RDO Cap Replacement Kits Environmental Sensor Kasco lists the C-25 as

Kasco lists the C-25 as the optional control panel

the Aqua TROLL 400 can be used for spot checking or deployed for long-term monitoring using a VuLink telemetry device

built-in error prevention

Flat-face design

Confirm pond dimensions and minimum operating depth at the planned fountain location

RDO Cap Replacement Kits Environmental Sensor Kasco lists the C-25 asThe RDO Sensor Cap Kits have everything you need to replace your expired RDO Cap for the Aqua TROLL 500 to 800 Multiparameter Sondes or the RDO Blue Temperature & DO probes. X Caps have a life expectancy of 24 months Fast Caps have a life expectancy of 12 months