
Intrusion Alarm Systems | DS720i Long Range TriTech PIR Detector (10.525 GHz)
DS720i Long Range TriTech PIR Detector
(10.525 GHz)
www.boschsecurity.com
u Supervised microwave and PIR
u Anti-masking with spray detect
The wall or ceiling mount DS720i TriTech® PIR and
Microwave Detector covers up to 91 m (300 ft).
Motion Monitor and Anti-masking protection provides
coverage integrity. Field replaceable mirrored optics
and three different coverage patterns provide
installation flexibility.
Functions
Alarm Memory
• Indicates stored alarms for use in multiple unit
applications by latching the alarm LED.
• Controlled by a switched voltage from the control
panel.
Signal Processing
Uses passive infrared and microwave technologies to
provide an alarm condition when both fields of
protection are simultaneously activated. Alarm signals
must meet the signaling requirements of both
technologies to activate an alarm. Adjustable PIR and
microwave sensitivity.
u Motion monitor
u Motion Analyzer II
u Field-changeable mirrored optics
PIR Signal Processing
Uses Motion Analyzer II multiple thresholds and timing
windows to analyze timing, amplitude, duration, and
polarity of signals to make an alarm decision. Will not
alarm on extreme levels of thermal and illumination
disturbances caused by heaters and air conditioners,
hot and cold drafts, sunlight, lightning, and moving
headlights. Two sensitivity settings are provided.
Microwave Signal
Uses pattern recognition circuitry to identify and
ignore repetitive false alarm sources. Adaptive
processing adjusts to background disturbances to
reduce false alarms while maintaining catch
performance.
Test Features
High-efficiency walk test LED is visible throughout the
coverage pattern (reducing installation time). LED
flashes to indicate a trouble condition. Internal noise
voltage test pins use standard analog meter to provide
precise pattern location and background disturbance
evaluation. Separate test LEDs for PIR and microwave
activation. Alarm LED can be controlled remotely.

0 m
0 m
27 m
10.5 m
10.5 m
90 ft
0 ft
0 ft
35 ft
35 ft
0 m
0 m
27 m
0 ft
90 ft
7.5 ft
0 ft
2.3 m
0 m
0 m
91 m
300 ft
0 ft
2.3 m
2.3 m
7.5 ft
7.5 ft
0 ft
91 m
0 m
0 m
3 m
0 ft 300 ft
10 ft
0 ft
0 m
0 m
37 m
3.8 m
3.8 m
120 ft
0 ft
0 ft
12.5 ft
12.5 ft
0 m
0 m
37 m
0 ft
0 ft
7.5 ft
2.3 m
120 ft
2 | DS720i Long Range TriTech PIR Detector (10.525 GHz)
Supervised Microwave and PIR
Patented fully supervised microwave and PIR circuitry
provides single technology coverage in the event the
microwave subsystem fails. Use the memory circuit to
force a self-test at anytime.
Anti-masking With Spray Detect
Selectable to provide a microwave supervision trouble
signal if microwave reflective material (metal, wood,
plastics) is placed within 30.5 cm (1 ft) of the
detector. IR Anti-masking feature detects objects
placed to cover the detector or sprayed on the lens
area. Anti-mask sensitivity is selectable, and Anti-mask
activation can be delayed to reduce false alarms.
Motion Monitor
Switch-selectable four or thirty day Motion Monitor
supervision timers provide the detector with the ability
to verify that there is a clear view of the protection
area and that it has not been blocked.
Certifications and approvals
Side View
Standard Long Range Coverage
91 m x 4.6 m (300 ft x 15 ft); the long range coverage
mirror (OA300) is installed.
Top View
Region Certification
Poland CNBOP
USA UL ANSR: Intrusion Detection Units
(UL639)
FCC ESVDS720I
China CCC 2004031901000037
Brazil ANATEL 0844-03-1855
Singapore iDA LPREQ-S0156-2004
Installation/configuration notes
Standard Broad Coverage
27 m x 21 m (90 ft x 70 ft); the standard broad
coverage mirror (OA90) is included.
Side View
Optional Long Range Coverage
37 m x 7.6 m (120 ft x 25 ft); the long range coverage
mirror (OA120) is installed.
Top View
Side View
Parts included
Quantity Component
1 B334 Swivel Mount Bracket
1 Standard Broad Coverage Mirror, labeled OA90
1 Long Range Coverage Mirror, labeled OA300
Top View
Notice
The Long Range Coverage Mirror is installed.

