Collecting, metering, wireless data communication, soft clock, ultra low
Power consumption, power control, broken line sensing, low cost and
Multifunction integrated in one module.
The module measures the pulse of gas meter, water meter, and quantity of heat meter and so on. It transmits the metering data and some related conditions to the concentrator randomly or timely.
Condition: User Interface:

Pin no SRWF-503 Descriptions Level Connected to Terminal Memo
1 GND Grounding of power supply Grounding of power supply
2 VCC Power supply DC +2.7~5.5V
3 RXD Serial data receiving end
4 TXD/TTL Serial data transmitting end
5 SGND Grounding of the signal
6 NC NC NC NC NC
7 A pulse sensor
8 B pulse sensor When reed pipe collects data , this pin does not use

9 RESET Reset control(input) TTL Reset signal Negative arteries
Technical parameter:


Serial number Item Parameter Note
1 Modulation mode GFSK/FSK
2 Channel amount 8channel User setting
3 Interface velocity 1200 bps
4 Interface mode UART TTL
5 Power supply +2.7~3.6VDC
6 Working temperature -25~80 'C
7 Working humidity 10%~90%(relative humidity without condensation)
8 Dimension 47mm x 24mm x 7mm


Features: The reliable transmission distance in the open environment >1000m
Unidirectional transmit, lower cost, smaller 47x26x7mm
The single module support single meter/double reed switch
Automatic measurement, automatic transmission measurement data
Work average current

Added: 20.08.2007 Offer viewed: 655 (hits)

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