Features                                                                                                                                 
Indoor temperature (F or C) and humidity
Remote temperature (F or C) and humidity
Can receive as many as three remotes (TX3U or TX4U)
One TX4U included
Calculates sun/moon rise/set based on entered city
name (choose from 250 North American cities)
Barometric air pressure with 30-hour history chart
Forecast icon, based on changing air pressure
Forecast is about 75% accurate for 12-20 hours
Current moon phase
Wall Hanging or Free-standing (fold-out stand)
Radio-controlled time and date
Temperature alarm for remote temperatures
Storm warning indicator
12 or 24 hour time mode

Specifications                                                                                                                      
Range: Indoor Temp 14F to 140F; Outdoor Temp  -21.8F to +156.2F; rH 20% to 95%
Pressure; 28.30 to 30.80 inHg
Resolution: Temp 0.2F
Accuracy: Temp +/- 1.5F; Humidity +/-3% (35-85%); +/-5% (>85%, <35%)
Transmission Frequency: 433.92 MHz
Transmission Range: Up to 80 feet open air
Power: 5 AA 
Weight: 1.5 lbs (receiver)
Dimensions: 7-1/2”L x 10-1/4”H x 7/8”W (receiver)