・It can be used in explosive and corrosive atmospheres because the operating principle is pneumatic.
・Forced-balance type allows a rigid body construction with few movement in pressure element and link　mechanism. It can maintain long-term accuracy including shock resistance, linearity and hysteresis.
・Since the pressure receiving element is built into the body, it is extremely compact and zero adjustment is easily 　performed from the outside without removing the cover and affecting its span.