TSI HM685 Hydronic Manometer

TSI HM685 Hydronic Manometer Review

  • Posted on: 22 November 2013
  • By: Sam

Last week I wrote about the TSI HM675 Hydronic Manometer . Today I will be discussing its older brother the TSI HM685 Hydronic Manometer.  The HM685 manometer is an upgrade over the HM675 and has the same features but with a few upgrades. First the HM685 can calculate flow, heat flow, impeller diameter and brake power.