Product categories
Showing 97–120 of 144 results
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testo 6681, temperature/humidity transmitter
testo 6681 with the possibility of selecting analog signal outputs, optional two-line display), optional Ethernet or Profibus module, data output in all humidity units, optional relay, optional third analog output
- High-precision Testo humidity sensor with long-term stability for application in high-humidity processes (option)
- The Ethernet module, relay, and analog outputs allow for optimal integration of the transmitter into individual automated systems
- High-quality digital probes and the intelligent calibration concept
- Self-monitoring and an early warning function ensure high system availability
testo 6681 Industrial temperature/humidity transmitter, accuracy up to ±1.0 % RH (depends on the probe type), selectable analog signal outputs, optional display, optional Ethernet module or Profibus DP module, data output in all humidity units, optional relays, external digital interface for adjustment and parameterization, 2 analog outputs, optional 3rd analog output
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testo 6741, compressed air counter, diameter DN15 (1/2”), with analog, pulse, and switching output
Compressed air counter with various signal outputs: analog output, pulse output, 2 switching outputs
Totalizing function (totalizer) for calculating overall consumption
High accuracy: thanks to a defined nominal diameter (DN15), you can adjust the standard volumetric flow ratetesto 6741 dew point transmitter, measuring range down to -45°Ctd, **without display**, connection type G1/2, 4…20 mA analog signal output, optional signal module connector with two switching outputs
Product Description
The testo 6741 instrument was specifically designed for measuring residual moisture in compressed or dry air (adsorption dryers). This type of measurement is successfully carried out thanks to the Testo humidity sensor and its proven and well-established long-term stability. The sensor’s effectiveness has been repeatedly confirmed through tests in international calibration laboratories (PTB, NIST, etc.), where the error limit of ± 1% RH was not exceeded for 5 years without sensor readjustment. Optimal accuracy is achieved due to special tuning in the residual moisture range. -
testo 6742, compressed air counter, diameter DN25 (1”), with analog, pulse, and switching output
- Totalizing function (totalizer) for calculating overall consumption
- High accuracy: thanks to a defined nominal diameter (DN25), you can adjust the standard volumetric flow rate
- Easy installation and use
testo 6742 dew point transmitter, measuring range down to -45°Ctd, **without display**, connection type NPT1/2, analog signal output 4…20 mA, optional signal module connector with two switching outputs.
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testo 6743, compressed air counter, diameter DN40 (1 1/2”), with analog, pulse, and switching output
Compressed air counter with various signal outputs: analog output, pulse output, 2 switching outputs
Totalizing function (totalizer) for calculating overall consumption
High accuracy: thanks to a defined nominal diameter (DN40), you can adjust the standard volumetric flow ratetesto 6743 dew point transmitter, measuring range down to -45°Ctd, with display, connection type G1/2, 4…20 mA analog signal output, optional signal module connector with two switching outputs.
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testo 6744, compressed air counter, diameter DN50 (2”), with analog, pulse, and switching output
- Compressed air counter with various signal outputs: analog output, pulse output, 2 switching outputs
- Totalizing function (totalizer) for calculating overall consumption
- High accuracy: thanks to a defined nominal diameter DN50, you can adjust the standard volumetric flow rate
testo 6744 dew point transmitter, measuring range down to -45°Ctd, with display, connection type NPT1/2, analog signal output 4…20 mA, optional signal module connector with two switching outputs.
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testo 735-1, 3-channel instrument (thermocouples types K, T, J, S, Pt 100)
Durable, reliable, and compact measuring instrument with a connector for high-precision Pt100 probes and two connectors for fast-response thermocouple probes. Measurements from up to 3 additional temperature probes can be displayed on the screen. Using high-precision immersion/penetration Pt100 probes allows achieving a measurement accuracy of 0.05 °C with a resolution of 0.001 °C. This makes the measuring system ideal for use as a reference standard. Measurement results obtained with the testo 735‑1 can be transmitted via the IR port and printed on a Testo printer. Cyclic printing of data is also possible, for example, once per minute.
- Measurement accuracy: 0.05 °C
- Measurement data can be printed on a Testo printer on-site; cyclic printing is possible, e.g., once per minute
- Device menu available in Russian
- Display, save, and print differential temperature data, including min/max/average values
- Acoustic alarm signal when limit values are exceeded
- Protection class: IP65
- Stable accuracy across the entire measurement range thanks to system calibration
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testo 735-2, 3-channel temperature measuring instrument
(TE Type K/T/J/S/Pt100 thermocouples), with acoustic alarm, data memory, PC software, USB cable for data transfer, battery, and factory calibration certificate
- The device memory can store up to 10,000 values
- PC software included for saving and documenting measurement results
- Display, save, and print differential temperature data, as well as max/min/average values
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testo 745, non-contact voltage tester
Including batteries, factory calibration certificate, and instruction manual
- Voltage detection range from 12 to 1000 V
- Protected against water and dust according to IP67 standard
- Adjustable for phase detection or voltage detection
- Visual and acoustic signal
The testo 745 non-contact voltage tester is ideal for a quick preliminary check of any possible causes of faults. It filters high-frequency interference and has a two-stage sensitivity setting.
