1. Henan Yuding Electronics Corp., Ltd
Address： No. 11 Changchun Road, New & High-Tech Development District, Zhengzhou,450001, Henan, China.
Tel：0086-371-56972259 Fax：0086-371-56972274 website: http://www.yuding-china.com
E-mail: bella@yuding-china.com Skype: yuding_overseas04
Model F21-6S-TX
Size 16.4*7.5*4.5(cm)
Weight About 331g（without Batteries）
Housing material Glass fiber-reinforced nylon
Protection Degree IP65
Working
Temperature
-35°C ~ +85°C(Regardless of the
battery temperature tolerance)
TX power Supply Two 1.5 volts Batteries(AA Size)
Number of
buttons
6 single-step buttons, 1 stop, 1 start/
Alarm Button.
Button Marking Arrow tip, or Chinese, or English.
Security Key Our products have the Security Key
Security Code
(Unique code)
Over 4 billion unique ID codes
Voltage Detection
When the volts is under 2.2V,
TX Red LED will flash slowly;
When the volts is under 1.8V,
The TX is unable to start.
Transmission
frequency
310.0325-331.165MHz
Channel
Spacing
0.2675MHz
Channel 80CH
Transmit power ≦5DBm
Fault Detection
TX Red LED is flashing quickly:
1.Not in the correct way to start;
2.One of the push button is jammed.
3.Not installing the key switch, or magnetic switch failure.
TX LED will flash slowly:
1. The power is not enough, Please change the battery.

2. Henan Yuding Electronics Corp., Ltd
Address： No. 11 Changchun Road, New & High-Tech Development District, Zhengzhou,450001, Henan, China.
Tel：0086-371-56972259 Fax：0086-371-56972274 website: http://www.yuding-china.com
E-mail: bella@yuding-china.com Skype: yuding_overseas04
Model F21-6S-RX
Size 18.7*8.6*7.9cm
Weight About 624g
Housing material Glass fiber-reinforced nylon
Protection Degree IP65
Wiring Diagram English
-35°C ~ +85°C
Working
Temperature
Power supply AC380V,AC36V,AC220V,AC110V,AC48V,AC24V,AC12V/DC12V,AC380V/AC220V(50-60Hz)
Relay number
6 Relays control functions,1 relay control EMS and 1 relay
reserve
Relay capacity
5Amp Omniseal Relays (AC250V/10A Relays ,10Amp
fuse)
Security Code
Over 4 billion unique ID codes
Receiving
frequency
310.0325-331.165MHz
Channel
Spacing
0.2675MHz
Channel 80CH
Receiver
sensitivity
≧-120DBm
Interface Aviation connector