• Gas independent Piezo resistive sensor: the reading does not change with gas type across the rough vacuum range
• Absolute range 2000 to 1 mbar, relative range -1060 to +1200 mbar
• Absolute accuracy 0.25% of full scale, relative accuracy 0.3% of span
• USB-C interface with built in data logger, sampling 20 ms to 60 s
• Internal Li battery, runtime over 1000 hours, charged over USB-C
• Bluetooth LE available as an option (VD810BT): wireless data transfer to the VacuGraph app
• DN16 ISO-KF connection with G1/4 thread
• Graphic display 400 x 240 with 4+1 membrane keypad
• Rugged build: IP40, max overload 4 bar absolute

• Rough vacuum measurement on pumps, chambers, and vacuum lines
• Leak testing and service checks where the process gas changes
• Vacuum packaging, drying, and degassing
• Laboratory and R&D rough vacuum monitoring
• Lightweight and motorsport engineering, where a gas independent portable meter is an advantage

• Type: portable digital vacuum meter with data logger
• Sensor: Piezo resistive, gas type independent
• Measuring range, absolute: 2000 to 1 mbar (1500 to 1 Torr)
• Measuring range, relative: -1060 to +1200 mbar (-795 to +900 Torr)
• Accuracy, absolute: 0.25% of full scale
• Accuracy, relative: 0.3% of span
• Repeatability: 0.1% of full scale +1 digit
• Resolution: 1 mbar
• Max overload: 4 bar absolute
• Vacuum connection: DN16 ISO-KF, G1/4 thread
• Wetted materials: stainless steel 1.4305, Al2O3 ceramic, FKM
• Interface: USB 2.0 via USB-C, optional Bluetooth LE (VD810BT)
• Power supply: 5 VDC via USB-C
• Battery: internal Li battery, runtime over 1000 h
• Display: graphic, 400 x 240
• Data logger sampling rate: 20 ms to 60 s
• Operating temperature: +5 to +50 °C
• Storage temperature: -20 to +60 °C
• Protection rating: IP40
• Weight: 250 g
• Dimensions: 105.0 x 70.0 x 57.1 mm

A vacuum gauge you cannot trust is worse than no gauge at all: a reading that drifts sends a pump, a leak test, or a packaging cycle out of specification while everything looks fine on the display. The Thyracont VD810 is built to hold a rough vacuum reading steady and to keep it honest across different gases.

The VD810 uses a Piezo resistive ceramic sensor that measures independent of gas type. Whatever the process gas, the reading stays the same, which removes the correction factors that a gas dependent gauge forces on you when you switch from air to argon, nitrogen, or a process mixture. It reads absolute pressure from 2000 down to 1 mbar and relative pressure from -1060 to +1200 mbar, so the same instrument covers vacuum and light overpressure work.

Connection is DN16 ISO-KF with a G1/4 thread, and the wetted parts are stainless steel, Al2O3 ceramic, and FKM, so the sensor stands up to demanding rough vacuum lines and tolerates up to 4 bar absolute overload. The USB-C interface handles data transfer and battery charging, the built in data logger records measurement series at sampling rates from 20 ms to 60 s, and the graphic display with a 4+1 membrane keypad keeps operation simple in the field. For wireless data transfer, select the VD810BT version with Bluetooth LE, which sends readings to the VacuGraph app. When the process runs into fine vacuum, the VD850 adds a Pirani sensor and reaches 5e-5 mbar.

The VD810 is available through AV-TEK Consulting in North America, with application support to match the meter, range, and interface to your process. Explore the full Thyracont range.