M800(8800310030) Invensys is now Schneider Electric. The M800 is branded Schneider now. EL198/393.111 ECH 210B MW320026 replaced by ST 542 KIT SRD991 BHQS7EA4NR-V04 MW320030 obsolete/replacement ST 542 KIT PolluComE - KIT DMI-3 Multi Function Key EXP211 ECH 210A (Obsolete replaced by ST 542 KIT) Chillerin ECH400 obsolete, replacement SD646-KIT;Thermostat SD646-KIT PPV2909-02 Type: WU-DA112MT-M Cover for Type: WU-DA112MT-M MP-481-729-02