Thanks for your replies crane & VacationLand; this confirms that these flow/temp. sensors offer an exceptional price/performance ratio, as on eBay they can be had for $32/ea (used, shipped: FLOW METER SENSOR IFM EFECTOR | eBay), along with some BSP-TC adapters (e.g., Brewers Hardware 1"/1.5"...
Hi VacationLand, any update on your experiences with the IFM SM6004 flow meters? I'd like to use 2-3 for controlling proportional valves, but also for computing volumes for HLT-MLT and MLT-BK transfers, to back up/compare to hydrostatic pressure sensor readings. Have you been able to...