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testo 750-1, voltage tester
Including batteries, measuring lead protective case, probe tips, factory calibration certificate, and instruction manual
- Clear, patented, fully LED display
- Conforms to the current standard for voltage testers DIN EN 61243-3: 2010
- Safety requirements comply with CAT III
- Robust housing with ergonomic handle and anti-slip ring
Your reliable assistant for checking electrical systems and equipment. Thanks to the fully LED display and unique fiber-optic technology, voltage readings on this tester are clearly and distinctly visible when viewed from any angle.
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testo 750-2, voltage tester
Including batteries, measuring lead protective case, probe tips, factory calibration certificate, and instruction manual
The testo 750-2 voltage tester lets you work even more conveniently than before. Its unique **fully LED display** is easily readable from any angle and clearly and distinctly shows the presence of voltage thanks to the large, bright display segments.
It can be held securely in your hand thanks to the special **anti-slip ring** and **ergonomic handle**. You can easily illuminate dark measurement spots with the **integrated flashlight**. The **robust housing** makes the tester extremely reliable.
In addition to checking for the presence or absence of voltage in electrical circuits or systems, the **testo 750-2** voltage tester is also suitable for use as a **continuity tester** and for **determining the direction of the rotating magnetic field**.
It is equipped with a function for **testing Residual Current Devices (RCDs)**. Thanks to the **vibration feature** when the trigger buttons are pressed, the trip test cannot be performed accidentally.
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testo 750-3, voltage tester
Including batteries, measuring lead protective case, probe tips, factory calibration certificate, and instruction manual
The testo 750-3 voltage tester is the most innovative voltmeter on the market. The clear, fully LED display with all-round fiber-optic technology for perfect voltage display can be easily read from any angle.
The additional LCD display also shows the current readings. The special non-slip ring and ergonomic handle shape ensure you have maximum comfort while working. The **integrated flashlight** helps illuminate dark measurement spots. The robust housing makes the tester extremely reliable.
The testo 750-3 voltage tester is primarily suitable for checking the presence or absence of voltage in the electrical network. Additionally, it can also be used for **continuity testing**, **determining the direction of rotating magnetic fields**, and **testing Residual Current Devices (RCDs)**. Thanks to the **vibration feature** when the trigger buttons are pressed, the trip test cannot be performed accidentally.
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testo 755-1, current/voltage tester
Including batteries, measuring leads, probe tips, factory calibration certificate, and instruction manual
- Simple and safe operation thanks to automatic parameter detection
- Suitable for practically all electrical measurement tasks
- Replaceable measuring leads
- Certified in accordance with DIN EN 61243-3:2010
Current measurement with a voltage tester? The innovative testo 755-1 makes this possible, and is therefore suitable for practically all everyday electrical measurement tasks. The practical automatic switch-on function and automatic parameter detection allow you to work with this instrument with greater convenience than before.
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testo 755-2, current/voltage tester
Including batteries, measuring leads, probe tips, factory calibration certificate, and instruction manual
- Voltage measuring range up to 1000 V
- Simple and safe operation thanks to automatic parameter detection
- Single-pole phase testing to quickly determine if conductors are live
- Certified in accordance with DIN EN 61243-3:2010
The multifunctional voltage tester and current measuring instrument: the innovative testo 755-2. This is a versatile instrument for practically any daily electrical measurement task. It automatically selects the correct measuring parameter, has **replaceable measuring leads**, and an extended voltage measuring range up to 1000 V.
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testo 760-1, multimeter, including batteries
1 set of measuring leads (0590 0010), factory calibration certificate, and instruction manual
When measuring electrical parameters such as current, voltage, or resistance, you rely on absolutely reliable measuring instruments. The **testo 760-1** is a digital multimeter that sets new standards for **reliability**.
Unlike standard multimeters on the market, with the testo 760-1 you do not need to select the measuring function according to the jack for the measuring leads. The instrument determines the corresponding measuring parameter **completely automatically** through recognition of the connected probe’s jack, which **eliminates any dangerous incorrect settings**.
Operating the multimeter is easier and more modern than before. The traditional rotary switch has been replaced by **function buttons**, which give you the ability to control the instrument with **just one hand**. And thanks to the **large backlit display**, you can easily read the measurements at a glance.
The **testo 760-1** multimeter has all the **essential functions** for your everyday measuring tasks and is thus the **ideal entry-level instrument** in the class of professional digital multimeters.
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testo 760-2, digital multimeter with true RMS measurement
Including batteries, 1 set of measuring leads (0590 0010), 1 Type K thermocouple adapter, factory calibration certificate, and instruction manual
- Measurement of True Root Mean Square (TRMS)
- Current measurement in the µA range
- Integrated adapter for temperature measurement
- Low-pass filter for accurate measurement results on frequency-controlled motors
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testo 760-3, digital multimeter with true RMS measurement
Including batteries, 1 set of measuring leads (0590 0010), factory calibration certificate, and instruction manual
- Simple and safe operation thanks to automatic parameter detection
- Comfortable one-handed operation without a rotary switch
- Voltage measuring range up to 1000 V
- Additional functions such as True Root Mean Square (RMS) measurement, low-pass filter, and temperature adapter
The testo 760-3 is the model with the largest feature set in the Testo range of digital multimeters. In addition to automatic parameter recognition, it is characterized by a voltage measuring range up to 1000 V, as well as large frequency and capacitance measuring ranges. Therefore, this digital multimeter is suitable for industrial applications as well.
