Note:This resolve to 0.01 of an inch of H2O

Technical parameters:
Accuracy: ±0.3%FS
Measuring range: ±2000pa
Linear/magnetic hysteresis: ±0.1%FS(full range)
Pressure range: 2Psi
Repeatability: ±0.25%FS
Pressure connection: two 1/8 "(3.18mm) quick fitting
Working temperature: 0 ~ 40℃
Storage temperature:- 10~60℃
Outrange hint: ERR1 or ERR2
Power supply: 9V battery

Package included:
1x Gauge
1x 9V Battery
2x Plastic tube (soft)
2x Plastic hose (hard)
1x Pressure connector
1x Cloth bag
1x User manual