Preset your desired suction level. When activated, the preset level and gauge reading can be used to check for system leaks. The case is made of ABS plastic and houses the gauge for extra protection.

Specifications:

• Gauge Accuracy:
  Analog: ± 5 % of Max
  
  Digital Gauge: ± 1% of Full Scale
  Analog Gauge: ± 5% of MAX within ref. Indicator
• Vacuum Ports: 1/8 NPT Female
• Modes: LINE - OFF - REG
• Maximum Vacuum:
  
  PM3300: REG. Mode @ Full Vac - 396 mmHg (53 kPa)
  PM3400: Restricted to 170 mmHg (23 kPa) ± 10 mmHg (1.3 kPa)
• Weight: 1.1 lbs. (.48 kg)
• Dimensions: Length: 3.7 in. (9.4 cm), Width: 2.8 in. (7.1 cm), Height: 5.2 in. (13.2 cm)
• 3 Volt Lithium, ½ AA (Digital Vacuum Gauge Models ONLY)