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2 | DS820 and DS835 Series TriTech Motion Detectors
Supervised Microwave and PIR
Patented fully supervised microwave and PIR circuitry
provides single technology coverage in the event the
microwave subsystem fails.
Pet Immunity
The detector is able to distinguish between signals
caused by humans and signals caused by pets [one
dog up to 45 kg (100 lbs.), two dogs up to 27 kg
(60 lbs.), or up to ten cats]. This provides immunity to
false alarms while maintaining proper catch
performance of human targets.
Temperature Compensation
The sensor provides compensation at critical
temperatures.
Certifications and approvals
These detectors are designed to comply with the requirements of:
France
AFNOR
Europe
DS820‑A and DS835‑A comply with EN50131‑1,
Grade 2
Region
Certification
Europe
CE
DS820 and DS835: 1999/5/EC, ETS
300 440: 1996, ETS 300 683: 1997,
EN60950: 1992
Belgium
INCERT
DS820 and DS835: B-509-0014/c
USA
UL
DS820, DS835, DS835C: ANSR: Intru-
sion Detection Units (UL639)
FCC
DS820 and DS835: ESVDS730
ESVDS730
Italy
IMQ
DS835B-ITA: U0626
Canada
ULC
DS820 and DS835: S306-M89
IC
DS820 and DS835: 1249102781
Brazil
ANATEL
DS820 and DS835: 0667-03-1855
DS820‑B, DS820B‑FRA, DS835‑B,
DS835B‑FRA: NF, A2P
Installation/configuration notes
0 m
10 ft
0 ft
10 ft
0 ft
Top View
DS820 Broad Coverage 6 m x 6 m (20 ft x 20 ft)
0 m
3 ft
0 ft
0 ft
Side View
DS820 Broad Coverage 6 m x 6 m (20 ft x 20 ft)
0 m
17.5 ft
0 ft
17.5 ft
0 ft
Top View
DS835 Broad Coverage 11 m x 11 m (35 ft x 35 ft)
6 m
3 m
0 m
3 m
20 ft
6 m
1 m
0 m
20 ft
11 m
5.5 m
0 m
5.5 m
35 ft
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