Takagi TK-RE02 / A.O. Smith 9007666005 Temperature Remote Controller - It allows output temperatures beyond the factory settings shows error codes, and monitors incoming and outgoing water temperatures.

(95, 100, 102, 104, 106, 108, 110, 111, 113, 115, 117, 122, 131, 140, 158, 167ºF).

To be used with Takagi tankless water heater models: Flash T-KD20, Flash T-K2, Flash T-KJr, Flash T-K1S.