• 0-50 psid and 0-200 psid
• 1/4" male NPT (2 of each range)
• Wireless sensors
• Rugged weatherproof handheld housing withstands 1.5 meter drop test
• Share logged data directly from handheld over Wi-Fi, GSM or CDMA networks

Series 490W Wireless Hydronic Differential Pressure Manometer is the most accurate and easy to operate manometer on the market. By using wireless transducers and a versatile handheld, a single operator can monitor and balance a hydronic system in less time than traditional hydronic balancers. The Series 490W utilizes mobile technology to communicate via a Bluetooth connection with the transducers to monitor differential pressure and flow on up to three different valves. Being wireless means there are no hoses to carry, snag on equipment or need to be drained. The 490W includes the Dwyer Hydronic Application Software that contains valve charts for numerous manufacturers, which converts differential pressure to flow directly on the screen.

Feature Outline

• Refrigerant pressure testing
• Hydronic valve balancing
• Measure pressure drop across pumps
• Measure pressure drop across chiller and coils for freeze protection