MOHAMMAD MAHDI Electronics Trading LLC
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The Testo 0638 1741 is a low pressure probe measuring from -1 to +10 bar with ±1 % of full-scale accuracy. Rated for -40 to +100 °C and a high 25 bar overload, it is ideal for pressure measurement in refrigeration, heat pump and industrial systems.
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The Testo 0638 1547 is a 100 hPa differential pressure probe with ±0.1 hPa low-range accuracy, 0.01 hPa resolution and a robust metal housing. Its high 1,000 hPa static pressure and 300 hPa overload ratings make it ideal for accurate differential and flow pressure measurements.
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The Testo 0638 1347 is a precision differential pressure probe with a fine 0 to 100 Pa range, ±(0.3 Pa + 0.5 % of m.v.) accuracy and 0.1 Pa resolution. It is ideal for very low-pressure measurements such as filter monitoring and clean-room differential pressure checks.
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The Testo 0638 1742 is an oil pressure probe measuring 0 to 25 bar (0 to 360 psi) with a ¼” SAE connection. Rugged and with a 2.9 m cable, it is designed for checking oil pump pressure on oil-fired heating systems.
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The Testo 0638 1345 is a precision differential pressure probe with a fine 0 to 100 Pa range and ±(0.3 Pa + 0.5 % of m.v.) accuracy. Ideal for very low-pressure measurements such as filter monitoring and clean-room differential pressure, it connects via a 1.5 m cable.
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The Testo 0638 1445 is a 10 hPa differential pressure probe for measuring differential pressures and, combined with a Pitot tube, flow velocities. With ±0.03 hPa accuracy and a 1.5 m cable, it works with both Prandtl (Ø 7 mm) and straight (Ø 8 mm) Pitot tubes.
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The Testo 0638 1545 is a 100 hPa differential pressure probe for measuring differential pressures and, with a Pitot tube, flow velocities. With ±0.1 hPa accuracy in the low range and a 200 hPa overload rating, it works with Prandtl (Ø 7 mm) and straight (Ø 8 mm) Pitot tubes.
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The Testo 0638 0330 is a high-precision fine pressure probe for differential pressure and temperature measurement with the testo 320 and testo 330. Cyclic zeroing gives it no zero-point drift, enabling accurate gas pressure, 4 Pa and heating-check measurements alongside flue gas analysis.
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The Testo 0638 1748 is a high pressure probe for pressure tests up to 25 bar, including on liquid media. Working with the testo 324, it enables high-pressure tests on water pipes and waste water pipe tests according to DIN EN 1610.
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The Testo 0563 0004 10 Smart Probes Heating Kit combines a testo 115i clamp thermometer, a testo 510i differential pressure gauge and a testo 805i infrared thermometer in a rugged Smart Case. Operated wirelessly via the testo Smart App, it equips heating engineers to measure temperature, pressure and surface temperature on the move.
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The Testo 550 is a robust digital manifold for refrigeration and air-conditioning service, combining two temperature-compensated pressure sensors with automatic evaporating and condensing temperature calculation. With connections for temperature clamp probes, a large refrigerant database and Bluetooth® app support, it makes superheat, subcooling and evacuation measurements fast and reliable.
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The Testo 526-2 is a high-precision differential pressure measuring instrument with an internal sensor and a measuring range from 0 to +2000 hPa. Differential pressure can be determined particularly precisely, to an accuracy of ±0.05% of the final value, making it a reference-grade tool for the most demanding ventilation, industrial and laboratory measurements.
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The Testo 526-1 is a high-precision differential pressure measuring instrument with an internal sensor and a measuring range from 0 to +2000 hPa. It calculates differential pressure to an accuracy of ±0.1% of the final value, making it ideal for demanding pressure measurement in ventilation, industry and laboratory applications.
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The Testo 312-4 High-Pressure Set extends the popular differential pressure gauge with high-pressure plugs and a high-pressure probe for measurements up to 25 bar. Complete with hose set, balloon pump, conical test plugs, a fast printer and a system case, it is a comprehensive kit for gas pressure and high-pressure testing on heating systems.
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The Testo 521-2 is a high-precision differential pressure measuring instrument for air-conditioning and ventilation technology, with 0.1% full-scale accuracy. It excels at measuring pressure drop on filters and checking fans and extractors, and is also suitable for pitot-tube measurements in ventilation ducts and process air in the 5 to 100 m/s range.
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The Testo 521-3 is a high-precision differential pressure measuring instrument for low-range measurements up to 2.5 hPa in air-conditioning and ventilation technology. Its high accuracy and outstanding resolution make it ideal for clean-room measurements and flue inspections, and with an optional pitot tube it measures flow velocities from 1 to 20 m/s.
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The Testo 312-4 is a high-precision differential pressure gauge basic set for gas and pressure measurements on heating systems. Supplied with a hose set, balloon pump, conical test plugs, a fast printer and a system case, it measures differential pressure up to 200 hPa and external pressure up to 25 bar, making it a complete kit for gas-network and boiler pressure testing.
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The Testo 324 Pro set is worthy of its name: there is no more professional way to carry out statutory tests on gas pipes. Thanks to a comprehensive range of accessories, it equips the technician for every measuring task involved in testing gas pipes, combining automatic tightness and pressure testing with the full accessory kit for demanding jobs.
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The Testo 512 (0 to 2000 hPa) is a robust digital differential pressure measuring instrument for HVAC and industrial pressure and flow-velocity measurement in all non-corrosive gases. With a piezoresistive sensor, 0.5% full-scale accuracy and a wide choice of selectable units, it is a dependable tool for ventilation, filter and process pressure work.
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The Testo 324 basic set is a professional pressure and leakage measuring instrument that lets you get to work straight away on all relevant and legally prescribed tests on gas pipes. Over time gas pipes can become leaky, and with stored guidelines and automatic measurement routines the testo 324 carries out tightness and pressure tests quickly, safely and accurately.
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The Testo 512 with a measuring range of 0 to 2 hPa is ideal for quick and easy filter checks and low-range differential pressure measurement on ventilation and air-conditioning systems. Differential pressure measurements reveal whether filters still work properly or are clogged and need replacing, and the meter also determines flow velocity with a pitot tube.
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The Testo 512 with a measuring range of 0 to 200 hPa is a robust digital differential pressure meter for higher-pressure ventilation, duct and process tasks. It measures differential pressure and, with a pitot tube, flow velocity from 10 to 100 m/s in all non-corrosive gases, with 0.5% full-scale accuracy and strong overload protection.
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The Testo 549 is a compact entry-level digital manifold for refrigeration and air-conditioning technicians. Two temperature-compensated pressure sensors ensure fast, precise high- and low-pressure measurement and automatic calculation of evaporating and condensing temperature, while two connections for external temperature probes make superheat and subcooling checks easy.
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The Testo 557 is a 4-way digital manifold set with an integrated vacuum sensor for refrigeration and air-conditioning service. It measures high and low pressure, temperature and vacuum in a single instrument, so one tool covers pressure testing, superheat and subcooling calculation and full system evacuation, with Bluetooth® and the testo Smart App for documentation.
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