Best Marshall Instruments in 2026

1.5" Fuel Pressure Gauge, 0-100 PSI

Stainless Steel Case and Bezel

Black Dial, Red Pointer, Liquid Silicone Filled

1.5" Fuel Pressure Gauge, 0-100 PSI, 1/8" NPT center back connection

Black Dial, Red Pointer, Liquid Filled, Black Case and Bezel

Satisfaction Guaranteed: We take care of all issues with a replacement or refund within 12 months.

1.5" Fuel Pressure Gauge, 0-15 PSI, 1/8" NPT center back connection

Silver Dial, Red Pointer, Liquid Filled, Stainless Steel Case and Bezel

Easy-Vent Nipple Plug for accurate readings every time. Install gauge so that the nipple plug is in the upright position, then cut the nipple to vent gauge.

1.5" Nitrous Pressure Gauge, 0-1500 PSI

White Dial, Red Pointer, Liquid Filled

Stainless Steel Case and Bezel

Green Backlit LCD display and flashlight for visibility in dimly light areas, easy-to-read digits help you easily measure your vehicle's tire pressure

Heavy Duty Stainless Steel Made And RV/Truck Special Designed to maintain correct tire pressure, reduce tire wear and extend tire life; Digital display reading instantly and clearly being shown

Nozzle easily forms a seal with the valve stem giving quick and accurate readings in 0.1 increments; 4 settings with longer range: 0-230 PSI / 0-16 Bar / 0-16 Kg/cm2 / 0-1585 Kpa

Upgraded Power Supply - Replaceable AAA Battery: Instead of 4 coin cell batteries, 2 AAA batteries are included with this tire pressure gauge. It's easy for anyone to replace with spare batteries, and AAA batteries can last longer than coin cell batteries! Stocking stuffers for men and women.

Nozzle easily forms a seal with the valve stem on schrader valves, giving quick and accurate readings in 0.1 increments; 4 settings with range: 4-150PSI / 0-10Bar / 0-10Kgf/cm² or 0-1000KPA

Simply press "ON/UNIT/OFF" button to turn on the tool, select the range, and automatically shut off in 30-40 seconds to save the power; Non-slip texture makes it easy to hold onto and the ergonomic design is both suitable for men and women's hands

▲Check out our VIDEO on the left side and take a quick tour of AstroAI tire gauge! Backlit LCD display and Lighted nozzle for visibility in dimly light areas, stocking stuffers for men and women

Designed to maintain correct tire pressure, reduce tire wear and extend tire life; Digital display reading instantly and clearly being shown, no longer do the guesswork of analog gauges

Nozzle easily forms a seal with the valve stem on schrader valves, giving quick and accurate readings in 0.1 increments; 4 settings with range: 0-150PSI / 0-10Bar / 0-10Kgf/cm² or 0-1000KPA

5'' Diameter 0-100 PSI Liquid Filled Includes integral pressure relief valve

Includes integral pressure relief valve

Liquid filled

Checking Compression On Petrol Engine Quickly And Accurately

Easy Pressure Release Button On Side Of Tester

Completed Kit Comes With Adapters For Most Applications

For meausring fuel pressure

1-1/2" dial size, 1/8"NPT center back

Pressure range: 0-60psi single scale, black dial

1.5" Fuel Pressure Gauge, 0-100 PSI

Stainless Steel Case and Bezel

Black Dial, Red Pointer, Liquid Silicone Filled

1.5" Fuel/Oil/Water Pressure Gauge, 0-100 PSI

Direct Mount with 1/8" NPT Center Back Connection

Black Dial, White Pointer, Black Case and Bezel

GlowShift 3/8” Fuel Line Fuel Pressure Barbed Push Lock T-Fitting Adapter Allows Users to Install a Fuel Pressure Sensor to a 3/8" Inner Diameter Fuel Line

Features 3/8" (9.5mm I.D) Barbed Push Lock Fittings, 1/8-27 NPT Port for Fuel Pressure Gauge Sensor & 2 Hose Clamps

Manufactured from 304 Stainless Steel that Prevents Corrosion

【Product Name】Stainless Steel Liquid Filled Pressure Gauge Wog

【Size】1/4''NPT；2.5" DIAL FACE

【Installation method】Lower Mount

For meausring fuel pressureFor meausring fuel pressure, automotive air line pressure or automotive sensor transmission, T-Fitting adapter allows users to install in the fuel line

Size: 1-1/2" dial size, center back, 8mm (5/16") Brass Barbed T-Fitting Adapter, 2 Stainless Steel Clamp with handle

Pressure Range: 0-15psi single scale

Dual Dial For Accurate Reading, With A 140 PSI /10 Bar Scale

Deluxe Manometer Fuel Injection Pressure Tester Gauge Kit

Set comes in a specially designed molded case to make storage easy and organized.

Wide Application: Fuel pressure gauge kit fits for most vehicles with gasoline/gas engine fuel injection system. (Does not compatible with Bosch, CIS Jetronic, TB System on GM vehicles.)

