Description
The HTC PM‑6115 Digital Manometer is a high-performance instrument tailored for HVAC professionals, cleanroom validation teams, facility engineers, and industrial maintenance operators. Designed to measure differential pressure accurately over a broad range—including HVAC ducts, air filters, ventilation systems, and gas supply lines—this manometer delivers precision, reliability, and ease of use in a compact handheld form.
This model supports eleven selectable pressure units—including psi, inH₂O, mbar, kPa, inHg, mmHg, oz/in², ftH₂O, cmH₂O, kg/cm², and bar—ensuring compatibility with a wide variety of industry standards. It measures up to ±15.00 psi (approximately ±415.2 inH₂O, ±1034 mbar) with exceptional resolution: 0.01 psi, 0.1 inH₂O, and 1 mbar. The sensor maintains an accuracy of ±0.3% of full scale, linearity within ±0.1% FS, and repeatability around ±0.25% FS, guaranteeing consistent, reliable readings across repeated measurements.
The PM‑6115 features a large backlit LCD display designed for easy viewing in low-light conditions or confined spaces. The multi-function screen provides clear indication of pressure readings, active units, and icons for MAX/MIN/Average logging, Data Hold, auto-off, and error statuses. If the measured pressure exceeds the device’s range, “ERR1” or “ERR2” alerts are displayed to prevent misinterpretation.
Functionality is enhanced by essential measurement modes such as Data Hold, MAX/MIN/Average readings, and quick unit-switching, enabling efficient performance during tasks like duct balancing, filter pressure drop tracking, and differential checks across rooms or equipment zones. The manometer also supports offset zero calibration and differential measurements for improved flexibility.
Connection setup is straightforward: the device is equipped with 1/8″ (3.18 mm) quick-connect pressure ports, allowing easy insertion of the included soft and hard tubing, along with metal adapter fittings for varied test configurations. Standard accessories which facilitate immediate deployment include a soft carrying case, soft/hard tubing, metal gas mouth adapters, and a user manual.
Power is provided by a standard 9 V battery (6F22). The device includes Auto Power-Off for battery conservation and a low battery indicator to alert users in advance of shutdowns, ensuring uninterrupted field performance. With dimensions of roughly 140 × 20 × 50 mm and a weight of approximately 400 g, the unit remains highly portable and ergonomically designed for one‑hand use and field portability.
Operating conditions are specified for ambient temperatures between 0 °C and 40 °C (32–104 °F), non‑condensing humidity up to 90%. Storage conditions range from –10 °C to +60 °C, making the device suitable for mechanical rooms, labs, offices, and moderate industrial environments.
Common use cases for the PM‑6115 include:
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Measuring static and differential air pressure in HVAC ducts or between zones
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Validating cleanroom pressure differentials to meet ISO or regulatory guidelines
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Checking filter resistance and health in air handling units or HEPA systems
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Balancing pressure across intake and exhaust zones in controlled environments
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Performing gas line or compressed-air system diagnostics in labs and service areas
Its precision, multi-unit flexibility, data logging, and error indication features make it a trusted choice for professionals requiring accurate pressure readings and reliable tools in the field.
Key Features Summary:
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Wide measurement range: ±15 psi / ±415.2 inH₂O across 11 units
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High precision: ±0.3% FS accuracy, excellent linearity and repeatability
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Clear backlit display with MAX/MIN/Average, Data Hold, and error alerts
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Quick-connect ports and comprehensive tubing kit included
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Portable and ergonomic: lightweight, battery-powered with Auto-Off and low-battery alert
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Ready for HVAC, environmental, lab, and cleanroom diagnostics
In summary, the HTC PM‑6115 Digital Manometer uniquely combines high-resolution pressure measurement, multi-unit flexibility, user-friendly interface, and rugged portability. It is an ideal solution for HVAC technicians, cleanroom inspectors, industrial facility managers, and maintenance professionals who require dependable, precise differential pressure readings in a compact instrument.


Aakruti Narayan –
Excellent Service
Eshika Patel –
Great value, exceptional quality!