This link is for 1/8" BSP(=G1/8) thread only. 28mm mini digital pressure gauge.
eBay
Manometer Pressure Gauge Mini Micro 25mm/1inch Gage Compressed Air Hand Pump Diving HPA Regulator M8*1 M10*1 1/8NPT 1/8BSPP
Aliexpress UK
1 x Pressure Gauge. If you are satisfied with our service, pls. Do not modify or plug the overflow hole. Color: As picture shown. Easy to install and easy to use, make your work easier by giving you a clear reading.
eBay
M10 M8 Air Mini Micro Pressure Gauge Manometer Thread 5MPA 10MPA 20MPA 30MPA 35MPA 40MPA 300BAR 3500PSI 5000PSI 6000PSI
Aliexpress UK
Product Description A 2 metre long rubber hose for use with a U-gauge Manometer 2 metre hose Testing heating systems in conjunction with a U-gauge manometer
eBay
HT636 Manometer Digital Surface Pressure Difference Measure Wind Air Pressure Differential Pressure Gauge Meter 12 Pressure Unit
Aliexpress UK
When the pressure exceeds the set limit, the screen flashes as a visual alert. Item Type: Differential Pressure Gauge. [12 Units] With 12 commonly used pressure units and 2 wind speed units, this gauge provides versatility for users from different industries and countries.
eBay
UNI-T UT366A Manometer Digital Surface Pressure Difference Measurement Wind Speed Air Pressure Differential Pressure Gauge Meter
Aliexpress UK
Gas tightness testing and checking and setting domestic and commercial appliances to the correct gas pressures is part of every day gas work and a requirement of the Gas Safety Regulations. The Rothenberger U-Gauge Manometer has innovative features, such as velcro strips for a hanging option to keep U-Gauge at eye level for ease of reading magnetic strips on rear casing allows the U-Gauge to be supported on the boiler casing during use and a scratch resistant clear facing. This U-Gauge is to be used in conjunction with Rothenberger rubber hoses (No.67017 for natural gas No.67018 neoprene for LPG and Manometer Fluid No.67074) Standard U gauge manometer for testing of differential pressures in pipework gas systems. Produced in durable plastic casing with a clearly marked scale in milibar.
eBay
MAIRUIKESI 50mm(2") Pressure Gauge Glycerin filling 0...1...400bar/psi brass Threaded Connection Water Gas Fuel Manometers
Aliexpress UK
5 hoses, each on both sides with coupling. Petrol Engine Compression Leakage Detector Cylinder Gauge Tester Adapter Kit. Hand Held Vacuum Pump Brake Bleeder Set Bleed tester Tool Kit 2 Jars Car Bike. -Adapter hose for standard Schrader valve 7/16" x 20 UNF internal thread.
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FANDE Digital Hydraulic Pressure Gauge with Temperature Diaphragm 316L LCD Stainless Steel Gas Liquid Fuel Manometer
Aliexpress UK
And small size, convenient to carry. 1 x Water Pressure Gauge. Small size, convenient to carry. Small size, convenient to carry. Clear number markings for convenient and easy readings. Clear number markings for convenient and easy readings.
eBay
Digital Car Tire Tyre Air Pressure Gauge Meter LCD Display Manometer Barometers Tester for Car Truck Motorcycle
Aliexpress UK
1x Micro Differential Pressure Gauge. We'd like to settle any problem in a friendly manner. Because the unpaid dispute will not be closed automatically, and we may ignore it.
eBay
MAIRUIKESI Hot Seal Pressure Gauges Manometer 40mm -1-0-400bar/psi Back Connection With Flange For Air Water Fuel Oil
Aliexpress UK