Handheld meters – find manufacturers and suppliers

Handheld meters are compact, portable instruments used to measure various physical quantities such as temperature, pressure, humidity or electrical values.

They are crucial in many industries, especially in maintenance, quality assurance, inspection and construction.

Below is an overview of how handheld measuring devices work and how they are used, their benefits and tips on maintenance and calibration:

How hand-held measuring devices work:

The functionality of handheld measuring devices depends on the type of measured variable. The main categories are:

1. Electrical meters:
   Multimeters measure electrical quantities such as voltage, current and resistance.
   Functionality: A multimeter consists of a display and various probes (test probes). It measures the voltage in volts, the current in amperes or the resistance in ohms by passing the electrical quantity to be measured through the integrated measuring circuit and showing the result on the display.
   Use: In electrical installations, for troubleshooting electrical devices or circuits and for testing batteries and power supply units.
2. Pressure gauges (manometers):
   Pressure gauges measure the pressure in liquids or gases.
   How they work: The device measures the pressure difference between a reference value (often atmospheric pressure) and the pressure to be measured. Mechanical pressure gauges work with springs or diaphragms, while digital devices use pressure sensors to determine the pressure.
   Use: In heating and ventilation technology, for testing pressure vessels and for vehicle maintenance (tire pressure).
3. Temperature measuring devices: (thermometers)
   Infrared thermometers measure temperature without contact using infrared radiation.
   How it works: The thermometer measures the infrared radiation emitted by an object and converts this into a temperature value. Depending on the calibration, the radiation is converted into the temperature of the object.
   Application: In the food industry, in the maintenance of machines, for checking electrical installations and heating systems.
   Thermometers with probes use sensors such as thermocouples or resistance temperature detectors (RTD) to measure the temperature of a medium directly.
4. Humidity measuring devices (hygrometers):
   Hygrometers measure the humidity or moisture content of materials.
   Functionality: Hygrometers can be based on different measuring principles, e.g. capacitance change or dew point. Capacitive hygrometers measure the change in electrical capacitance due to humidity.
   Use: In the construction industry for checking building materials, in food processing and in climate control.
5. Thickness gauges:
   Ultrasonic thickness gauges measure material thickness using ultrasonic pulses.
   How it works: An ultrasonic pulse is emitted by a sensor and reflects off the opposite material surface. The thickness of the material is calculated from the transit time of the sound.
   Application: For measuring the thickness of metal, plastic and other materials, often used in quality control and in the construction industry.
6. Light meters (luxmeters)
   Luxmeters measure the intensity of light.
   How it works: A luxmeter detects light through a light sensor (often a photo element) and converts the light signal into a lux value.
   Use: To check the illuminance in buildings, at workplaces or in agriculture.

Use of hand-held meters:

Hand-held meters are used in many areas and applications:

1. Maintenance and repair:
Electrical measuring devices (multimeters, current clamps) are used for troubleshooting and diagnosis in electrical systems. For example, technicians can use a multimeter to identify defective cables or components.
Pressure and temperature measuring devices are indispensable in the maintenance of heating, ventilation and air conditioning systems. Here they are used to check the functionality of pumps, valves and systems.

2 Quality assurance:
Moisture and thickness gauges are used in the construction and manufacturing industries for quality control. Moisture meters test building materials, while ultrasonic thickness gauges measure the thickness of workpieces and raw materials.
In building management and architecture, luxmeters ensure that lighting requirements are met.

3. Safety checks:
Gas detectors are handheld devices used to find gas leaks. They are used in gas supply, in the chemical industry and for checking heating systems.
Temperature and pressure gauges are also used to monitor safety-critical systems to ensure that temperatures and pressures remain within safe limits.

4. Building and environmental measurements:
Moisture meters are used by builders and architects to check moisture levels in building materials before surface treatments are applied.
Light and noise meters are used to ensure compliance with health and safety and environmental regulations. Light and noise pollution in the workplace is measured with hand-held measuring devices.

5. Research and development:
In research and development, particularly accurate handheld meters are used to monitor and record experimental parameters such as temperature, humidity and pressure.

