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SPECIFICATIONS
Battery Life:
7 years in SLOW mode (50 triggers/day)
4 years in FAST mode (50 triggers/day)
(At least 10 years in storage with battery switched off.)
Transmitter power: 1mW into 50 ohms.
Typical free-space ranges using Scantronic 4618 receiver.
At least 300m, using spring mini-helical (supplied).
At least 600m, using small Yagi.
Aerial Types: Spring mini-helical (supplied) or any external 50 ohm aerial.
Input Connections: Inputs A-B-C-D, will accept 25 metres of multi-core, security-
type cable and can tolerate series resistances of up to 500 ohms.
Frequency: 173.225 MHz.
Details of other country frequencies are available on request.
Approval: DTI approved to specifications MPT1328/44,
approval no. RTD 3984.
Size: 90mm x 63mm.
Operating and storage temperatures: 0 deg.C to 50 deg.C
BATTERY ON/OFF SWITCH
SHOWN IN ON POSITION
6
BUZZER
B
A
T
T
E
R
Y
Part No. 495940 Issue 2
GND
I/PC
(CON)
+VE
GND
I/PB
+VE
GND
I/PA
+VE
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