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Top Supplier Cities : Shenzhen   Guangzhou   Dongguan  
Aug-17-13

Piezo Buzzer

$0.30
MOQ: Not Specified
 
Application:
Automotive alarms;
Toys, games machines etc;Conveyors, medical equipment;
Electrical appliances;
Automatic control devices;

Fire alarms, burglar alarms, gas detectors;
Data processing equipment.

Specifications:

Rated voltage (vp-p) 5
Operating voltage (vp-p) 1-30
Rated current (ma) 5 max.
Capacitance at 100hz 1v (pf) 70000 +/- 30%
Sound output at 10cm (db) 87 min.
Resonant frequency (hz) 900 +/- 150


Standard export carton
May-15-20
 
Model NO SR-825PHS
Operating voltage 3V lithium battery
Static current 8uA
Alarm current 35mA
Alarm output Sound & Flash alarm
Sound level 85dB/3m
Installation Ceiling mounted
Sensitivity 1.8%ft ±0.8%ft
Working environment -10~+50,(95%RH No congelation)
Dimension 95*41mm
Apr-25-21
 
130db personal alarm/woman alarm/elderly alarm
recharge battery
LED lighting
Mar-01-21
 
90dp wave earthquake alarm
Aug-01-19
 
WiFi smart home alarm kit all products based on WiFi network. No hub, easy installation, and secured for household security use.



This kit includes:

wifi door sensor *2pcs
wifi motion sensor*1pcs
wifi siren alarm*1pcs
wifi camera*1pcs
wireless Tuya wifi smart home alarm system kit
All Products in one APP.

Free APP, no montly fee.

Simple to install

Secured

Affordable



When sensors and alarms are triggered, you will receive notification on your phone.

And pictures and video taken by camera will keep records for you.

You can also view remotely on your APP.
329 Electronic Siren Alarm Suppliers
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Jul-04-19
 
REHENT Wireless WiFi Home Security Alarm System Smart Video Alarm Kit

Product Description
Simple, Security, Affordable. Always keep the one you loved, the thing you cared in peace of mind!
With the new REHOMY Wi-Fi HD Starter Kit Security, we present an ideal set for its ENTRAL LEVEL SECURITY SYSTEM.



REHOMY Security Kit is expandable. It is integrate and connect as many smart IoT devices like:wifi bulbs, wifi switches, wifi curtain motors and more to make it that much smarter.


REHOMY Security Kit is ideally suited to protect both private small private housed, flats, apartments, but also small offices or shops.



Smart Video Alarm Kit Features:



1. No Monthly Fees

No Hidden costs and no contracts

2. Easy to Fit

The REHOMY Kit with absolutely no wiring required and a quick and simple Wi-Fi set-up. No
need professional technical skills. Extremely easy installation for everyone.

3. Smartphone Notifications

Instant real time receive alerts and notifications if the alarm is triggered

4. Remote Live Viewing

You can check the remote live viewing, alarm snapshot, alarm recorded video via our friendly
APP once your mobile phone received triggered alarm notifications

5. Set Smart Scenario Scenes

Wi-Fi IP Camera, PIR Motion Sensor, Contact Sensors can be configured in the app to set smart scenario scenes with Siren Alarm. Once any products triggered, the siren alarm produces a powerful 100db siren to scares off intruders

6. Arming and Disarming

One bubon to set the Arming and Disarming via REHOMY Smart Life friendly APP

7. Control via Smartphone

Use your smartphone to control REHOMY Security Kit system anyDme, anywhere

8. Expandable

The REHOMY Security Kit can not only add more sensors, cameras, but also can add other Wi-
Fi productsallowing you to customize your systems depending your individual needs and security requirements.
May-09-19
 
"AV voltage: AC 90V-240V 50-60Hz
Battery voltage: 9V rechargeable battery (optional)
Working temperature: 0°C-50°C
Warm-up time: about 180S
Environmental humility: 10%-95%
Sound level: 85dB / m
Alarm density: 2500PPM (±1500PPM)
Alarm: vocals and LCD
Size: 112 Ã? 73 Ã? 42MM"
May-09-19
 
"AV voltage: AC 90V-240V 50-60Hz
Battery voltage: 9V rechargeable battery (optional)
Working temperature: 0°C-50°C
Warm-up time: about 180S
Ambient humidity: 10%-95%
Sound level: 85dB / m
Alarm concentration display
Carbon monoxide gas: 100PPM~999MM (±50PPM)
Combustible gas: 0.25%~2% LEL
(2,5500PPM~20,000PPM±1,500PPM)
Alarm: vocal alert and siren alarm"
May-09-19
 
"Power: DC 3x1.5V AAA battery
Sensitivity/alarm time: 30ppm, after 2 hours; 50 ppm, 60~90 minutes; 100 ppm, 10~40 minutes; 300 ppm, within 3 minutes
Quiescent current:
May-09-19
 
"Semiconductor sensor
Operating voltage: 85-265V AC;
Alarm output: Sound& LED Flash alarm;
Alarm level: 10% ±5% LEL.
adopted SCM from USA to ensure the stability,
Dimension: 118.5*82*43mm .
Execute criterion:GB15322;EN50194;UL1484
Can make 9V chargable back up battery "
Apr-11-19
 
