Accurate and easy to use. Great for measuring PSI, inH2O, bar, mbar, kPa, inHg, mmHg, ozin2, FtH2O, cmH2O, kgcm2. Professionals such as mechanics or HVAC techs can also rely on this air pressure meter.
The LCD display is large and easy to read. It's even got a backlight. It came with a 9V battery.
It's great that it came with a carrying pouch.
FIXKIT provided a discounted unit for review.
The Dwyer Mark II 25 inclined differential manometer with red gauge fluid has a 0 to 3 inH2O measuring range, built in zero level and molded plastic case for monitoring air velocity and air filter performance and taking pressure measurements above and below atmospheric pressure. Red gauge fluid is freeze-proof and has lower evaporation rate for use in cold environments, and produces expanded scale viewing for improved reading resolution. The built-in zero level provides linear calibration. The manometer has a styrene-acrylonitrile housing, indicating tube, and fluid wells for strength and durability. The molded ABS knobs and zero adjust plunger and shock-mounted glass level vial are wear-resistant. Leakproof O-ring seals and overflow tank reduce the risk of fluid loss. Scales are lithograph printed on aluminum to ease reading and are epoxy coated to protect against wear. The manometer can be mounted on any vertical surface.
The SDMN5 is a portable, rugged dual-port manometer designed especially for HVAC/R field service technicians. Measures gas pressure, static pressure and pressure differential. The SDMN5 includes a zero adjust button of the face of the meter, a rugged rubber boot, a magnet on the back for hanging the meter during service, and the Auto Power-Off (APO) function conserves battery life. The SDMN5 measures pressure between -60inWC and 60inWC (Inches of water column) and -150.0 to 150.0 mBar. The SDMN5 also measures P1 or P2 pressure readings and calculates the difference between P1 and P2. Take static pressure measurements using the resolution mode of 0.01inWC or 0.01mBar. Includes 3/16” to 5/16” adapter for measuring gas inlet and outlet pressures.
- Dual input measures up to 40 Inch of water gauge. NOTE .001wg resolution below 9.999 Inch. Ruggedized with sturdy metal fittings
- Scales include Added Pascal's as a measurement scale, Wag, mbar and PSI. Dynamic Min/Max that can be reset at any time
- Data hold, Auto power-off and Back-lit display
- Three year limited warranty
Great piece of equipment, comes with a leather carry case (I don't use because i need a case i can store my hoses, pitot tubes, etc.) a certificate of calibration with the individual specs on it and the testers mark of approval, the magnet on the back is also better than what some reviewers said, so far it hasn't jumped off anything yet and i don't worry about it doing that either. all in all its smaller, more accurate and prettier than most all the competition and that's how i could justify the price, i was weary at first because i was unsure if it did negative pressures but it does (left side does positive and right does negative) if you want something in your tool bag that won't add more weight to an already overweight object I would recommend this.
The Extech HD755 Differential Pressure Manometer- 0.5PSI has a ±0.5 psi range and eleven selectable units of measure. It shows the max, min, avg. recordings and the relative time stamp. The functions included are data hold, auto power off and the zero function. It has a large LCD display with backlighting to help the user see in low lit areas. Also, this meter has a heavy-duty, double molded housing and a built-in USB port. The Extech HD700 Differential 0.5 PSI Pressure Manometer comes complete with one 9V battery, the Windows compatible software with the hookup USB cable, an AC adaptor, a connection hose, a built-in stand and a hard carrying case. Incorporated in 1970, Extech Instruments is based in Waltham, Massachusetts USA, just west of Boston.
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