3-1/2" Air-Water Gauge, 0-300 PSI (UL & FM Approved)

The Trerice SGXD300-C is a 3-1/2" dial size sprinkler pressure gauge engineered for demanding fire protection applications. This dual-service gauge is designed for use on both air and water pressure systems, making it a versatile choice for wet-pipe and dry-pipe sprinkler systems. The gauge features a black polycarbonate case and window, an aluminum white-background dial with black and red graduations, and a lower 1/4" NPT male connection. Wetted parts consist of a bronze Bourdon tube and brass socket for excellent corrosion resistance. The gauge meets ASME B40.100 Grade B accuracy (3-2-3%) and includes a zero zone on the dial for easy identification of system status. UL-listed (UL-393, US & Canada) and FM Approved (Approval Standard 2311), this gauge is the industry-standard choice for sprinkler system monitoring and inspection.

• UL-listed (UL-393, US & Canada) and FM Approved (Standard 2311)
• Dual air/water service - compatible with wet and dry-pipe sprinkler systems
• 3-1/2" dial with white aluminum face, black and red graduations
• 0-300 PSI / 0-2000 kPa dual scale for versatile measurement
• 3-2-3% accuracy per ASME B40.100 Grade B
• 1/4" NPT lower male connection
• Black polycarbonate case and window
• Bronze Bourdon tube with brass socket wetted parts
• Zero zone indicator on dial
• Maximum operating temperature: 150F (65C)