Dual Tube Connectors. On the top of the differential pressure gauge there are two ports, one for testing positive pressure and the other for testing negative pressure. Easy to use and accurate with a large display.
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0-200 PSI Pressure Gauge 2- 1/2" Pressure Gauge Water Pressure Test Pressure Gauge 3/4" Female Hose Thread with Red Pointer
Aliexpress UK
Zero Setting yes. Material Aluminum Alloy. Power 1 x 1.5 V LR44 Button Cell Battery (Included). Flat Back or Lug Back Option Included ：.
eBay
DTI Digital Dial Indicator 0.01mm Digital Probe Indicator Test Gauge Range 0-25.4mm/1'' Electronic Indicator Gauge Tool
Aliexpress UK
(MULTIPLE UNIT SWITCHING. 41.3 bar). 3) The limit pressure is 10 Mpa (100 bar). Vacuum test range :-101Kpa~0Kpa. Vacuum test resolution : 1Kpa. COLOR DIGITAL DISPLAY. Pressure test resolution :1Kpa. 2) Pressure testing ranges from -101 Kpa to 6 Mpa (-1.01 bar to 60 bar).
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MG-8 bridge cam welding gauge stainless steel cam type gauge Welding Gauge Test Ulnar Welder Inspection gauge
Aliexpress UK
1x Digital Dial Gauge. Material: Aluminum Alloy. Digital display: 0.01 mm / 0.0005 ". Digital display: 0 ~ 25.4 mm / 1 ". Large screen, read it very clearly. The response speed: ≦ 0.5 m / s. Portable, very comfortable to carry out.
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12.7mm/25.4mm Digital depth gauge electronic depth gauge depth dial indicator, micrometer depth gauge 0-30mm round tip probe
Aliexpress UK
AUTOOL PT630 It is designed for gasoline engine systems. It features anti-corrosion materials to ensure long lasting using life. 1x AUTOOL PT630 Oil Pressure Tester. Why AUTOOL PT630 Oil Pressure Gauge？.
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Testo 549/550s Digital Manifold Gauge Refrigeration Air Pressure Gauge For Refrigerant Manifold Gauge Set 2PCS Clamp Probes Tool
Aliexpress UK
Differential pressure mode. Accuracy: ±0.3%FSO (at 25℃ ). Product size: 164 70 32 mm. Reading LCD display. 12 pressure units. Storage temperature range:-10~60℃. 2 x Tube Connecter. Over Range Indicator : Err 0.
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Shahe Dial Test Indicator 0.002 mm Shockproof Dial Indicator Gauge With Ruby Probe Dial Test Indicator Gauge Measure Gauge Tool
Aliexpress UK
Probe thread type: M2.5. With the portable port & removable rear cover. Digital Display Dial Indicator 0-12.7mm,0-25.4mm. The tool can check the tolerance level when inspecting process of machine part.
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Pressure Gauge Water Pressure Test Gauge TS-60-200 PSI Water Pump Pressure Gauge for Hose Faucet Garden Hose
Aliexpress UK
Leak Test of Refrigeration System. Refrigeration Digital Manifold Gauge HVAC Vacuum Pressure Temperature Tester. The pressure of the low-pressure pipe and high-pressure pipe can be tested in refrigeration system.
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Digital Force Gauge with Load Cell Sensor,Test Force Weight Pressure Push Pull Gauge Dynamometer,Peak/Track Mode ± 0.5%F.S
Aliexpress UK