BYPASS & POWER-FAN HUMIDIFIER ACCESSORIES AND PARTSPriceQuantity
Auto Trac Sensor and Shield
Aprilaire 8052/4278
"Auto - Trac" Replacement Temperature Sensor and Shield
$7.99  

SENSORSPriceQuantity
Product Image Aprilaire 8051
Flush Mount Indoor Remote Sensor
$17.99  

THERMOSTAT MODULESPriceQuantity
Product Image Nordic Electronics 3000
Turns 2 Thermostat Wires Into Equivalent of 4, Or 4 Wires Into 6
$91.99