Advantages of handheld meters:

• Because they are lightweight and portable, handheld meters can be transported to different locations and used in a wide variety of environments.
• Most handheld meters are user-friendly and require little training.
• They often provide instant readings, making them ideal for quick testing and analysis.

Maintenance and calibration:

• To ensure accurate measurement results, handheld meters must be calibrated regularly.
• Proper handling and maintenance of the devices (e.g. cleaning the sensors) extends their service life and ensures reliable results.

Handheld meters are indispensable tools in many industries that require precise, portable and fast measurements. Their ease of use and versatility make them an indispensable tool for technicians, engineers and quality inspectors. The correct selection and care of the devices ensures reliable measurements and contributes to efficiency and safety in numerous areas of application.

Below you will find an overview of the most important criteria to look out for when buying handheld measuring devices:

When purchasing handheld measuring devices, there are several factors you should consider to ensure that the device meets the requirements of your specific application.

• Make sure that the handheld meter is suitable for the specific application. For example, you should use multimeters or current clamps for electrical work, while infrared thermometers or thermocouples are required for temperature measurements.
• Make sure that the device is compatible with the materials or media to be measured to ensure accurate results and avoid damage to the device.
• Make sure that the measuring range of the device matches your requirements. For example, a multimeter for voltage measurements must cover a range that is suitable for both low and high voltages.
• Measurement accuracy is crucial, especially in precision applications. Devices with higher accuracy are usually more expensive, but are essential for applications such as laboratory work or industrial quality testing.
• An easy-to-read display and intuitive operation are important, especially in harsh working environments or for complex measurements. Look for a device that is easy to set up and operate.
• As handheld measuring devices are used on the move, the device should be lightweight and ergonomically designed. A robust design is an advantage in order to withstand knocks and drops.
• Pay attention to the quality of the housing and the sensors. Devices designed for industrial use should be robust and resistant to shocks, vibrations and extreme temperatures.
• In harsh environments, it is important to choose a device with the right protection class (e.g. IP65 for dust and water-resistant devices).
• Features such as backlighting, automatic switch-off, memory functions for measurement data or Bluetooth connectivity can significantly improve the operation and handling of the device.
• Depending on the application, measurement speed can be a critical factor. Devices that deliver measurement results quickly and efficiently are beneficial in high-throughput environments or when troubleshooting in real time.
• Check whether the device needs to be calibrated regularly and whether calibration is easy to perform. It is beneficial if the manufacturer offers calibration certificates and support.
• Check whether spare parts or accessories such as batteries and probes are easy to obtain and replace.
• Devices that are used regularly should have a long battery life to minimize downtime. Alternatively, you can choose a device with rechargeable batteries or a power connection.
• For battery-powered devices, it makes sense to look for readily available rechargeable batteries.
• Some devices offer the option of storing measurement data internally, which can be useful for later analysis or documentation.
• Modern handheld measuring devices often offer USB, Bluetooth or Wi-Fi connectivity to transfer measurement data to a computer, tablet or smartphone. This is particularly beneficial when extensive measurements or reports are required.
• Make sure that the device complies with the relevant national and international standards (e.g. ISO, DIN), especially if it is used in regulated industries such as medical technology, the automotive industry or in laboratories.
• Safety certificates such as CE, UL or IEC are particularly important for electrical measuring devices to ensure safe use in high-voltage environments.
• Check the warranty conditions of the device and whether the manufacturer offers a good after-sales service, e.g. for repairs or calibrations.
• Make sure that accessories such as replacement sensors, test cables or special adapters are easily available over the long term.
• Take into account both the purchase price and the follow-up costs (e.g. calibration, maintenance, spare parts). Higher-quality devices are often more durable and offer more accurate measurements.
• Choose a device that meets your requirements without offering unnecessary features that drive up the price but are not needed.

When buying handheld measuring devices, make sure that the device is suitable for your specific requirements in terms of measuring range, accuracy, usability and robustness. Aspects such as calibration requirements, battery life, data storage capabilities and manufacturer support are also important factors. By carefully weighing up these points, you can ensure that the handheld measuring device can be used reliably and efficiently in your day-to-day work over the long term.

Handheld measuring devices can be purchased from various suppliers. Comprehensive information about manufacturers and suppliers of Hand-held measuring devices from all over the world can be found on Exportpages.