
Canada (ISED)
This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science
and Economic Development Canada’s licence-exempt RSS(s). Operation is subject to the following
two conditions:
1. This device may not cause interference.
2. This device must accept any interference, including interference that may cause undesired
operation of the device.
L’appareil contient des émetteurs/récepteurs exempts de licence qui sont conformes aux CNR
exempts de licence d’Innovation, Sciences et Développement économique Canada. L’exploitation est
soumise aux deux conditions suivantes :
1. L’appareil ne doit pas produire de brouillage.
2. L’utilisateur de l’appareil doit accepter tout brouillage radioélectrique subi, même si le
brouillage est susceptible d’en compromettre le fonctionnement.
CAUTION: Changes or modifications not expressly approved by the party responsible for compliance
may void the user’s authority to operate this equipment.
