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The TM220 and TM250 series combine the sophisticated features the Network Thermostat (NT) series with the added capability of independent alarming on two external sensor inputs which can sense temperature or closure of an external relay.
The TM Series Thermostats are ideal for light commercial facilities that require inexpensive remote HVAC management and refrigeration monitoring, such as quick service restaurants, casual dining establishments and convenience stores where product integrity and safety are crucial.
The TM220 and TM250 share identical features, however, the TM250 will also sense and control relative humidity in a single HVAC zone. Pre-defined relative humidity limits may trigger dehumidification by forcing on the air conditioning system or by triggering a relay to actuate an external dehumidifier. The unit will also send e-mail of text message alarms if relative humidity exceeds a pre-defined threshold or falls below a pre-set limit.
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