The Testo 511 differential pressure gauge is quoted at 1380-1400 yuan in Beijing, 1,000-1200 yuan in Guangzhou, 1320-2080 yuan in Dongguan, and 1,000-1480 yuan in Shanghai. Testo 511 differential pressure meter description:
Range: 300 to 1200 hPa
Resolution: 0.1 hPa
Accuracy: 3.0 hPa
Units: hPa, mbar, Pa, mmH2O, mmHg, inH2O, inHg, psi, m, ft
Operating temperature: 0～+50°C
Battery Type: Alkaline Battery (2 AAA)
Battery life: 500 hours (normal use, off backlight)
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