Prestij Ltd.

Guanhua antenna



Vhf(150mhz), uhf(450mhz), dvb(150-800mhz), cdma(800mhz), gsm(900mhz), dcs(1800mhz), phs.Pcs(1900mhz), umts , gps , wlan, wiwax(1.9-5.8ghz)

CO Alarm
1.Electrochemical CO alarm,Fault signal warning
2.CE ROHS certified CO alarm
3.Test/Hush Button
4.LowBattery alarm.


PW-916 Stand-alone CO Alarm from PEASWAY
This CO alarm could be one of the most advanced designs in detection Carbon Monoxide .Battery powered models last long life (exceeds 3-year period and up to 5-years), It's the perfect choice for detecting dangerous CO poisoning.

Various power input can be manufactured according to customer's special request.

1.CO ALARM Sensor Type: Electrochemical
2. Non-radioactive technology for environmental friendly
3.Power Supply: 4.5V Battery(3*AA)
4.Standby Current: 10uA
5.Alarm Current: 23mA
6.Operation Temperature: 0¡ã- 50¡ã
7.Low battery warning
8.Self-Test Button to verify operation
9.With quick fix mounting bracket for easy installation
10.Silence function with dual led indicator
11.CO Sensitivity meets EN50291 or UL2034
12.Alarm Sound Level: >85dB at 10 feet (3m)
13.Easy to install, move and maintain this co alarm
14.Five years limited warranty for the CO-sensing

Operation Temperature
0 oC to 50 oC

Response Times
At 50 ppm, unit must alarm within 60 ~ 90 mins

At 100 ppm, unit must alarm within 10 ~ 40 mins

At 300 ppm, unit must alarm within 3 mins

Power Source
4.5V BATTERY

Standby Current
10uA

Alarm Current
23mA

Alarm Sound Level
85 decibels at 3 m

Detection Type
Electrochemical

Ambient Humidity
15% to 90% Relative Humidity.

Fire alarm bell
1.Base:aluminium
2.Fire alarm bell size:5/6" optional
3.Operating voltage:dc24v
4.High alarm sound


Fire alarm bell with good performance from peasway

Specifications:

1. Fire alarm bell:aluminium

2. Fire alarm bell size:5/6" optional

3. Operating voltage: 24v dc±15% (no pole)

4. Operating current: 23ma (24v dc)

5. Dimensions: ø127 x 56mm

6. Sound level: >100db (24v dc).

Smoke alarm
1.9V Battery smoke alarm
2.High sound 85dB(3m) smoke alarm
3.Test button
4.Low battery alarm

PW-507 Stand-alone photoelectric smoke alarm is under BSI approval, and can be calibrated into either UL, VDS, NF Standards. It features UL-approved Photoelectric sensing components with precise smoke detection. and long life (18 months) 9V battery operation (9V UltralifeLithium battery model for 10-year life is available too).

9V Power Supply, Meets CE, RoHS and EN14604

Specifications/Special Features:

Features:
Works on principle that infrared scatters on smoke surface
Probes smoke which is generated by incomplete combustion at initial stage of fire
Smoke detector consists of photoelectric system, signal processing identification and alarm circuit
Infrared scatters on surface of smoke when smoke enters darkroom of detector
Photoelectric diode receives scattered light and generates photoelectric signal current
Photoelectric signal generates alarm signal after being processed by identification circuit, accordingly purpose of alarming is achieved

Specifications:
Power supply: 9V DC Block battery/PP3
Quiescent current: 8¦ÌA
Alarm current:16mA
Alarm decibel: ¡Ý85dB/3m
Sensitivity standard: EN14604
Age limit of battery: 2 to 5years(It varies with different types of battery)
Temperature: -10 to +40 degrees Celsius
Low battery Alarm
High and stable sensitivity
5 years limited quality guarantee.

AC powered gas alarm
1.Semiconductor sensor
2.Power Supply: AC110/220
3.Comply EN50194
4.Fault signal, low battery warning,


Stand-alone GAS Alarm from PEASAWY.COM


1.Sensor Type: semiconductor sensor
2.Power Supply: 12-24VDC
3.Standby Current: 10uA
4.Alarm Current: 23mA
5.Operation Temperature: 0¡ã- 50¡ã
6.Low battery warning
7.Self-Test Button to verify operation
8.Silence function with dual led indicator
9.Sensitivity meets EN50194
10.Alarm Sound Level: >85dB at 10 feet (3m)
11.Easy to install, move and maintain.

