The differential manometer can be used to measure air-conditioning and ventilation system or verify in the site, and clean room or any corrective maintenance of gas pressure system. It is a indispensable measuring apparatus to heating and ventilation air-conditioning for technicians, operating maintenance engineers, and scientific researchers for its simply operation and distinct reading.

Features:
Test the differential pressure/positive pressure/negative pressure of areas and pipes.
LCD display with backlight for easy reading.
Max./Min./Average value measurement function.
11 selections of measuring unit: kPa, psi, kgcm2, ozin2, bar, mbar, inHg, mmHg, inH2O, ftH2O, cmH2O.
Low Ba-tte-ry indication, calibration, zero adjustment, record model and data hold function.
Compact size and light weight, easy to operate and carry.
It can be used to measure air-conditioning and ventilation system or verify in the site, and clean room or any corrective maintenance of gas pressure system.
It is a indispensable measuring apparatus to heating and ventilation air-conditioning for technicians, operating maintenance engineers, and scientific researchers for its simply operation and distinct reading.

Specifications:
Material: ABS plastic
InH2O Range: ±55.40, resolution: 0.01
Psi Range: ±2.000, resolution: 0.001
Mbar Range: ±137.8, resolution: 0.1
Kpa Range: ±13.79, resolution: 0.01
InHg Range: ±4.072, resolution: 0.001
MmHg Range: ±103.4, resolution: 0.1
Ozin2 Range: ±32.00, resolution: 0.01
FtH2O Range: ±4.612, resolution: 0.001
CmH2O Range: ±140.6, resolution: 0.1
Kgcm2 Range: ±0.140, resolution: 0.001
Bar Range: ±0.137, resolution: 0.001
Range of Measurement: ±13.79kPa
Accuracy: ±0.3%FS
Repeatability: ±0.2%FS
Linearity/Hysteresis: ±0.1%FS
Max. Limit of Pressure: 30kPa
Outrange Warning: Err1 or Err2
Pressure Connection: One 1/8" (3.18mm) quick coupling
Operating Temperature: 0~40°C(10%~80%RH)
Storage Temperature: -10~60°C(10%~70%RH)
pow-er sup-ply: 3 * 1.5V AAA Ba-tte-ry (NOT included)
Item Size: Approx. 137 * 64 * 27mm / 5.40 * 2.52 * 1.07in
Item Weight: Approx. 128g / 4.52oz
Package Weight: Approx. 245g / 12.18oz
Package Size: Approx. 23.3 * 18 * 5.5cm / 9.18 * 7.09 * 2.17in