Most manometers display to 0.01 mbar / 1 Pa resolution which is adequate for many HVAC applications, however, modern high efficiency boilers have air/gas ratio valves which must be accurately set at very low differential pressures - typically between 0.00 and -0.05 mbar. The pressure also pulsates which makes it impossible to measure with a standard electronic manometer. The Kane 3500 micro-manometer solves these problems. At low pressures it reads to 0.001 mbar, is accurate to +/-0.005 mbar, - significantly better than any standard manometer - and has a smoothing mode to damp out pulsing. These features also make it ideal for flue draught measurement. 

• 3 versions available KANE3500-1 +/- 1 psi / 80 mbar KANE3500-2 +/- 2 psi / 160 mbar KANE3500-5 +/- 5 psi / 400 mbar
• Resolution to 0.1 pascal / 0.001 mbar on the KANE3500-1
• Ideal for HVAC service engineers
• Switchable between high and low resolution.
• Switchable between: mbar, Pa, hPa, kPa, mmHg, mmH2O, inH2O and PSI
• Auto and manual zeroing
• Data hold and max/min recording
• Printouts include date/time and user details
• Supplied with 1m of tubing, protective pouch, battery and instructions