Joman List of Products and Services

It is suitable for accurate measurement of narrow surfaces and concave surfaces.

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It is a wooden hygrometer with a rounded design.

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The part that is easy to measure and apply to the body has a curved surface.

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You can connect to a PC (Windows) via micro USB.

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It is a portable digital microscope that supports various languages and can be folded.

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The ends of the gauge are respectively a needle type and a roller type, with the needle type suitable for angular areas and the roller type suitable for curved areas.

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Three types of pH test powder for calibration are included.

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This is a portable sound level meter with a measurement range of 30 to 130 dBA and an accuracy of ±1.5 dB.

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It is a multifunctional noise meter.

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It is a portable sound level meter with a measurement range of 30 to 130 dB.

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By attaching it to a straightedge, positioning from the end face and marking work becomes convenient.

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It is a rechargeable digital angle gauge with a built-in level.

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By tightening the handle, the measurement value (HW) is displayed on the dial meter at the top of the product. The included instruction manual also contains a conversion table that allows you to convert hardness (HW) to Rockwell E (HRE)/F (HRF) and Vickers hardness (HV).

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The base part has a built-in magnet, allowing it to be installed on inclined surfaces.

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It can be used for bird watching, understanding the number of people and traffic volume, and tracking factory shipment numbers.

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It can be used for birdwatching, understanding the number of people and traffic volume, and tracking factory shipment numbers.

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You can connect it to a PC or smartphone (Android) via USB. It is suitable for checking barriers and semiconductors, etc.

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You can measure angles using the protractor and the rod part.

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You can measure angles using the protractor and the rod part.

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It is suitable for measuring small objects and marking tasks.

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It is a stand for fixing the micrometer.

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It is a thickness gauge capable of measuring ferrous and non-ferrous metal substrates.

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It is a standard dial gauge with an accuracy of 0.01mm.

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It can be used for measuring inner diameters, etc.

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Smooth painted frame, measuring surface with ultra-hard chip, smooth surface of chrome scale.

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It is a meter for measuring tension (tension value).

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By tightening the handle, the measurement value (HW) is displayed on the dial meter at the top of the product. The included instruction manual also contains a conversion table that allows you to convert hardness (HW) to Rockwell E (HRE)/F (HRF) and Vickers hardness (HV).

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It is a stopwatch with a simple design and functionality.

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It is widely used to measure the resistance of generators, motors, transformers, wiring, household appliances, and other electrical equipment such as control cables, signal cables, communication cables, and power cables.

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Purpose: Insulation resistance testing, circuit resistance measurement, leakage current verification.

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This product is used for measurements in power, telecommunications, railways, mining, and other sectors, and it measures not only the grounding resistance of various devices but also the resistance values and grounding voltage of low-resistance conductors.

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This product is used for measurements in power, telecommunications, railways, mining, and other sectors, and it measures not only the grounding resistance of various devices but also the resistance values and grounding voltage of low-resistance conductors.

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This product is widely used to measure the insulation resistance of generators, motors, power transformers, wiring, electrical appliances, and other electrical equipment such as control, signal, communication, and power cables.

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It is used to quickly measure the concentration and refractive index of sugar-containing solutions. It is widely used in sugar, beverages, and other industrial fields, as well as in agricultural production and scientific research. It is suitable for measuring the sugar content of products with high sugar content, such as liquid sugar, fruit juices, soft drinks, and carbonated beverages. In the process from planting fruits to selling them, it can be applied to accurately determine the harvest timing and to grade and classify sweetness.

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Measurement range: 7.5–44 (rapeseed, sesame, soybean meal, cottonseed), 10–50 (soybean, peanut), 11–50 (barley, rice, sorghum, watermelon seeds), 11–55 (rice, wheat), 11.5–50 (corn, pellet feed)

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Moisture measurement using microwaves has the advantage of enabling rapid and accurate measurements compared to traditional moisture measurement by drying weight loss. Application fields include the chemical industry, building materials, wood, paper, and food, and it can also be used as a moisture meter in laboratories.

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Compared to traditional moisture measurement methods based on drying weight loss, microwave moisture measurement has the advantages of being rapid and accurate. Its application fields include chemistry, building materials, wood, paper, and food.

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It is a pH/ORP data analyzer that can simultaneously collect pH/ORP data, has upper and lower limit alarm functions, responds quickly, and provides stable data.

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This product is used as an adjustable resistor in alternating current and direct current circuits and is commonly used in laboratories.

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This is a direct current voltmeter suitable for experiments, tests, and measurements. The withstand voltage has been increased to 500V.

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Compared to the Wheatstone bridge, it is suitable for measuring fine direct current resistances of less than 1Ω.

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It is equipped with a built-in galvanometer and bridge power supply, making it suitable for on-site inspection and maintenance, as well as resistance measurement in experiments and research.

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It is a multifunctional stopwatch that can display hours, minutes, seconds, AM/PM, months, days of the week, etc.

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Due to the magnetic function, it can be installed on sloped surfaces and pillars.

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A resistor connected in parallel with the ammeter can expand the measurement range of the ammeter.

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