Function: The fuel pressure tester easily and quickly test the value of the fuel pump pressure flow.

Premium Material: Adapters in fuel pressure test kit constructed from high-quality brass and aluminum resist rust and corrosion, rugged and long-lasting.

For meausring fuel pressure

1-1/2" dial size, 1/8"NPT lower

Pressure range: 0-15psi single scale

HIGH PERFORMANCE LOW MAINTENANCE - She is your pride and joy. Your car is one of your partners in life. Making sure it performs at its best takes tender loving care, which means essentially checking tire pressure regularly. But going to the garage or gas station is a hassle. Highly calibrated accurate to ±1% full scale of 60 PSI range Vondior tire pressure gauge will make sure your tires are good to go! Includes a swiveling valve connector, rotating on its' axis for maximum convenience.

SAFETY FIRST - Driving your family, friends or simply carpooling is a big responsibility. Protecting your passengers means keeping your car in top condition. Properly inflated tires are safer and less likely to fail at high speeds. Over-inflated tires make for longer stopping distances and will skid longer on wet surfaces. Don’t trust on gas station pump accuracy, most of the time they are showing extreme wrong pressure. Keep tire on optimal pressure. It’s literally a life saver.

SAVE YOUR GAS MONEY AND THE ENVIRONMENT – A beneficial situation for all mankind. When tires are not properly inflated, they are less “round” and require more energy to begin moving and to maintain speed. In addition, under-inflated tires contribute to pollution and increased fuel costs. So get a Vondior gauge in order to save money and Mother Nature.

Universal Design: The included adapters, hoses and fittings cover all fuel injection systems and most Gas Engine Cars, Motorcycles, Trucks, SUVs, ATVs, UTVs, RVs. ( Does not compatible with Bosch, CIS Jetronic, TB System on GM vehicles. )

Ideal For Mechanics: Fuel Injection Pump Pressure / Oil Combustion Spraying Pressure Gauge Teste.

Durable: Designed for repeated use with high quality materials.

Accurate Measurement: Digital compression gauge has a backlit display with a resolution of 0.5PSI instead of 5PSI. Four different kinds of numerical units in PSI, KPA, Bar, KG/CM², easy to control with buttons.

Quick Release Valve Design: Fuel pressure tester with release valve design could offer single-handed operation inflation and deflation, helping to release pressure safely and recovery fuel easily.

Universal Design: The adapters, hoses and fittings included in fuel pressure gauge cover most Gas Engine Cars, Motorcycles, Trucks, SUVs, ATVs, UTVs, RVs with modern Schrader test port fuel injection systems. ( Does not compatible with Bosch, CIS Jetronic, TB System on GM vehicles. )

【Product Name】Stainless steel Liquid Filled Pressure Gauge

【Size】1/4''NPT；2.5" DIAL FACE

【Installation method】Lower Mount

For meausring fuel pressure

1-1/2" dial size, 1/8"NPT Back

Pressure range: 0-15psi single scale

【Product Name】Stainless Steel Liquid Filled Pressure Gauge Wog

【Size】1/8''NPT；1.5" DIAL FACE

【Installation method】Lower Mount

【Product Name】Stainless Steel Liquid Filled Pressure Gauge Wog

【Size】1/8''NPT；1.5" DIAL FACE

【Installation method】Lower Mount

Package Dimensions: 28.397 H x 2.387 L x 21.209 W (centimetres)

Package Weight: 0.258 kilograms

Fit type: Vehicle Specific

0 - 120 psi Pressure Range for Electronic Fuel Injection

Easy to Read High-Contrast 1½” Face

Matte Black Stainless Steel Case and Bezel

1.5" Direct Mount Pressure Gauge, 0-15 PSI, 1/8" NPT center back connection.

Use for measuring pressure on fuel, oil, water, air and other non corrosive media not exceeding 15 PSI.

Easy vent plug for accurate readings every time. Install gauge so that the nipple plug is facing up. Once installed, cut the nipple on the plug.

1.5" Fuel/Oil Pressure Gauge, Silver Dial

0-100 PSI, Silver Dial, Red Pointer

Liquid filled Stainless Steel Case and Bezel

GlowShift Tinted 7 Color Series 100 PSI Fuel Pressure Gauge is Designed to Monitor & Display the Pressure Running Through the Fuel System of Your Car or Truck

Fuel Pressure Readings from 0 to 100 PSI - 2-1/16" (52mm) Gauge with Black Dial, Tinted Lens & Illuminated Red Needle

7 Solid Color Modes & 2 Color Cycle Modes Allow You to Match Your Factory Dashboard Lights or Add a Custom Style to the Interior of Your Vehicle - Colors Include Blue, Red, Green, Teal, Purple, White & Yellow - Connecting the Dimmer Wire to the Headlight Switch Reduces Brightness of the Gauge by 30% When the Headlights are On