3 | DS720i Long Range TriTech PIR Detector (10.525 GHz)
Technical specifications
Enclosure Design
Dimensions: 20.8 cm x 19.5 cm x 13 cm
(8 in. x 7.5 in. x 5 in.)
Material: High impact ABS plastic enclosure
Properties: With steel grid over optics area houses a removable
circuit board and minor holder assembly.
Environmental Considerations
Operating
Temperature:
Radio
Frequency
Interference
(RFI)
Immunity:
-29°C to +49°C (-20°F to +120°F)
For UL Certificated installations, 0°C to +49°C (+32°F
to +120°F)
No alarm or setup on frequencies in the range from
26 MHz to 950 MHz at 50 V/m.
Mounting
Height: 3.0 m (10 ft) maximum
Location: Mounts directly to ceiling or to standard 10.2 cm
(4 in.) octagonal electrical box.
Accessories
OA120‑2 Mirror
A 36.5 m (120 ft) optical array module. Shipped in
packages of two.
Order number OA120-2
TC6000 Test Cord
Test cord for connecting a compatible detector’s test
pins to a voltmeter. It is 4.6 m (15 ft) long.
Order number TC6000
Outputs
Alarm: Form C reed relay rated at 3.0 W, 125 mA at 28 VDC for
resistive loads and protected by a 4.7 Ω, 0.5 W resistor in
the common C leg.
Tamper: Normally-closed tamper switch. Contacts rated at
28 VDC, 125 mA maximum.
Trouble: Normally-closed dry contacts rated at 28 VDC, 125 mA
maximum. Open during trouble.
Power Requirements
Current Draw: 32 mA nominal at 12 VDC; up to 60 mA during walk
test, stored alarm, or trouble conditions.
Voltage: 9 VDC to 15 VDC
Trademarks
TriTech® is a registered trademark of Bosch Security Systems, Inc. in the
United States.
Ordering information
DS720i Long Range TriTech PIR Detector (10.525 GHz)
Operates at 10.525 GHz. Provides 27 m x 21 m (90 ft x
70 ft) standard broad coverage and 91 m x 4.6 m (300
ft x 15 ft) long range coverage. Provides anti-masking
with spray detect, motion monitor, and Motion
Analyzer II signal processing.
Order number DS720i

4 | DS720i Long Range TriTech PIR Detector (10.525 GHz)
Represented by:
Americas: Europe, Middle East, Africa: Asia-Pacific: China: America Latina:
Bosch Security Systems, Inc.
130 Perinton Parkway
Fairport, New York, 14450, USA
Phone: +1 800 289 0096
Fax: +1 585 223 9180
security.sales@us.bosch.com
www.boschsecurity.us
Bosch Security Systems B.V.
P.O. Box 80002
5617 BA Eindhoven, The Netherlands
Phone: + 31 40 2577 284
Fax: +31 40 2577 330
emea.securitysystems@bosch.com
www.boschsecurity.com
Robert Bosch (SEA) Pte Ltd, Security
Systems
11 Bishan Street 21
Singapore 573943
Phone: +65 6571 2808
Fax: +65 6571 2699
apr.securitysystems@bosch.com
www.boschsecurity.asia
Bosch (Shanghai) Security Systems Ltd.
203 Building, No. 333 Fuquan Road
North IBP
Changning District, Shanghai
200335 China
Phone +86 21 22181111
Fax: +86 21 22182398
www.boschsecurity.com.cn
Robert Bosch Ltda Security Systems Division
Via Anhanguera, Km 98
CEP 13065-900
Campinas, Sao Paulo, Brazil
Phone: +55 19 2103 2860
Fax: +55 19 2103 2862
latam.boschsecurity@bosch.com
www.boschsecurity.com
© Bosch Security Systems 2016 | Data subject to change without notice
2632439435 | en, V2, 20. Jan 2016