Atom AT-940 Manual Mercurial Sphygmomanometer

The Atom AT-940 is a manual aneroid sphygmomanometer designed for accurate, reliable auscultatory blood pressure measurement in home and clinical settings. Constructed with a zinc alloy body and non-stop manometer mechanism for lasting durability, it features a large, easy-to-read dial and a smooth pressure relief valve with a metal air needle for controlled, precise deflation during measurement.

The universal extra-durable nylon cuff with Velcro strip fits arm circumferences of 22 to 42 cm and is designed to support one-handed application — particularly convenient in single-user or self-monitoring scenarios. A supercharger check valve with a reticulated filter provides protection against dust buildup inside the inflation pathway, helping to maintain long-term performance. The lightweight, portable design is complemented by a sturdy carrying case for protection and convenience. A 12-month warranty is included.

Why Choose Atom Sphygmomanometer

• Universal Nylon Cuff 22–42 cm: Extra-durable nylon with Velcro closure covers most adult arm sizes and supports one-handed application.
• Zinc Alloy Body: Durable, high-quality construction for long-lasting clinical performance.
• Non-Stop Manometer Mechanism: Precision aneroid dial mechanism designed for consistent, accurate pressure readings.
• Large Easy-to-Read Dial: Clear, large number dial for easy readability during auscultatory measurement.
• Smooth Pressure Relief Valve: Metal air needle valve provides precise, smooth deflation control for accurate Korotkoff sound auscultation.
• Dust Protection Filter: Supercharger check valve with reticulated filter prevents dust ingress that could affect long-term performance.
• Carrying Case Included: Sturdy, portable case for protected transport and storage.
• 12-Month Warranty: Backed by a one-year warranty from Atom.
• For Clinical and Home Use: Suitable for healthcare professionals and trained home users.

Product Specifications

Usage Instructions

1. Have the patient rest for at least 5 minutes. Seat them with feet flat and the arm at heart level.
2. Wrap the universal cuff around the upper left arm, 2–3 cm above the elbow. Secure the Velcro closure snugly.
3. Place the stethoscope diaphragm over the brachial artery below the cuff edge.
4. Close the pressure relief valve and inflate the cuff to approximately 30 mmHg above the expected systolic pressure.
5. Open the valve slowly (2–3 mmHg per second). Listen for the first Korotkoff sound — this is the systolic reading on the dial.
6. Continue deflating. Note where sounds disappear — this is the diastolic reading. Record both values.
7. Fully deflate, remove the cuff, and return the device to its carrying case.

Warnings and Precautions

• This is a manual auscultatory device requiring clinical training for accurate use — not suitable for untrained home users.
• A stethoscope is required for measurement — not included with this device.
• Have the device calibrated periodically by a qualified technician to maintain accuracy.
• Do not over-inflate beyond safe pressure limits.
• Ensure the bladder is fully deflated before each new measurement.

Package Contents

• 1 × Atom AT-940 Aneroid Sphygmomanometer
• 1 × Universal Nylon Cuff (22–42 cm)
• 1 × Carrying Case

Frequently Asked Questions