OneWeight® ambulance cot scale
Real weight. Right dose.
Measured patient weight from the cot, sent straight into OneDose.
FDA-registered. Offered as a subscription.
The problem
Estimated weight is the weak link.
43%
of EMS weight estimates miss by more than 5%
Under half
of Broselow estimates land within 10%
12.7%
of pediatric dosing errors trace to weight estimation
Sotherlund et al., JEMS, 2022. Wells et al., Prehospital and Disaster Medicine, 2023. Hoyle et al., MI-PEERS, 2026.
The hardware
Built into the cot. Out of the way.
Low-profile scale plates mount to the cot frame, and the side display shows the weight as it syncs to OneDose.
- No drillingMounts to the frame without altering your cot.
- Mattress on topPatients ride on the same mattress as always.
- Syncs to OneDoseThe weight lands in the app on its own.
How it works
Weigh. Sync. Dose.
Weight appears in OneDose as soon as the patient is on the cot, and every weight-based dose recalculates.
- No manual entryNobody types a number mid-call.
- No estimatingMeasured, not guessed from age or length.
- No mathThe dosing engine does the calculation.
Accuracy
Accuracy you can dose on.
In a UNMC IRB study, 98% of OneWeight readings fell within 5% of a certified standing scale.
“With OneWeight, we know we have accurate weights.”
Eric Murray
Director, Southwest Teller County EMS (CO)
UNMC IRB study, n=50 adults. Pediatric comparison: internal study, n=50.
Built for the rig
Tough enough for every call.
FDA
Registered medical device
Crash tested
SAE J3043 and AMD-028
IP64
Dust and water resistant
700 lb
Weight capacity
~100
Rides per charge
No drilling
Mounts without altering your cot
Minnesota
Where every unit is made
Patented
U.S. Patent No. 12,117,334
Compatibility
Fits the cots you already run.
Stryker Power-PRO
Stryker Power-PRO 2
Stryker Performance-PRO
Ferno iNX
Ferno POWER X1
Ferno POWER X2
Stryker Power-PRO
Stryker Power-PRO 2
Stryker Performance-PRO
Ferno iNX
Ferno POWER X1
Ferno POWER X2
Where it matters most
Every kilogram counts.
Pediatrics
Weigh the child instead of estimating from age or length.
Airway and RSI
Induction and paralytic doses start from a measured weight.
Stroke care
Weight-based thrombolytic dosing on mobile stroke units.
“OneWeight gives our providers precise patient weights in critical situations, virtually eliminating any errors in delivering weight-based medications, particularly for pediatric patients.”
Chief John Spencer
Suffield Volunteer Ambulance (CT)
Get started
Put real weight on every call.
OneWeight is offered as a subscription. Talk to our team for a quote for your fleet.