"Power supply: DC 2 * 1.5 AA
Quiescent current:
Mar-28-19
 
AC POWER: 220VAC, 50 Hz.
BATTERY: Sealed lead-acid batteries only. Maximum charging circuit: 27.6VDC @ 0.8 amp for
normal flat charge. Maximum battery charger capacity: 18AH battery.
NOTE: Two 10AH batteries can be housed in the cabinet. Larger batteries require a separate
battery box.
Total DC24V system power: 3.0 amps.
Maximum current per NAC: 1.25 amps.
Maximum battery charging capability: 18 AH.
Resettable four-wire smoke detector power output.
Non-resettable power output.
Integral Form-A Alarm, Trouble and Supervisory relays, rated at: 2.0 amps @ 30 VDC
(resistive), 2.0 amps @ 30 VAC (resistive).
Mar-28-19
 
AC POWER: 220VAC, 50 Hz.
BATTERY: Sealed lead-acid batteries only. Maximum charging circuit: 27.6VDC @ 0.8 amp for
normal flat charge. Maximum battery charger capacity: 18AH battery.
NOTE: Two 10AH batteries can be housed in the cabinet. Larger batteries require a separate
battery box.
Total DC24V system power: 3.0 amps.
Maximum current per NAC: 1.25 amps.
Maximum battery charging capability: 18 AH.
Resettable four-wire smoke detector power output.
Non-resettable power output.
Integral Form-A Alarm, Trouble and Supervisory relays, rated at: 2.0 amps @ 30 VDC
(resistive), 2.0 amps @ 30 VAC (resistive).
Mar-28-19
 
"AC POWER: 220VAC, 50 Hz.
BATTERY: Sealed lead-acid batteries only. Maximum charging circuit: 27.6VDC @ 0.8 amp for
normal flat charge. Maximum battery charger capacity: 18AH battery.
NOTE: Two 10AH batteries can be housed in the cabinet. Larger batteries require a separate
battery box.
Total DC24V system power: 3.0 amps.
Maximum current per NAC: 1.25 amps.
Maximum battery charging capability: 18 AH.
Resettable four-wire smoke detector power output.
Non-resettable power output.
Integral Form-A Alarm, Trouble and Supervisory relays, rated at: 2.0 amps @ 30 VDC
(resistive), 2.0 amps @ 30 VAC (resistive)."
Mar-28-19
 
"AC POWER: 220VAC, 50 Hz.
BATTERY: Sealed lead-acid batteries only. Maximum charging circuit: 27.6VDC @ 0.8 amp for
normal flat charge. Maximum battery charger capacity: 18AH battery.
NOTE: Two 10AH batteries can be housed in the cabinet. Larger batteries require a separate
battery box.
Total DC24V system power: 3.0 amps.
Maximum current per NAC: 1.25 amps.
Maximum battery charging capability: 18 AH.
Resettable four-wire smoke detector power output.
Non-resettable power output.
Mar-28-19
 
AC POWER: 220VAC, 50 Hz.
BATTERY: Sealed lead-acid batteries only. Maximum charging circuit: 27.6VDC @ 0.8 amp for
normal flat charge. Maximum battery charger capacity: 18AH battery.
NOTE: Two 10AH batteries can be housed in the cabinet. Larger batteries require a separate
battery box.
Total DC24V system power: 3.0 amps.
Maximum current per NAC: 1.25 amps.
Maximum battery charging capability: 18 AH.
Resettable four-wire smoke detector power output.
Non-resettable power output.
Integral Form-A Alarm, Trouble and Supervisory relays, rated at: 2.0 amps @ 30 VDC
(resistive), 2.0 amps @ 30 VAC (resistive).
Mar-28-19
 
AC POWER: 220VAC, 50 Hz.
BATTERY: Sealed lead-acid batteries only. Maximum charging circuit: 27.6VDC @ 0.8 amp for
normal flat charge. Maximum battery charger capacity: 18AH battery.
NOTE: Two 10AH batteries can be housed in the cabinet. Larger batteries require a separate
battery box.
Total DC24V system power: 3.0 amps.
Maximum current per NAC: 1.25 amps.
Maximum battery charging capability: 18 AH.
Resettable four-wire smoke detector power output.
Non-resettable power output.
Mar-28-19
 
AC POWER: 220VAC, 50 Hz.
BATTERY: Sealed lead-acid batteries only. Maximum charging circuit: 27.6VDC @ 0.8 amp for
normal flat charge. Maximum battery charger capacity: 18AH battery.
NOTE: Two 10AH batteries can be housed in the cabinet. Larger batteries require a separate
battery box.
Total DC24V system power: 3.0 amps.
Maximum current per NAC: 1.25 amps.
Maximum battery charging capability: 18 AH.
Resettable four-wire smoke detector power output.
Non-resettable power output.
Integral Form-A Alarm, Trouble and Supervisory relays, rated at: 2.0 amps @ 30 VDC
(resistive), 2.0 amps @ 30 VAC (resistive).
Sep-29-06
 
Description:
Hot wire type sensor
-easy installation and maintenance

-loud sound signal of 85 db at alarm mode
-three-year limited warranty
If you would like to look at gas alarm (combustible gas alarm), please contact us, we will reply you at the first time. Our gas alarms have own perfect quality, steady performance, reasonable price; hope we could help you on business. Summer pan


Size:110mm*70mm*40mm
Weight:228g/pc
Package size:58.5cm*28.5cm*53.3cm
Jun-02-09
 
Home gas detector alarm description:
High stability sensor

Circuit for normally closed relay contacts (optional)
Circuit for normally opened relay contacts (optional)
Operating frequency: 433 or 315mhz (optional)
Size: 110 x 70 x 40mm
Weight: 228g/pieces .



Size:110mm*70mm*40mm; 228g/pc.
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