This is a product for business contractors.

Small and lightweight, it fits in the palm of your hand.
Positive pressure, negative pressure, and differential pressure can be measured.
Can be switched between 4 units.
The magnet on the back can be fixed to a wall or other surface.
Traceability and calibration certificates can be issued.

Specifications

Specifications: Certificate of Authenticity included
Display Pressure: Gauge Pressure
Measurement range: -199.9 hPa to +199.9 hPa
Resolution: 0.01 hPa, -19.99 hPa, -19.99 hPa, -199.9 hPa, -20.0 hPa, +20.0 hPa, +199.9 hPa
Accuracy: F.S±1%
Maximum Allowable Pressure: 500 hPa
Unit: hPa, kPa, mmH2O, mmHg
Pressure connection: hose joint
Sensor: Piezo resistor semiconductor sensor
Operating Temperature: 32°F - 104°F (0°C - 40°C)
Storage Temperature: -4°F to 140°F (-20°C to 60°C).
Power supply: 2 x AA alkaline batteries (test included)
External dimensions: W2.5 x H3.7 x D1.1 inches (W64 x H95 x D28 mm) (exclud
Weight: 5.0 oz (145 g) (including batteries)
Accessories: AA alkaline batteries x 2, different diameter connectors x 2, hose (3.3 ft (1 m) x 2.
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This product comes with a certificate of authentication is an original Azwan service that will be calibrated at the time of shipment and issued a certificate of authenticity.
This product is general calibration. It comes with a certificate of calibration (calibration certificate, inspection certificate, and traceability system).
Includes 3-piece Japanese document set and English documents.