10 best compression meters

The compression gauge is designed to test diesel power units, so its scale has an increased range of 0-40 atm. Recommended for Volvo, VAG, MB, etc. A dummy injector is included in the kit, since diesel engines do not have spark plugs, and compression is measured through the fuel injector socket. It is usually much lower than the intake manifold, so the manufacturer provides a 33 cm hose to make it easier to access. You can perform the check yourself, because the compression gauge is equipped with a shut-off valve. Everything is placed in a plastic case with a latch for careful storage. High stiffening ribs on the side walls of the pressure gauge reliably protect it from impacts. Judging by the reviews, the readings of the device are very accurate. A 5-year warranty gives you confidence in the reliability of the product.

If you practice car repair in your garage, pay attention to the professional compression tester from the AV Steel brand. The device comes in a plastic case with securely placed elements. The kit includes a flexible hose 33 cm and a steel tube with a clamping tip, as well as an adapter for M14 and M18 threads. All connections are quick-detachable, which saves time when changing equipment. The pressure gauge has two scales in kgf / cm² and psi, and the relief valve, adapters and tips are made of bronze, which prolongs their life with regular use. But the case of the device is thin, so after measuring it is advisable to put the compression gauge immediately into the case. Since the 1.5 mm thread pitch does not fit all candle wells, you will need to purchase thread adapters with a 1.25 mm thread pitch.

The manufacturer recommends a compression tester for GAZ vehicles with ZMZ engines, since its proportions are ideally designed for 15 cm deep candle wells. But from the reviews it can be seen that it is applicable to the engines of most cars, for example: Opel Astra, Renault Logan, VAZ and boat ICEs. Comes with two clamping rubber caps. The compressor works even at an ambient temperature of -60 ⁰С. Drivers compared the results of measurements with more expensive models - the readings are the same. But it is important to hold the instrument exactly at right angles to the cylinder. The color scale with a green and red field on a white background helps to distinguish the values ​​even in low light. Although the model is not expensive, the manufacturer issues a 2-year warranty on it.

The threaded compression gauge from the Taiwanese company Auto Tools comes in a blister. The pressure gauge has a color scale with a red and green zone, which helps to visually see if the compression in the engine is normal or repair is required.The strong case with stiffening ribs well protects the fragile internal mechanism from blows. Includes steel tube 13 cm for installation in the internal combustion engine. So that it does not slip in the hands, the manufacturer has provided notches. M14 thread is suitable for most foreign car engines. There is a rubber clamping tip for diagnosing internal combustion engines of scooters, lawn mowers, walk-behind tractors, etc. A shut-off valve will allow you to perform the procedure alone. For the price, this is the best option if you need a compression gauge once a year.

The manufacturer AFFIX offers one of the most affordable compression gauge kits with tips for gasoline engines. The kit includes curved and straight steel tubes, 4 M10-M18 threaded adapters and a 46 cm long flexible hose. Most competitors have a 33 cm hose. head into the engine compartment. Everything comes in a case with cells for each element. Clamping tips expand the possibilities of use on rare types of internal combustion engines.But the case of the pressure gauge itself is thinner than that of competitors, so it should be handled carefully in the garage.

The compression tester is supplied in a plastic case, where each element has its own cell. This prevents mixing of the accessories during transport. The device is suitable for gasoline engines of any power, since the scale limit is 21 atm. There are straight and curved pressure tubes, as well as a flexible hose for access to awkward places. All connections are quick-detachable. The manufacturer did not stint on adapters - there are 4 of them with a thread diameter of 10, 12, 14 and 18 mm. The owner will be able to measure the compression on any motor, whether it is a moped, motorcycle, gasoline trimmer, generator or car. Reviews show that if the battery is good, the compression gauge accurately shows the pressure and does not change the values ​​​​when the cylinders are re-measured.

The model is designed for all types of gasoline engines, as it has a scale range from 0 to 20 bar. The pressure gauge is protected by a rubberized housing and withstands shock well. Indications in three units of measurement are easy to read even in low light. The kit includes an adapter for 14 and 18 mm threads, as well as a 33 cm flexible hose. A 20 cm long steel tube is also supplied, which is suitable for the deepest wells. At the end of the rod there is a clamping tip that expands the scope of use of the device. The threaded compression gauge comes in a durable plastic case with two latches to help keep it tidy in the garage. Inside there are two foam pads, but only the pressure gauge is fixed, the tubes and adapters hang out during transportation.

Model JONNESWAY AR020018 is supplied in a blister pack and has a 32.5 cm long flexible hose. This allows you to get to the most inaccessible places on engines with a complex exhaust manifold shape. There are adapters for threads with a diameter of 14 and 18 mm. The measurement can be fixed by any of the three units on the scale. Increased accuracy of readings is facilitated by additional markup between integers.The pressure relief valve works very gently and does not press the finger. During the measurement of compression, nothing is poisoning anywhere. But storing a fragile pressure gauge in the garage without a case is inconvenient. The absence of clamping rubber tips narrows the list of motors to which the compression gauge is suitable (pressure cannot be measured on motorcycles and scooters).

Compressometer of domestic assembly is designed for gasoline engines of any car model. The scale has two designations in MPa and kgf / cm² - everyone can use the one they are used to.The maximum indicator of 16 kgf / cm² allows the device to be used even on SUVs, since most of them have a compression limit in the cylinders of gasoline engines of 14-15 atm. The non-return valve closes the inlet, so an assistant is not needed for the operation - you can set the pressure gauge yourself, turn the ignition key in the lock and come up to take readings. The device has a durable steel case with anti-slip relief. The surface is easy to wash if it gets dirty with oil. This model only comes with 14mm threads - all other motors will require a rubber cone. In the reviews, buyers are satisfied with the reliability of the compression gauge, but they complain that on Logan with 8 valves it does not completely twist into the first cylinder - the relief valve interferes. Affordable price and good quality make the product the most popular.