Overview Other Details Reviews Product Description WALL MODULE WITH TEMPERATURE AND HUMIDITY SENSOR. NETWORK JACK INCLUDED.DITY. Other Details 0.2 Product Videos Custom Field Product Reviews (No reviews yet) Write a Review Write a Review × Honeywell Honeywell TR21-H/U Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Email *Review Subject *Comments