Four DC 3V Wireless Reminders and a RF Remote Control (Model: 0020171) 1 Channel Application:You can use this transmitter

Application:You can use this transmitter and the receiver to remotely control the AC or DC devices by the normally open contact of another device

solenoid valve close)

It can long range remote control DC and AC equipments

Two modules form a transmitter receiver system

Four DC 3V Wireless Reminders and a RF Remote Control (Model: 0020171) 1 Channel Application:You can use this transmitterPackage Include: 4 x Receiver: Z 06 (Vibration & Beep mode)1 x Transmitter: C 4 or CP 4 or CB 41 x User manual Application: It can long range calling reminding person with hearing impairment, or pet training. Feature: Wireless control. You can use the transmitter (remote control) from anywhere within a reliable distance to control the receiver (wireless vibrator and beeper) to vibrate and beep. The wireless signal can pass through walls, floors and