Digital pressure gauge 681

The Additel 681 digital pressure gauge: the benchmark instrument for ultra-precise pressure measurements

The Additel 681 digital pressure gauge is an essential standard in the world of industrial pressure calibration and measurement. Designed with cutting-edge silicon sensor technology, this pressure gauge ensures exceptional accuracy, even in the most demanding conditions. Each sensor is individually tested and temperature compensated between -10°C and +50°C, ensuring flawless accuracy across its entire operating range.

The Additel 681 is not just a pressure gauge: it offers a wide range of configurations to suit all types of pressure, whether differential, absolute, relative or compound. Whether you work in industrial maintenance, laboratories, ATEX zones or outdoor environments exposed to humidity, this device is the answer with its IP67 waterproof and explosion-proof version (681IS).

Its 5-digit backlit digital display, with a fan-shaped scale inspired by analogue pressure gauges, facilitates real-time reading while providing an intuitive view of the pressure. You can even record up to 21,843 measurements including date, time, temperature and pressure, thanks to the integrated data logging option. This level of detail allows measurements to be tracked and analysed over time, which is invaluable for audits, diagnostics or quality validation.

Additel has designed this pressure gauge with total versatility in mind: 9V battery or mains power supply, choice of panel or bottom connection mounting, various connectors (NPT, BSP, M20, autoclave), and compatibility with several data analysis software packages. It thus combines flexibility, robustness and metrological performance.

All in all, the Additel 681 pressure gauge impresses with its accuracy of 0.02% to 0.2% depending on the model, its ease of use and its ability to meet the challenges of pressure measurement in all industrial sectors. Its reliability, ergonomics and numerous options make it a strategic choice for technicians and engineers looking for a reliable and comprehensive tool.

• Pressure ranges: ±1 inH₂O to 60,000 psi (±2.5 mbar to 4,200 bar)
• Accuracy: 0.02%, 0.05%, 0.1%, 0.2% full scale or 0.1% of reading
• Display: FSTN LCD screen, 5 digits, backlit, digit height 16.5 mm
• Units of measurement: Pa, kPa, MPa, psi, bar, mbar, kgf/cm², inH₂O, mmH₂O, inHg, mmHg
• Operating temperature: -10 °C to +50 °C
• Storage temperature: -20°C to +70°C
• Humidity: <95%
• Power supply: 9 V alkaline battery (supplied) or mains adapter (optional)
• Battery life: up to 4000 hours depending on usage
• Materials: aluminium alloy housing, parts in contact with 316L stainless steel
• Dimensions: Ø110 mm x 35 mm / (panel mount: Ø140 mm x 86 mm)
• Weight: 0.6 kg
• Waterproof rating: IP67 (model 681IS)
• Shock resistance: 100 g / 11 ms
• Vibration: 5 g (20-2000 Hz)