# Nilight 50246H Digital Engine Compression Tester Kit, 0–250 PSI

A backlit 0–250 PSI digital gauge helps check compression in gasoline engines across motorcycles, cars, and trucks.

- [Original product page](https://www.ofertitastop.com/us/product/nilight-50246h-digital-engine-compression-tester)
- [View offer](https://www.ofertitastop.com/us/visit/nilight-50246h-digital-engine-compression-tester)
- Market: US
- Language: en-US
- Currency: USD
- Product updated: 2026-10-31T02:51:51.238Z
- Brand: Nilight
- Model: 50246H
- MPN: 50246H
- EAN / GTIN: 840323922944
- SKU: ofertitastop-us-174422
- Category: Hardware > Tools > Measuring Tools & Sensors > Gauges
- Source store: amazon US
- Active deal: Yes
- Price: 21.68 USD
- Previous price: 24.99 USD
- Discount: 13%
- Rating: 4.4 / 5
- Reviews: 103

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## Description

Choosing a compression tester often comes down to how easily you can read results and whether the fittings suit the engine you’re working on. The Nilight 50246H combines a digital, backlit display with four adapters and a flexible hose assembly for checking compression in gasoline engines across motorcycles, cars, and trucks.

Its 0–250 PSI range and readings in both PSI and Bar make it useful for engine diagnostics at home or in a workshop. A carrying case keeps the kit together between jobs.

## Benefits

A clear digital reading helps you focus on the compression check rather than interpreting a gauge face. The display is 2.8 inches, backlit, and reads in 0.1 PSI increments, giving you a direct view of the measurement in dimmer work areas. You can select PSI or Bar to suit the unit you use for recording and comparing readings.

The kit is intended to help diagnose concerns involving pistons and rings. Its flexible 16-inch hose and quick coupler make it easier to position the gauge at the engine fitting, while four adapters cover standard and specialty fittings. That combination is useful when working across different gasoline-powered vehicles rather than keeping a tester for just one fitting style.

A side bleeder valve lets you repeat a test without disconnecting the hose. For a practical diagnostic session, you can keep the gauge connected while taking repeated readings, then use the results as part of your assessment of the engine.

## Key features

The digital gauge measures from 0 to 250 PSI and displays readings in PSI and Bar, with 0.1 PSI resolution. Its backlit screen supports reading the measurement in a range of workshop lighting conditions. The gauge assembly includes a flexible 16-inch hose and quick coupler, and the kit provides four adapters for standard and specialty fittings.

The stated applications include gasoline engines in motorcycles, cars, and trucks. In use, select an adapter that matches the engine fitting, connect the hose, and read the compression value on the display. This is a focused engine-testing tool, rather than a general-purpose diagnostic device, it suits buyers looking specifically to check cylinder compression. Customers have also described the readings as accurate, and some mention using the tester on a boat motor. Those comments reflect individual experiences, not a guarantee of results for every engine.

## Care & maintenance

The gauge uses acrylic glass with an anti-scratch coating and a rubber protective cover designed to absorb shock. Rust and corrosion inhibitors are part of its treatment. After a job, return the components to the carrying case for organized storage and easier transport between work areas. Keeping the adapters and hose together also makes it simpler to have the kit ready for the next compression check.

## Should you buy it?

Worth considering if you want a digital compression tester for gasoline-engine checks and value a backlit display, PSI and Bar readings, and a fitting set for a range of applications. Compared with choosing a basic analog gauge, this kit’s digital readout and 0.1 PSI resolution offer a more direct way to view the measurement. The flexible hose, quick coupler, repeat-test bleeder, and carrying case add practical touches for DIY diagnostics and mechanic work. For checking compression across motorcycles, cars, or trucks, the Nilight 50246H brings the gauge and its adapters together in a portable kit.

## Images

![Nilight 50246H Digital Engine Compression Tester Kit, 0–250 PSI — 1](https://www.ofertitastop.com/i/hkkOnxFm7Vez0ShEnSbvNt4exStXplyz_Kx33CxNNnPKp4u-xyt-yJR0jicaGZc1O9oJto-qJ5JMHZMgDfeEN4kZctWSPBCJ7hsupLF6GPr1DH2rIVuOqD0iVA.jpg)

![Nilight 50246H Digital Engine Compression Tester Kit, 0–250 PSI — 2](https://www.ofertitastop.com/i/oBlkI-DAwuygPJUTLDxJceyFvf6llZVptZE_8cFKeJ2ELEtAaYI02VaI7H6yzUHsz735rR86az8AsHQh9X1TxZ0tV48uvmz4VVkcttNKJok9qG6y5TCbPzmedw.jpg)

![Nilight 50246H Digital Engine Compression Tester Kit, 0–250 PSI — 3](https://www.ofertitastop.com/i/xj5jNT38Zhn61Bw_foAJIkCSsjxBPQuQzt8NLZbA6_BxvDuwW_ZjiuBU_HOwY7o7nhoh3vykrrLdWhuv_npDjxENCuWkCQUPP1U0OEPBACuDlh__2scaVbqoLQ.jpg)

![Nilight 50246H Digital Engine Compression Tester Kit, 0–250 PSI — 4](https://www.ofertitastop.com/i/v7JTvPsGH71KPDcBpQQ17gtdkOuckGwhJ5r1A5UJKXZl1DjAaiZ2N_0dJWOd_BZ0F9dkKuqanUtHEPLzdY7e6UdQbJt3ysLAmam3Mu6JpJzRJqr46KjPqcOp6w.jpg)

![Nilight 50246H Digital Engine Compression Tester Kit, 0–250 PSI — 5](https://www.ofertitastop.com/i/4RGQgCW4Wcz_1lUmpcFRFfv3aJWZwOcDsconftg9QdpxF-tpFmHxeFkqIMcG_Jm1naD-DBzONkomxDrMsjApMgEhuIGZ0fFQG5H0gGw72BY-0k49D4De0SyArg.jpg)