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Wireless door chime has 50m receiving range
www.haohwa.com

Taiwan – The WD-3604 wireless door chime from Hsien Long Co. Ltd has an ABS receiver and transmitter that works on a digital code transmitting-receiving system. The product is FCC-approved.
The 70x11x29mm receiver operates on two AA batteries. It has a frequency response of 318MHz and an effective receiving range of 50m. Standby current is 0.4mA while starting current is 90mA. The transmitter operates on one R23/12V battery and consumes 2mA power when triggered. It measures 40x70x19mm and has a push switch and LED.

Minimum order is 1,000 sets and delivery is 35 days after receipt of an L/C.