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checker Product List and Ranking from 209 Manufacturers, Suppliers and Companies

Last Updated： Aggregation Period:Nov 05, 2025～Dec 02, 2025
This ranking is based on the number of page views on our site.

checker Manufacturer, Suppliers and Company Rankings

Last Updated： Aggregation Period:Nov 05, 2025～Dec 02, 2025
This ranking is based on the number of page views on our site.

  1. null/null
  2. JFEプラントエンジ Tokyo//others
  3. null/null
  4. 4 東洋精機製作所 Tokyo//Testing, Analysis and Measurement
  5. 5 ジェーディーエルエンジニアリング Kanagawa//Consumer Electronics
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checker Product ranking

Last Updated： Aggregation Period:Nov 05, 2025～Dec 02, 2025
This ranking is based on the number of page views on our site.

  1. [Poka-Yoke Example] Prevention of Half-Locking of Connectors
  2. Digital Oil Checker "Wendy" JFEプラントエンジ
  3. High-precision mass inspection machine Weight Checker DACS-GN
  4. 4 Tackiness Checker HTC-1 (Portable Tack Tester) 東洋精機製作所
  5. 5 Sewage Pipe Inspection Checker "Toru-kun" ジェーディーエルエンジニアリング

checker Product List

331～345 item / All 424 items

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Earth Checker (with fault detection function)

Earth Checker (with fault detection function)

Capable of storing insulation resistance values during normal monitoring, earth detection, and earth recovery.

This product is an "Earth Checker" that helps prevent failures by continuously monitoring the insulation resistance between the ground and the signal power and level crossing power monitoring lines. It has a built-in fault detection function that continuously monitors the integrity of the internal circuit and outputs self-failure information when an anomaly is detected. This reduces the risk of overlooking abnormalities in the line due to equipment failures. Our company conducts development design and manufacturing (prototype mass production) utilizing the technology of selecting LEDs and circuit board layout cultivated through railway signal and display devices. We can solve your problems, such as "I want an alarm like this" or "Can you make something like this with LEDs?" so please feel free to contact us. 【Features】 ■ It can store insulation resistance values during normal monitoring, ground detection, and ground recovery, and the stored data can be read using dedicated software. ■ The F-shaped relay design allows for space-saving and easy installation. *For more details, please download the PDF or feel free to contact us.

  • Other safety equipment

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FLC-103: Oxygen Flow Meter Checker

FLC-103: Oxygen Flow Meter Checker

Flow measurement and diagnosis of oxygen flow meters.

Oxygen flow meters are used almost daily in medical institutions. However, in the case of flow-type meters, their accuracy decreases over time due to wear of the float and deterioration of seals, among other structural reasons. Additionally, with dial-type meters, it is unclear whether the set amount of oxygen is actually being delivered, as there may be discrepancies between the dial reading and the actual oxygen flow due to damage from impacts or aging. For these reasons, oxygen flow meters require regular inspections. However, when medical institutions attempt to verify the accuracy of their oxygen flow meters themselves, they need various equipment (pressure regulators, tubes, filters, flow meters, etc.), which makes the inspection process inefficient. Furthermore, depending on the size of the institution, they may have hundreds of devices, making self-inspection challenging. The oxygen flow meter checker is a product that consolidates the necessary equipment for inspecting oxygen flow meters into a compact form. It is an ideal product for those considering checking their oxygen flow meters. We also offer demo units for loan. Please feel free to contact us.

  • Other measurement, recording and measuring instruments

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[Example] Grease Checker

[Example] Grease Checker

Easily check the lubrication supply condition to the bearings! This also helps eliminate human error.

We would like to introduce a case study of the "Grease Checker" handled by Hirokazu Corporation. In a dual-line system, even if there is damage to the piping between the distribution valve and the bearing, the distribution valve operates normally, making it difficult to detect abnormalities. By installing the Grease Checker close to the bearing, the grease supply status to the bearing can be easily confirmed at a glance. [Case Overview] ■ Introduced Product: Grease Checker ■ After Installation - The Grease Checker was installed close to the bearing, and the grease pump was operated. - The indicator pops out for normal areas, while it remains down for abnormal areas, making it easy to identify the problematic locations. *For more details, please refer to the PDF document or feel free to contact us.

  • Lubricants
  • others

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Plasma checker

Plasma checker

The effects of plasma treatment are clear at a glance!

Visualizing the surface modification effects of plasma that are not visible to the eye! Simply place a sheet on the area you want to measure and irradiate it with plasma! The color changes when exposed to plasma! For more details, please contact us.

  • Other inspection equipment and devices
  • Other consumables

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Handy N/S Checker "NSC-01"

Handy N/S Checker "NSC-01"

If it's a simple check, this one is enough! It's suitable for inspecting products after embedding and for research or teaching materials related to various magnetic properties.

The "NSC-01" is a handy N/S checker that can instantly determine and inspect the polarity of magnets. It features a pen-shaped design that is convenient and easy to use for inspectors and operators. The polarity detection results are indicated by a lamp display and also signaled audibly. It is ideal for checking the polarity when incorporating magnets as components, inspecting products after assembly, and for various studies and educational purposes related to magnetism. 【Features】 ■ One unit is sufficient for simple checks ■ Convenient and easy-to-use pen-shaped design ■ Polarity detection results are indicated by a lamp display and an audible signal *For more details, please refer to the PDF document or feel free to contact us.