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testo 770-1, clamp meter with true RMS measurement, including batteries
Including batteries, 1 set of measuring leads (0590 0010), factory calibration certificate, and instruction manual
- Fully **retractable pincer jaw** for maximum convenience
- **Automatic AC/DC detection**
- **Large two-line display**
The **testo 770-1** clamp meter is optimally suited for measuring current on tightly packed power cables or small-diameter wires. The unique gripping mechanism allows you to easily and safely clamp virtually any cable individually.
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testo 770-2, clamp meter with true RMS measurement
Including batteries, 1 set of measuring leads (0590 0010), 1 Type K thermocouple adapter, factory calibration certificate, and instruction manual
- Fully retractable pincer jaw to simplify your work
- Automatic AC/DC detection and a large two-line display
- Measurement functions for inrush current on electric motors and microampere (µA) measurement
- Temperature measurement using Type K thermocouples via a special temperature adapter
Thanks to the innovative gripping mechanism, the testo 770-2 clamp meter is optimally suited for non-contact measurements on tightly packed, small-diameter cables. In addition to the standard functions of the testo 770-1 clamp meter, it also offers a temperature measurement adapter and can operate in the microampere (µA) measurement mode.
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testo 770-3, clamp meter with Bluetooth® and true RMS measurement
Including batteries, 1 set of measuring leads (0590 0010), factory calibration certificate, and instruction manual
- Easy to work with thanks to the fully retractable pincer jaw
Automatic AC/DC detection and a large, backlit two-line display
Improved True RMS measurement method
Communication with your mobile device via Bluetooth (using the testo Smart Probes app)
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Testo 805 Compact infrared thermometer
The Testo 805 compact infrared thermometer, measuring just 80 mm, fits in any pocket, meaning it’s always ready to hand. It is designed for measuring the temperature of incoming goods and for checking temperature conditions in cold storage areas of supermarkets. It is ideally suited for express measurements in the food industry and in household use.
- Pocket-sized, practical, and compact
- Low uncertainty/error in the most common temperature range for food products
- The waterproof and robust TopSafe case satisfies the tightness requirements for a dishwasher’s protective sleeve, with a protection class of IP65
- Display of maximum and minimum temperatures
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testo 805 i, Bluetooth infrared thermometer, smartphone operation, including batteries and calibration protocol
When used in combination with a smartphone or tablet, the Bluetooth infrared thermometer testo 805i functions as a compact device for measuring the temperature of walls, as well as hoses and components of air conditioning systems. The measurement location is clearly marked using an eight-point laser circle.
Documenting measurements with images via the mobile app
By installing the testo Smart Probes app on their mobile device, users can view measured values on the screen of their smartphone or tablet. But that’s not all: the mobile app allows users to create and save photos with measured temperature values and laser marking of the measurement location. Special measurement modes simplify the process of detecting areas prone to condensation and mold. The app also provides a list of emissivity values for specific materials – no need to look up this information elsewhere. All measurement data can be displayed as a graph or table. Measurement reports created with the app can be sent directly via e-mail as PDF or Excel files.System requirements:
iOS 8.3 or higher
Android 4.3 or higher
Bluetooth 4.0 or higher -
testo 810: Air temperature and infrared surface temperature measurement in one instrument
Product Advantages:
- Measurement of air temperature and non-contact measurement of surface temperature
- Infrared measurement with a single-point laser marker and 6:1 optics
- Differential temperature indication, for example, between a window and the air
- Hold function and max./min. values
- Display illumination (or Backlit display)
- Calibration protocol (or Calibration certificate)
- Protective cap for safe storage
- Hand strap and belt pouch
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testo 815, Sound level meter
Accuracy class 3, with microphone, wind protection cap, battery, headphone jack, in a practical case
The testo 815 is an affordable sound level meter corresponding to accuracy class 3.
- Automatic measurement range switching
- Backlit display
- Mains adapter operation
- Display with graphic indicator (histogram)
- AC signal output for connection to a recorder or amplifier
- DC signal output of 10 mV/dB for connection to recorders and plotters
- Time weighting (Fast/Slow)
- Measurement range setting
- Frequency weighting (A/C)
- Current value display
- Automatic range switching
- Display backlight
- Connection to mains power supply unit
- Histogram display
- AC output for connection to recorders and amplifiers
- DC output with 10 mV/dB for connection to recorders and data loggers
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testo 826-T2, laser marker and acoustic signals bar infrared, TopSafe and functionalities high bar
The Quicktemp 826-T2 device is similar to the Quicktemp 826-T1 but has additional features: a laser marker to highlight the measurement area and an audible signal when values go beyond preset limits.
- All advantages of the Quicktemp 826-T1
- Laser marker
- Audible signal




