★HNBun 3pcs ECG EKG Caliper Measuring Tool for Measuring Electrocardiogram Wave Sections.

Feature:
√ EKG ECG Caliper Made of high quality brass material, sturdy and durable.
√ Brass arms feels stronger than other materials.
√ Protective plastic cover, 9.7 cm/3.8inches molded ruler for measurement reference.
√ Adjustable screws for arms loose and tight according your requirement.
√ Brass arms for accurate measurement of tracing intervals.
√ Smooth indentation in the middle makes opening, closing easier.
√ Plastic cover with clip for easy attach to a nursing uniform. Lightweight and portable.

SPECIFICATION:
- Item name: EKG ECG Caliper
- Material: brass
- EKG ECG caliper length: 11.5cm/4.5incj
- Plastic cover length: 9.7cm/3.8inch
- Color: black/pink/blue

Package Include：
3 x EKG calipers