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Honeywell
T921A1183
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Proportional Thermostat, Low Voltage 3 Wire Control, 13-29 Degree Celsius, 135 Ohm Potentiometer Output Signal, Wall Mount, Removable Setting Knob Prevents Unauthorized Tampering with Setpoint
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Honeywell
T921A1191
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Proportional Thermostat, Low Voltage 3 Wire Control, 56-84 Degree, 135 Ohm Potentiometer Output Signal, Wall Mount, Removable Setting Knob Prevents Unauthorized Tampering with Setpoint, Includes Slotted Sides and an Add On Faceplate to Allow Thermostat to be Mounted Horizontally
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