Charder HM250U User Manual Download Page 2

Beep!

1. Press

2. When screen displays  0.0 cm  , press         again to 

measure height

>5°

>5°

>5°

>5°

cm ft/

in

Operating instructions

3. After measurement completion*, press         again to 

conduct next measurement

4. Press and hold         to turn off device. The device will 

automatically turn off after 20 seconds if not used

If tilt exceeds 5

°

, orange tilt warning lights 

will appear, and measurement will not 
proceed. Please adjust the angle of the 
device until tilt warning lights disappear to 
conduct measurement.

>5°

>5°

>5°

>5°

Low battery

Height exceeds
250cm / 8'

Height under 
50 cm / 1'8"

Specifications 

Dimensions

50-250 cm
1'8"-8'0"
0.1 cm / 0.1 in

+/-  1 cm

50 x 20 mm

349(W) x 64(D) x 23(H) mm

349(L) x 315(D) x 30(H) mm

190 g(without batteries)

On/Off/Measure

Wireless (optional)

2 AAA batteries

5

°C

~35

°C

15% / 85% RH

Ultrasonic

G-sensor

>5

°

20 seconds 

Model

HM250U

Operation Temperature &
Humidity

CD-IN-00387 REV 001 03/2021

CAUTION

to turn on 

device

NOTE: 

on wireless model, results will be transferred

automatically to receiving device

Height 
Measurement

Graduation

Accuracy

LCD screen

Folded

Unfolded

Device Weight

Key Functions

Data Transmission

Power Supply

Sensor

Level Detection

Tilt Warning

Auto-off

Capacity

Error Messages

General Information

Thank you for choosing this Charder Medical device. It is designed 
to be easy and straightforward to operate, but if you encounter 
any problems not addressed in this manual, please contact your 
local Charder service partner.

General Handling

Measurement accuracy requires the subject's feet, back, and head 
to be straightly aligned.

Safety Instructions

Batteries should be kept away from children. If swallowed,

promptly seek medical assistance.

Expected service life: 5 years.

Observe permissible ambient temperatures for use

Environmental & Cleaning

All batteries contain toxic compounds; batteries should be

disposed of via designated competent organizations. Batteries 
should not be incinerated.

• Device surface should be cleaned using alcohol-based wipes.

Warranty/Liability

The period of warranty shall be eighteen ( 18 ) months,

beginning on the date of purchase. Please retain your receipt as 
proof of purchase.

• No responsibility shall be accepted for damage caused through

any of the following reasons: unsuitable or improper storage, 
use, modifications, natural wear and tear, or dropping onto the 
floor.

• This  device  does  not  contain  any  user-maintained  parts.  All

maintenance, technical inspections, and repairs should be 
conducted by an authorized Charder service partner, using 
original Charder accessories and spare parts.

Disposal

• This product is not to be treated as regular household waste,

but should be taken to a designated collection points for 
electronics. Further information should be provided by local 
waste disposal authorities.

Manufactured by:

Charder Electronic Co., Ltd.

No. 103, Guozhong Rd., Dali Dist.,
Taichung City, 41262 Taiwan (R.O.C.)

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