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The Mengshen Digital Manometer M1890 is a professional-grade air pressure and differential pressure gauge offering ±13.79 kPa (±2 psi) measurement range with ±0.3% accuracy. Featuring a large backlit LCD, 11 selectable pressure units, and a compact, portable design, it’s an essential tool for HVAC technicians and maintenance engineers seeking reliable, on-site pressure diagnostics.










| ASIN | B01CZFCQAO |
| Batteries | 1 9V batteries required. |
| Batteries Required? | Yes |
| Batteries included? | No |
| Battery Cell Type | Alkaline |
| Best Sellers Rank | 299,864 in Automotive ( See Top 100 in Automotive ) 491 in Tyre Pressure Gauges |
| Customer Reviews | 4.1 4.1 out of 5 stars (110) |
| Date First Available | 2 Mar. 2018 |
| Item Package Quantity | 1 |
| Item Weight | 280 g |
| Item model number | M1890 |
| Manufacturer | Mengshen |
| Material | Acrylonitrile Butadiene Styrene (ABS) |
| Part number | MS-M1890 |
| Product Dimensions | 21 x 11 x 5.5 cm; 280 g |
M**H
Handy bit of kit
Purchased to take fan pressures and drop tests does the trick perfectly
A**J
Good for the money
It's comes with a neat case and spare tubes. However it doesn't interface with normal sized gas tubing as hoped so a bit of looking in the spares for adaptor put it to use for testing. The record feature is useful but does switch off ifledt too long. Overall worth buying
A**W
All good
All good
R**D
Inaccurate therefore useless
Turned out to be 20% out of calibration so its on its way back sharpish.Crap
K**Z
Good product
The pipes are to small.
D**H
Good quality tool at a good price
Brilliant product use to check aos on porsche cars
B**E
Seems accurate but have not really confirmed
Testing room pressure
G**N
Ein äußerst nützliches und perfektes Gerät.
C**N
Buon prodotto. Spedizione velocissima
C**N
une mesure sur une bouche d'aspiration de VMC n'est pas assez précise, il faudrait une échelle en Pa et non hPa mais ils sont tous pareils !!
A**R
AVOID####Mine has now stopped working displays ERR2. The whole product is cheap and nasty. Hose connection extremely small I can’t test at meter or appliance
K**S
I have used this for work and it seems to work just fine.