Sauermann Si-RM3 digital wireless manifold with P/T probesSauermann Si RM3 digital wireless manifold with P T probes Sauermann 's Si RM3 wireless digital manifold is designed for pressure and temperature measurement and settings on refrigeration systems, offering installers an ergonomic solution ideal for even the tightest spaces. Featuring a Si Manifold app with Bluetooth technology, this instrument can operate from a distance of up to 30 meters via a low energy wireless connection, providing a host of