3: Applicable air sources: positive pressure (blowing), negative pressure (suction). 4: Maximum pressure: 1.0MPa. Positive pressure: 1.5MPa. Non hazard team, pressure. Negative: -100Kpa. 6: ElectricalLife.
eBay
BSIDE DC Laboratory Regulated Power Supply Programmable 30V/10A 40V/20A Adjustable Bench Switch
Aliexpress UK
The link options are all pressure setting working values (for example, if the air pressure of -10kpa is set to reach or exceed this setting value, the switch will start working). 3: Applicable air source: positive pressure (blowing), negative pressure (inhalation).
eBay
Vacuum Extension Tube Set Adjustable Locking Extension Pipe Handle Set For Miele C1 C2 C3 Vacuum
Aliexpress UK
The link options are all pressure setting working values (for example, if the air pressure of -10kpa is set to reach or exceed this setting value, the switch will start working). 3: Applicable air source: positive pressure (blowing), negative pressure (inhalation).
eBay
Factory Outlet Pressure Switch Digital Display Pressure Gauge High Precision Vacuum Pressure
Aliexpress UK
3: Applicable air sources: positive pressure (blowing), negative pressure (suction). 4: Maximum pressure: 1.0MPa. Positive pressure: 1.5MPa. Non hazard team, pressure. Negative: -100Kpa. 6: ElectricalLife.
eBay
DP101 DP102 Digital Pressure Sensor 2-Way NPN PNP Output Vacuum Pressure Switch Manometer DP001
Aliexpress UK
Turning the screw clockwise decreases the amount of vacuum. Turning the screw counter clockwise increase the amount of vacuum. Adjustable between -200 to -900 mbar. Brass body. 15/16" (24mm) Spanner size.
eBay
Digital pressure gauge ISE30A intelligent digital display controller ZSE30A vacuum pressure switch
Aliexpress UK
Turning the screw clockwise decreases the amount of vacuum. Turning the screw counter clockwise increase the amount of vacuum. Adjustable Vacuum Switch with Protective Rubber Boot. Adjustable between -200 to -900 mbar.
eBay
Vacuum Digital Display Pressure Switch High Precision Pressure Gauge Positive and Negative Pressure
Aliexpress UK
The link options are all pressure setting working values (for example, if the air pressure of -10kpa is set to reach or exceed this setting value, the switch will start working). 3: Applicable air source: positive pressure (blowing), negative pressure (inhalation).
eBay
Digital pressure switch vacuum negative pressure gauge ISE/ZSE30A high-precision controller
Aliexpress UK
The link options are all pressure setting working values (for example, if the air pressure of -10kpa is set to reach or exceed this setting value, the switch will start working). 3: Applicable air source: positive pressure (blowing), negative pressure (inhalation).
eBay
Air Conditioner plus Safety Liquid Valve R410 Refrigerant Vacuum Maintenance Switch R22 Detection
Aliexpress UK