Retekess T117 Pager System Wireless Call Button system SVBONY Dovetail Clamp 16K¢F3E@25KHz 141K¢F3E@20KHz

16K¢F3E@25KHz 141K¢F3E@20KHz

Using narrowband filters doesn’t necessarily require longer exposure times

and the receiving signal is stable

Outdoor seating

Electronically Assisted Astronomy (EAA)

Retekess T117 Pager System Wireless Call Button system SVBONY Dovetail Clamp 16K¢F3E@25KHz 141K¢F3E@20KHzProduct Description Retekess Transmitter button is a tool to provide customers to call the waiter; wireless call system effectively solve the problem of customer queuing consumption,for restaurants, hotels, Banks and other service consumption places Working temperature: 20 Celsius to 55 Celsius Size: 64 x 61 x 15mm 2. 5 x 2. 4 x 0. 6 in Weight: 27g 1oz Package 5x Call Button 5x Sticker Chip design Pager working chip with ASK (AM) modulation mode