  • Other inspection equipment and devices
  • Other work tools

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Alcohol Checker 'SKJ-AL001JP'

Alcohol Checker 'SKJ-AL001JP'

Reusable up to 2500 times! A compact and highly portable alcohol tester.

The 『SKJ-AL001JP』 is an alcohol checker equipped with a highly durable sensor that can be used repeatedly up to 2500 times. Simply blow into it from about 1 cm away from the sensor part for approximately 4 to 5 seconds for easy measurement. It features a convenient backlit digital LCD that can be used effectively even in dark conditions or at night. It uses readily available AA batteries, making it easy to use anytime and anywhere, whether you are out or on a business trip. 【Features】 ■ Easy measurement by just blowing into it ■ Equipped with a sensor that can be used repeatedly ■ Digital LCD with backlight ■ Uses AA batteries *For more details, please refer to the PDF document or feel free to contact us.

  • Other measurement, recording and measuring instruments

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Portable Alcohol Checker 'HDL-J8'

Portable Alcohol Checker 'HDL-J8'

Measurement completed in about 20 seconds! An alcohol checker compatible with commercially available straws.

The "HDL-J8" is a portable alcohol checker that can measure the alcohol concentration in breath simply by blowing into it. The measurement results are displayed in three colors: red, yellow, and green. It features a highly visible 7-segment LED display. Equipped with a memory function, it can record up to 50 measurement results. With a cap for cleanliness and a smart design, it is also convenient to carry. 【Features】 ■ Measurement completed in about 20 seconds (preheating about 10 seconds, blowing for 5-10 seconds) ■ Measurement results displayed in three colors ■ Highly visible 7-segment LED display ■ Convenient to carry ■ Compatible with commercially available straws (compatible with 6mm straws) *For more details, please refer to the PDF document or feel free to contact us.

  • Other measurement, recording and measuring instruments

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Alcohol checker

Alcohol checker

A lineup featuring the compact and highly portable "Alcohol Checker SKJ"!

We would like to introduce the "Alcohol Checker" handled by Showa Trading Company. Starting with the "Alcohol Checker SKJ," which allows for easy measurement by blowing into it and is compact and highly portable, we also offer the "Alcohol Sensor AN-S094," which enables data transfer and management to your smartphone via Bluetooth, and the "Portable Alcohol Checker HDL-J8." Please choose according to your needs. 【Product Lineup】 ■ Alcohol Checker SKJ ■ Alcohol Sensor AN-S094 ■ Portable Alcohol Checker HDL-J8 *For more details, please refer to the PDF document or feel free to contact us.

  • Other measurement, recording and measuring instruments

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Alcohol Checker <Immediate Delivery Product>

Alcohol Checker <Immediate Delivery Product>

Introducing products like "AL-LOG" and "HDL-J8"! We also present member products and certified items from the Alcohol Detector Association.

We would like to introduce our "Alcohol Checker" products. We offer the alcohol detection system "AL-LOG," which features a hygienic and economical replaceable sensor unit, as well as the "SKJ-AL001JP," which allows for easy measurement by simply blowing into it. Additionally, we have the "AN-S094," which enables data transfer and management via Bluetooth connection to a smartphone, and the "HDL-J8," which completes measurements in about 20 seconds. 【Features】 ＜Alcohol Detection System: AL-LOG＞ ■ Personal authentication using a driver's license ■ Hygienic and economical replaceable sensor unit ＜Alcohol Checker: SKJ-AL001JP＞ ■ Uses a highly durable semiconductor gas sensor ■ Equipped with a backlit digital LCD for use in dark places *For more details, please refer to the PDF document or feel free to contact us.

  • Other measurement, recording and measuring instruments

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Mandatory use starting December 2023! Alcohol checker.

Mandatory use starting December 2023! Alcohol checker.

Introducing an alcohol checker with a detection speed of about 3 seconds! It features a rechargeable battery and built-in printer for easy operation!

Are you fully prepared for the mandatory alcohol checks? Due to the revision of the Road Traffic Act, "alcohol checks before and after driving" became mandatory from April 2022, and from December 2023, alcohol detectors will be required. Safety driving managers who have the following concerns should take note! - I am worried about the accuracy of the alcohol checker I am currently using... - I don't want to spend time and money (cost) on recording and management... - Maintenance and repairs of the device are a hassle... The "Easy Alcohol Checker" is a user-friendly alcohol detector that can detect alcohol immediately after turning it on, with a detection speed of about 3 seconds, ensuring high precision. It has a built-in printer that allows you to print the results on the spot, and it is rechargeable, eliminating the need for battery replacements, making it economical. 【Features】 ■ Immediate detection after powering on ■ Easy to carry around in the office ■ High precision & high speed (detection in just about 3 seconds) ■ Easy printing (built-in printer) ■ No battery replacement needed (rechargeable and more economical than battery-operated) *For more details, please refer to the materials available for download in PDF format or contact us.

  • Surveillance Cameras

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Low Voltage Wiring Detector Super Line Checker

Low Voltage Wiring Detector Super Line Checker

Wiring route detector with leakage point detection function

It is ideal for wiring checks before new construction or renovation work, as well as during maintenance and when issues arise.

  • Transformers

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