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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.