Strobe Light and Horn
1.High alarm sound 100db;
2.Flashing: 2s;
3.Xenon light strobe light;
4.Strobe light and horn;


This Strobe Light and Horn is used on fire alarm system.



Strobe light and horn features:

1.High alarm sound 100db
2.Flashing: 2s
3.Xenon light strobe light
4.Strobe light and horn.

Strobe light and horn Specifications:

Operating Voltage: 24VDC
Operating Temperature: -10¡ã C to 50¡ã C
Operating Humidity: 0 to 95% RH, no condensation or icing
Average Current: 70mA
Flash Rate: ¡Ü 2 Second
Sound Output: ¡Ý130dB
Light Output: 1.2W
Light Life: >30000 flashes
Dimensions (L x W x H): 180 x 130 x 68mm.

Digital multimeters
DC V 400mV/4V/40V/400V/1000V
Basic accuracy 0.3%+5d
AC V 400mV/4V/40V/400V/700V
Basic accuracy 0.75%+10d
DC Current 40mA/400mA/4A/20A
Basic accuracy 1.2%+10d
AC Current 40mA/400mA/4A/20A
Basic accuracy 1.2%+10d
Resistance 400+/4K+/40K+/400K+/4M+/40M
Basic accuracy 0.5%+10d
Capacitance 40nF/400nF/4uF/40uF/100uF
Basic accuracy 2.0%
Data hold
Min/Max/Avg. Measurement
Peak Hold
Continuity test
Diode test
Low battery sign
Backlight
Signal output
Frequency Counter 0.5Hz-45MHz
Basic Accuracy 0.1%+5d
Automotive RPM 0-12000RPM
Duty Cycle 0-100%
Dwell 2/4/5/6/8/12
Logic Analyzer 2/4/5/6/8/12
Power Source 6 -1.5V AA or 6 -1.2V A

Hotel wall switch, room service inner switch

Product description:


• unique capacitive touch, no need to consider using life

• led backlighting instructions, convenient nighttime operations

• crystal panel design, high-grade generous

• abs fire retardant materials, improves using security



Features:


Press the "do not disturb" switch, touch screen "do not disturb" design backlighting be lighted, hints at please do not bother, touch the doorbell doesn't work, in the room the doorbell not ring.

Press "please namely cleaning" switch, touch screen "please namely cleaning" design backlighting be lighted, tip room to clean up, let the waiters very clearly know room to clean up the requests.

Press "please later" switch, touch screen "please later" design backlighting be lighted, tip visiting guests later.





Product description:


• unique capacitive touch, no need to consider using life

• led backlighting instructions, convenient nighttime operations

• crystal panel design, high-grade generous

• abs fire retardant materials, improves using security



Features:


Press the "do not disturb" switch, touch screen "do not disturb" design backlighting be lighted, hints at please do not bother, touch the doorbell doesn't work, in the room the doorbell not ring.

Press "please namely cleaning" switch, touch screen "please namely cleaning" design backlighting be lighted, tip room to clean up, let the waiters very clearly know room to clean up the requests.

Press "please later" switch, touch screen "please later" design backlighting be lighted, tip visiting guests later.

Model:S271
Name: GSM 3G M2M RTU (4D+I4AI+4DO+1TH+1USB)
The GSM 3G M2M RTU is a multi I/O port remote terminal unit. It is special for BTS monitoring, remote data acquisition, telemetrically, BTS access control and other applications. It supports voice communication, SMS, GPRS, 3G communications.
Mainly Features:

1. ARM® Cortex™-M4 32 Bit RISC Core, 168 MHz inside, RTOS system;

2. Widely Rated voltage range, 9~36VDC, Inbuilt large capacity rechargeable backup battery;

3. Large internal memory for save 1000 historical data, USB port for configuration and upgrade firmware;

4. 4 analog inputs, 12bits, supports 0-5V, 0-20mA, 4-20mA;

5. 4 Relay outputs, 5A/30VDC,5A/250VAC;

6. 4 digital inputs, dry contact or level input. One of the input can be used as counter;

7. 1 temperature probe input, 1 humidity transducer input;

8. 2 IP data centers, supports Modbus TCP,TCP/IP protocol over GPRS/3G network;

9. Automatically resend the data while communication failure, GPRS failure will alert by SMS text;

10. Supports remotely restart the RTU, and configure it by SMS commands remotely;

11. Supports over voltage protection and phase-reversal protection;

12. 10 SMS Alert and auto dial numbers, can program to receive specified alarm message.

14. 10 access control authorized numbers, can open the BTS door or turn on/off machine with a free charge call at the specified time.