Specifications – Radio Shack 49-421A User Manual
Page 14
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SPECIFICATIONS
Power Source ............ 9V Alkaline Battery
Operation Voltage ................ 7V Minimum
Current Drain at 9V:
Standby Mode ....... 0.03 mA Nominal
(0.05 mA Maximum)
Alarm Sounding ........ 20 mA Nominal
(30 mA Maximum)
Alarm Frequency .............. 2.9 kHz
±
25%
Alarm Cycle Frequency ......... 1 Hz
±
25%
Operating Temperature ............. 32–122°F
(0–50°C)
Dimensions (HWD) ..... 5
5
/
32
Ч
2
5
/
16
Ч
1
17
/
32
(131
Ч
59
Ч
38 mm)
Weight ........................... 5.17 oz (146.6 g)
Specifications are typical; individual units
might vary. Specifications are subject to
change and improvement without notice.
49-421a.fm Page 14 Thursday, August 19, 1999 7:48 AM