Detail LUTRON GS-400 Ultrasonic Transmitter :
- Frequency output : 40 KHz
- Oscillator Circuit : 640 KHz crystal time base and divided by 16
- Operating temperature ; 0 to 50°C (32 to 122°F)
- Operating humidity : Less than 80% R.H
- Power supply : DC 9V battery. 006P, MN1604 (PP3) or equivalent, alkaline or heavy duty battery
- Power consumption : Approx DC 7.5 mA
- Weight ; 122 g/ 0.027 LB (included battery)
- Size : 146x50x26 mm