ELECTRONIC MANOMETER
It replaces your fragile and messy U-TUBES. Simply turn the
instrument on by pressing the power button and press and
hold the zero button for approx. 4 seconds. Connect the
provided tubing and you are immediately receiving
continuous pressure measurement from -20" to +20" water
gauge, with resolution as good as 0.05".
This affordable instrument provides a large LCD display and
comes complete with a protective rubber boot with integral
magnet, one 9V battery and tubing with fitting.