Sauermann Kimo Si-PM3 Manometer The Sauermann Kimo Si-PM3 Manometer is a compact, handheld instrument for precise differential pressure and pressure measurement in HVACR systems. With a measuring range of -150 to 150 hPa (-60 to 60 inH₂O), it suits commissioning, troubleshooting and maintenance of heating, ventilation and air conditioning systems. A backlit LCD screen, Min/Max/Hold/Live functions and auto-zeroing make it straightforward to use on site. Battery life is rated at up to 170 hours, with an auto-off function after 10 minutes of inactivity to preserve battery life, and a magnetic back allows hands-free use on metal surfaces. A carrying bag is included to protect the unit during transport. The Si-PM3 measures differential and static pressure directly as standard. Air v