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.
Updated June 2024
Testo 320 - discontinued
It appears that logic and common sense has prevailed
. In an announcement that seemed all too obvious, TSI Alnor has released a few new accessories for their TSI Alnor EBT731 Balometer. This includes a wheeled stand that can extend up to 15ft in the air and LogDat Mobile software that can be used via Bluetooth to operate the Balometer and see data, take pictures, record voice annotations and generate reports.
Finding a quality hydronic manometer can be a tough task. However, the TSI HM675 Hydronic Manometer is great choice. The HM675 can simultaneously measure and display low side, high side, and differential pressure. This unit also has a nice splash-proof case and inputs for two temperature probes. The HM675 reads pressure in H2O, ft H2O, psi, in. Hg, m H2O, kPa, mm Hg, bar and has a range of 0 to 300 psi.
The Testo 870-2 Thermal Imaging Camera hs been discontinued.
The “hot” (pun intended) new section of the thermal imaging marketplace is point-and-shoot entry-level cameras, and manufacturers are eager to offer cameras that have an excellent intersection of price and features. The new Testo 870-2 offers just this – high end features within a reasonable budget.
The Testo 870-1 Thermal Imaging Camera has been discontinued.
The new Testo 870-1 Thermal Imager is designed to provide competition to the entry level cameras of other manufacturers; and while it does do this, it also includes some features that set it apart from the entry level market.
The General Tools model DCS050 has been discontinued.
Klein Tools may be a new name
in Test and Measurement, but they are legendary in quality and performance. They have entered the Test and Measurement with quite a splash and are continuing that trend with the Klein Tools VDV501-815 TDR Ranger Kit. This multi-function tester is a powerhouse that can handle TDR, Cable Length Measurement, Fault Finding and Cable Management.
The Fluke TiR105 Thermal Imaging Camera has been discontinued. 
The Flir E40bx, E50bx, and E60bx Infrared Cameras have been disontinued.
