KANOMAX 6720-DP Digital Differential Pressure & Air Velocity Meter
| Brand | KANOMAX |
|---|---|
| Origin | Liaoning, China |
| Model | 6720-DP |
| Pressure Range | −2500 to +2500 Pa |
| Accuracy (Pressure) | ±1.5% of reading ± 0.25 Pa |
| Resolution (Pressure) | 0.001 Pa |
| Air Velocity Range (with Pitot Tube) | 0.15–40 m/s |
| Air Velocity Range (with Air Velocity Matrix) | 0.15–15 m/s |
| Accuracy (Velocity) | ±3% of reading ± 0.05 m/s (for v > 0.25 m/s) |
| Resolution (Velocity) | 0.01 m/s |
| Display | 4.3-inch full-color capacitive touchscreen |
| Data Storage | 8,000 readings (instrument), 10,000 readings (mobile app) |
| Operating Temperature | 0–60 °C (non-condensing) |
| Storage Temperature | −20–70 °C (non-condensing) |
| Power | 4 × AA alkaline batteries (≈14 h continuous operation) or DC 5 V input |
| Weight | ≈390 g |
| Communication | Bluetooth 4.2, USB data export |
| Compliance | Designed for ISO 14644, ISO 14645, EN 13779, and USP <797> environmental monitoring workflows |
Overview
The KANOMAX 6720-DP is a high-precision, handheld digital differential pressure and air velocity meter engineered for quantitative environmental and HVAC system validation in controlled environments. It operates on the principle of piezoresistive pressure transduction combined with dynamic pressure compensation algorithms, enabling accurate measurement of low-differential pressures across filters, ducts, and containment barriers—critical for maintaining directional airflow integrity in biosafety cabinets (BSCs), cleanrooms, and pharmaceutical isolators. Unlike conventional analog gauges, the 6720-DP integrates dual-sensor architecture: one for static/differential pressure (−2500 to +2500 Pa) and another optimized for dynamic pressure inputs from pitot tubes or multi-point air velocity matrices. Its real-time calculation engine supports simultaneous display of face velocity, flow rate (when paired with duct geometry), and pressure differentials—all traceable to NIST-traceable calibration standards.
Key Features
- 4.3-inch full-color capacitive touchscreen interface with intuitive icon-based navigation and multi-language support (English, Japanese, Chinese, Korean, Spanish)
- Dual-mode operation: direct differential pressure measurement via built-in ports or air velocity profiling using optional pitot tubes (0.15–40 m/s) or 3×3 air velocity matrix probes (0.15–15 m/s)
- Bluetooth 4.2 wireless connectivity for secure pairing with iOS/Android devices; supports real-time data streaming, remote configuration, and timestamped logging
- Onboard statistical processing: automatic computation of min/max/mean/cumulative values per test session; K-factor adjustment for probe-specific calibration correction
- Extended local storage capacity (8,000 records) with synchronized cloud-ready backup via companion mobile application (10,000 records)
- Low-power architecture: 14-hour continuous runtime on four AA alkaline cells; auto-sleep mode activates after 5 minutes of inactivity
- Robust mechanical design: IP54-rated enclosure, shock-absorbing rubberized housing, and ergonomic grip for single-hand operation in confined spaces
Sample Compatibility & Compliance
The 6720-DP is validated for use with non-corrosive, non-particulate-laden gases—including ambient air, nitrogen, and compressed dry air—within its specified operating temperature range (0–60 °C, non-condensing). It meets the functional requirements of ISO 14644-3:2019 (cleanroom testing), ISO 14645-1:2017 (microelectronics cleanrooms), EN 13779:2007 (ventilation performance), and USP Annex (pharmaceutical compounding environments). While not intrinsically safe, it complies with IEC 61000-4 electromagnetic compatibility standards and is routinely deployed during FDA pre-approval facility audits for HVAC commissioning, BSC certification (per NSF/ANSI 49), and ISO Class 5–8 room requalification. All factory calibrations are documented with certificate of conformance referencing ISO/IEC 17025-accredited procedures.
Software & Data Management
KANOMAX provides a dedicated cross-platform mobile application (iOS/Android) that functions as both a remote control interface and a lightweight data analysis workstation. The app enables parameter configuration (unit selection, averaging time, alarm thresholds), live graphing of pressure/velocity trends, and export of CSV-formatted reports compliant with GLP/GMP documentation requirements. Audit trail functionality includes user login tracking, timestamped edits, and immutable record locking—supporting alignment with FDA 21 CFR Part 11 electronic record controls when used with organizational authentication protocols. USB data export (via included micro-USB cable) delivers raw datasets compatible with Excel, MATLAB, and LabVIEW for advanced statistical modeling or integration into enterprise CMMS platforms.
Applications
- Biosafety cabinet face velocity mapping and inflow/exhaust balance verification
- Cleanroom pressure cascade validation (e.g., ISO Class 7 anteroom → ISO Class 5 filling suite)
- HVAC duct static pressure profiling and fan performance curve generation
- New air intake balancing and exhaust stack differential pressure monitoring
- Filter leak testing support (paired with aerosol photometers for upstream/downstream correlation)
- Pharmaceutical isolator glove port differential pressure surveillance per EU GMP Annex 1
- Academic and industrial aerodynamic research requiring portable, high-resolution pressure/velocity co-measurement
FAQ
What calibration standards does the 6720-DP conform to?
The instrument is calibrated against NIST-traceable reference standards in accordance with ISO/IEC 17025 procedures. Calibration certificates include uncertainty budgets and are issued with each unit shipment.
Can the 6720-DP be used in explosive atmospheres?
No. The device is not rated for hazardous locations (ATEX/IECEx) and must only be operated in non-classified environments with non-flammable, non-corrosive gas media.
Is firmware upgradable in the field?
Yes. Firmware updates are delivered via the mobile application or desktop software and require no hardware modification or service center intervention.
Does the device support automated report generation for regulatory submissions?
While the unit itself does not generate PDF reports onboard, the companion app exports fully formatted CSV files with metadata (operator ID, location tag, timestamp, sensor ID), enabling seamless import into validated reporting systems used in regulated industries.
How is traceability maintained during long-term deployments?
Each measurement record stores embedded calibration expiration dates, sensor serial numbers, and environmental context (ambient temperature/humidity if external sensors are connected), ensuring full metrological traceability throughout the data lifecycle.


