Paradox Security Systems SR150 User Manual

The SR150 is a weatherproof, stand-alone, and fully supervised 
wireless siren with built-in strobe light and wireless transceiver.

The SR150 operates using 3 size “D” alkaline batteries. With 
normal use, the SR150 will function up to 3 years without the need 
to replace the batteries (battery life can be extended by using an 
optional AC or DC power supply). 

The SR150 uses 2-way wireless communication, which provides 
continuous supervision between the panel and siren with fast 
response to alarm signals of up to 4 seconds.

With its tough weatherproof construction, the SR150 will operate 
reliably from -30ºC to 50ºC (-22ºF to 122ºF) when using alkaline 
batteries or power supply. 

•

Internal protective plastic cover (see A below)

•

Built-in transceiver (see D below) 

•

100db wireless siren (see 1 below)

•

Integrated strobe light (see E below)

•

Weather-resistant design using a PC/ABS enclosure with 
UV protection and a silicone coated PCB

•

Fast alarm response time (4 seconds)

•

2.5 hour alarm display (strobe flashes every 4 seconds 
after bell cut-off)

•

Siren presence supervised by control panel 

•

Panel presence supervised by siren (activates siren and 
strobe for 5 minutes if communication is lost) 

•

Triple tamper protection for screw removal, cover removal, 
and removal from wall (see 5 and 6 below) 

•

Assign up to 4 sirens per control panel

•

Firmware upgradeable via 307USB (see 4 below)

•

Siren test mode 

1)

100dB siren

2)

Battery pack (3 size “D” alkaline batteries) with gold plated 
battery connections, or optional 3.6Vdc

3)

Power supply input (8-16Vac / 9-20Vdc)

4)

In-field firmware upgrade connector

5)

Dual-action tamper switch (detects when cover is removed 
and when unit is removed from wall)

6)

Tamper switch (detects screw removal)

A)  Internal protective plastic cover
B) Test 

switch

C)  Status and Signal Strength LEDs. Refer to LED Feedback 

on reverse for more information.

D)  Built-in wireless transceiver (433MHz or 868MHz) provides 

full supervision. See reverse side for more information. 

E) Strobe 

lights

Note: This equipment has been tested and found to comply with the limits for a Class B digital 
device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable pro-
tection against harmful interference in a residential installation. This equipment generates, uses and 
can radiate radio frequency energy and, if not installed and used in accordance with the instructions, 
may cause harmful interference to radio communications. However, there is no guarantee that inter-
ference will not occur in a particular installation. If this equipment does cause harmful interference to 
radio or television reception, which can be determined by turning the equipment off and on, the user 
is encouraged to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna. 
• Increase the separation between the equipment and receiver. 
• Connect the equipment into an outlet on a circuit different from that to which the receiver is 

connected. 

• Consult the dealer or an experienced radio/TV technician for help. 

Included Items:
• 1 strobe lens (available in red, blue, amber, or clear)
• 3 type “D” alkaline batteries

Required/Optional Items:
• Mounting hardware
• 8-16Vac, or 9-20Vdc external power supply (optional)

Compatibility:
• MG/SP series V4.0 (EVO coming soon)
• MG6130/MG6160 V3.0
• RTX3  V1.5
• K32LCD V1.3
• WinLoad V4.7 (with In-Field Upgrade Software V2.3) 
• For latest updates visit paradox.com

Red

Blue

Clear

Amber

1

2

3

6

C

E

D

5

4

A

B