Key Features
📐 Three Selectable Pressure Ranges
Choose between ±2.999 psi, ±7.57 psi, or ±12.99 psi depending on your model variant (QX1201 / QX1205 / QX1208). This flexibility lets you match the meter to your specific application—whether you're measuring low-pressure HVAC systems or higher-pressure gas lines.
🎯 12 Pressure Units with High Resolution
Read pressure in kPa, psi, kg/cm², oz/in², bar, mbar, Pa, inHg, mmHg, inH₂O, ftH₂O, and cmH₂O. The QX1201 offers resolutions as fine as 0.001 psi and 0.01 inH₂O—so you get precise, usable data every time.
🔴 Dual-Port Differential Measurement
Connect tubes to both the (+) and (-) ports to measure differential pressure between two points. Perfect for filter pressure drops, duct static pressure checks, or any application where the difference between two readings matters more than absolute values.
💾 100-Point Data Storage with Recall
Need to record readings in the field? Press the "C/F" button to store up to 100 data points. Use the DIF and MAX buttons to browse stored readings—ideal for inspection reports or comparing measurements across multiple locations.
📊 MAX / MIN / DIF Measuring Modes
Quickly capture the highest and lowest pressures during a test cycle with MAX/MIN mode. The DIF mode calculates the difference between two stored readings, saving you from mental arithmetic on the job.
🔦 Backlit LCD with Data Hold
The large LCD display shows pressure readings, temperature, and active units clearly. Press HOLD to freeze the current reading—essential when you're in a tight spot and can't look at the screen while taking the measurement. The backlight makes it usable in dim plant rooms or dark equipment cabinets.
🔋 Auto Power-Off & Low Battery Warning
The meter automatically shuts down after 15 minutes of inactivity to preserve battery life. When the low power symbol appears on the display, it's time to replace the 9V battery—no sudden failures in the middle of a job.
⚠️ Over-Range Indication
If the input pressure exceeds the maximum range, the display shows "Err 0". If it falls below the minimum range, you'll see "Err 1". This clear feedback prevents misinterpretation of out-of-range readings.
Product Parameters
| Parameter | QX1201 Specification |
|---|---|
| Pressure Ranges | ±2.999 psi / ±7.57 psi / ±12.99 psi (model dependent) |
| Resolution (psi) | 0.001 psi |
| Resolution (inH₂O) | 0.01 inH₂O |
| Resolution (Pa) | 1 Pa |
| Units Supported | kPa, psi, kg/cm², oz/in², bar, mbar, Pa, inHg, mmHg, inH₂O, ftH₂O, cmH₂O |
| Display | LCD with backlight |
| Data Storage | 100 readings |
| Measuring Modes | MAX, MIN, DIF (differential) |
| Data Hold | Yes – freeze readings on screen |
| Auto Power-Off | After 15 minutes of inactivity |
| Over-Range Indication | Err 0 (above max) / Err 1 (below min) |
Why Choose This Differential Pressure Gauge?
✅ Solves Real-World Problems
🔧 For HVAC Technicians – Quickly check filter pressure drops, duct static pressures, and fan system balances. The dual-port design lets you measure differential pressure across filters or coils without needing two separate gauges. When a filter is clogged, the pressure difference tells you immediately—no guesswork, no call-backs.
🏭 For Gas System Maintenance – Whether you're testing gas pressure regulators, checking supply lines, or troubleshooting combustion systems, the 12-unit flexibility means you can work in the units your system uses. No manual conversions, no calculation errors.
📋 For Facility Inspectors – Store up to 100 readings during a walk-through inspection, then recall them back at your desk for report writing. The MAX/MIN mode captures peak pressures automatically—perfect for spotting intermittent issues that might otherwise be missed.
🔬 For Calibration & Testing Labs – The fine resolution (0.001 psi) and multiple range options make this suitable for verifying other instruments or conducting precise gas pressure measurements in controlled environments.
✅ Designed for Accuracy and Convenience
The dual-port differential design is what sets this manometer apart from basic single-port pressure gauges. Instead of taking two separate measurements and calculating the difference manually, you connect both pressure sources and read the differential directly. This eliminates calculation errors and saves valuable time on site.
The 100-point data storage is another practical feature that professionals appreciate. You can take readings across multiple test points, store them, and review them later without needing to write everything down in the moment. When combined with the recall function using the DIF and MAX buttons, it becomes a powerful tool for documentation and quality assurance.
The over-range indicators (Err 0 / Err 1) provide immediate feedback when a pressure exceeds the meter's capability, protecting the instrument from damage and preventing you from misinterpreting an out-of-range reading as a valid measurement.
Package Includes
