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4 Technical Specifications
4.1 ECG Measurement
Number of channels: Single channel ECG signal
Electrodes: 3 embedded metal electrodes or using 3 adhesive ECG electrodes by connection to the lead wire.
Measurement modes: the detecting ECG signal can be detected by the following lead selection:
Lead I (between right hand and left hand);
Chest Lead (between right hand and chest);
Lead II (between right hand and left leg).
ECG bandwidth: 1Hz~40Hz
Internal noise level: ≤ 30µVp-p
Heart Rate measuring range: 30bpm~240bpm
Heart Rate measuring accuracy: ±2bpm or ±2% whichever is greater
Display scale: 5.0mm/mV±10%
Common-mode rejection ratio (CMRR): ≥ 60dB
Waveform sweeping speed: 20mm/s±10%
Input loop current: ≤ 0.1µA
Input impedance: ≥ 5 MO
4.2 Power
Power: 2×AAA alkaline batteries
Supply voltage range: 2.7~3.3VDC
Max average working current: ≤ 50mA
Auto power-off: 35s±5s (without operation)
Low battery indication: 2.5VDC±0.2VDC
4.3 Classification
The type of protection against electric shock: Internally powered equipment
The degree of protection against electric shock: Type BF applied part
The degree of protection against harmful ingress of liquid: Ordinary equipment without protection against ingress of liquid.
Electro-magnetic Compatibility: Group I, Class B
4.4 Display
LCD type: colour LCD
Display area: 57.6mm × 40mm
4.5 Data Memory
Up to 10-hour records can be saved in the built-in memory;
Stored data records can be uploaded to the computer by data cable provided by the manufacturer.
4.6 Overall Dimension and Weight
Dimension: (L) 125× (W) 70 × (H) 21.5 mm
Weight: 106g (not including batteries)
5 Accessories
A hanging cord
Two batteries (AAA)
A wallet
A User Manual
A data cable (optional)
An ECG lead wire (optional)
Note: The accessories are subject to change. Please see the Packing List for detailed items and quantity.
6 Maintenance and Service
6.1 Maintenance
The life of this device is 5 years. In order to ensure its long service life, please pay attention to the maintenance.
Please change the batteries, when appears low-voltage icon.
It is recommended to wipe the metal electrode with medical alcohol, when the measuring signal is too weak.
Please wipe the surface of the unit with clean cloth or let it dry in air.
Please take out the batteries if the unit will not be used for a long time.
Storage and Transportation
Ambient temperature: -20 to 60ºC
Relative humidity: 10~ 95%
Atmospheric pressure: 50~107.4KPa
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