Extech HD755 Differential Pressure Manometer
Reliable differential pressure measurement for HVAC systems, industrial maintenance, and professional diagnostics
The Extech HD755 Differential Pressure Manometer is a professional measurement instrument designed for technicians and engineers who require dependable pressure readings in HVAC systems, ventilation networks, laboratories, and industrial applications. When researching the Extech HD755 Differential Pressure Manometer Price in Bangladesh, understanding its measurement capabilities, practical benefits, and suitability for your work helps you make an informed purchasing decision. Its differential pressure measurement function supports system evaluation, airflow diagnostics, and pressure-related troubleshooting across a range of technical environments.
The Extech HD755 is designed to measure the pressure difference between two points, making it useful for evaluating pressure relationships in air handling equipment, ducts, filters, and other compatible systems. Differential pressure measurements help engineers identify restrictions, assess ventilation performance, and investigate unexpected pressure variations. The instrument is intended for professional diagnostic work where consistent readings and practical measurement functionality are important. Its suitability for a particular application depends on the required pressure range, measurement medium, connection method, and operating conditions.
Heating, ventilation, and air conditioning professionals can use differential pressure measurement to investigate duct pressure, check filter pressure drop, and assess ventilation system performance. Maintenance technicians can also use pressure readings when troubleshooting air distribution equipment and examining changes in system resistance. In industrial environments, the instrument can support compatible low pressure testing tasks and general equipment diagnostics. Engineers should always verify that the operating pressure, connection configuration, and measurement medium fall within the manufacturer's specified limits before using the device.
A professional manometer should make pressure testing straightforward and help technicians interpret readings efficiently. The Extech HD755 is intended for practical pressure measurement tasks in which portability, clear readings, and convenient access to measurement results support everyday fieldwork. Appropriate hose connections and correct pressure port configuration are essential for obtaining meaningful differential pressure readings. Before taking measurements, users should inspect the connections, select the appropriate units, allow readings to stabilize, and follow the operating instructions supplied by the manufacturer.
Accurate differential pressure measurements can help maintenance teams identify developing problems before they lead to more significant system performance issues. For example, a change in filter pressure drop may indicate that an HVAC filter requires inspection, while unexpected duct pressure readings may point to airflow restrictions or balancing concerns. The Extech HD755 can support this type of investigation when used within its specified measurement capabilities. Reliable results also depend on correct instrument handling, appropriate test connections, regular inspection, and compliance with the manufacturer's calibration recommendations.
Maintaining measurement quality requires proper storage, careful handling, and routine inspection. Users should protect the manometer from excessive moisture, impact, contamination, and operating conditions outside its specified limits. Pressure hoses and fittings should be checked for leaks, damage, or blockages before testing. Regular verification and calibration, where required by the application, help maintain confidence in measurement results. Following the manufacturer's instructions can also reduce the risk of incorrect readings and unnecessary instrument wear.
Before selecting the Extech HD755, engineers should compare the instrument's pressure range, resolution, accuracy, supported measurement units, pressure connections, and compatibility with the intended application. It is also important to consider whether the instrument will be used for HVAC servicing, laboratory testing, industrial maintenance, or general pressure diagnostics. Checking the official product documentation helps confirm technical specifications and identify any accessories needed for the job. Selecting an instrument that matches the actual operating conditions improves measurement reliability and supports efficient maintenance work.
The Extech HD755 Differential Pressure Manometer is a relevant option for professionals seeking a dedicated instrument for differential pressure testing and troubleshooting. It can support HVAC technicians, electrical and mechanical maintenance teams, facility engineers, and industrial service professionals whose work involves compatible pressure measurement tasks. Buyers in Bangladesh should verify product authenticity, warranty coverage, included accessories, manufacturer documentation, and local after sales support before purchasing. Reviewing these details helps ensure that the instrument meets the technical requirements of the intended application and provides dependable service in professional environments.
| Model HD700 | Model HD750 | Model HD755 | |||||
| Range | Resolution | Range | Resolution | Range | Resolution | Basic Accuracy | |
| inH2O | 55.40inH2O | 0.01inH2O | 138.3inH2O | 0.01inH2O | 13.85inH2O | 0.01inH2O | ±0.3%FS |
| psi | 2psi | 0.001psi | 5psi | 0.001psi | 0.5psi | 0.001psi | ±0.3%FS |
| mbar | 137.8mbar | 0.1mbar | 344.7mbar | 0.1mbar | 34.47mbar | 0.1mbar | ±0.3%FS |
| kPa | 13.79kPa | 0.01kPa | 34.47kPa | 0.01kPa | 3.447kPa | 0.001kPa | ±0.3%FS |
| inHg | 4.072inHg | 0.001inHg | 10.18inHg | 0.01inHg | 1.018inHg | 0.001inHg | ±0.3%FS |
| mmHg | 103.4mmHg | 0.1mmHg | 258.5mmHg | 0.1mmHg | 25.86mmHg | 0.01mmHg | ±0.3%FS |
| ozin² | 32ozin² | 0.01ozin² | 80ozin² | 0.01ozin² | 8.00ozin² | 0.01ozin² | ±0.3%FS |
| ftH2O | 4.612ftH2O | 0.001ftH2O | 11.53ftH2O | 0.01ftH2O | 1.154ftH2O | 0.001ftH2O | ±0.3%FS |
| cmH2O | 140cmH2O | 0.1cmH2O | 351.5cmH2O | 0.1cmH2O | 2.59cmH2O | 0.01cmH2O | ±0.3%FS |
| kgcm² | 0.140kgcm² | 0.001kgcm² | 0.351kgcm² | 0.001kgcm² | 0.035kgcm² | 0.001kgcm² | ±0.3%FS |
| bar | 0.137bar | 0.001bar | 0.344bar | 0.001bar | 0.034bar | 0.001bar | ±0.3%FS |
| Dimensions/Weight | 8.2 x2.9 x 1.9" (210 x 75 x 50mm) / 9.80z (280g) | ||||||
HVAC Equipment and Instruments/Manometer Template |
|
|---|---|
| Type (Manometer) | Digital |
| Max Pressure | 0.5 psi (13.84 IN of H2O) |
| Type of Input | Dual, Single |
| Engineering Units (HVAC) | inch H2O, inch Hg, kPa, mmH2O, mmHg, psi |
| Measurement | Absolute, Differential, Gauge |
| Min/Max/Hold | Yes |
Test Equipment General Attributes |
|
| Unique Features | USB port includes software Zero function or offset correction or measurement UNITS of Measure: psi kPa mmHg kgcm2 mbar bar inH2O mmH2O inHg ftH2O ozin2 |
| Warranty | 3 YEARS |
| Safety Approval | CE |
| Interfaces I/O | USB |
| Product Weight | 9.8 LBS |
| Product Height | 1.9 IN |
| Product Length | 8.2 IN |
| Product Width | 2.9 IN |
| Data Logging | Yes |
| HTS/Schedule B Number | 9026208000 |
| ECCN Number | EAR99 |
| Calibration Included | None |
| Battery Type | 9v |
| Power Supply Voltage | 120V/220V Universal, Battery Powered |
| Country of Origin | China |
| Shipping Height | 3.00 IN |
| Shipping Length | 11.50 IN |
| Shipping Width | 9.25 IN |
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