Power failure alarm

Buy Wireless Power Off Detector AC 220V 380V Power Failure Outage Short Circuit Alarm Testing Sensor for R143.37

Features: 120dB big alarm voice. Stable quality. Power safe technology. Application:Solar water heater, pool, kitchen. Specification: ?ﾋFunction: power off alarm Voice: 120dB Power supply: 9V battery (not include), normally work about 12 months Size: 100*53*25mm Material: ABS Color: White Package Includes: 1 x Wireless Power Off Detector Details Pictures:

Buy YX850 Power Failure Automatic Switching Standby Battery Lithium Battery Module for R210.00

Buy 10pcs YX850 Power Failure Automatic Switching Standby Battery Lithium Battery Module 5V-48V Emergenc for R975.41

Buy 5pcs YX850 Power Failure Automatic Switching Standby Battery Lithium Battery for R535.24

Buy YX850 Power failure automatic switching standby lithium battery module 5V-48V for R99.95

Buy 3pcs CJMCU-226 INA226 Voltage Current Power Monitor Alarm Module 36V Bi-Directional I2C for R380.00

Features: Senses bus voltages from 0V ~ 36V High-side or low-side sensing Reports current, voltage, and power High accuracy: - 0.1% gain error(max) - 10uV offset(max) Configurable averaging options 12 programmable addresses Operates from 2.7V ~ 5.5V power supply 10-pin, DGS(VSSOP) package Click to know download manual Package included: 5 x Monitor Module

Features: Senses bus voltages from 0V ~ 36V High-side or low-side sensing Reports current, voltage, and power High accuracy: - 0.1% gain error(max) - 10uV offset(max) Configurable averaging options 12 programmable addresses Operates from 2.7V ~ 5.5V power supply 10-pin, DGS(VSSOP) package Click to know download manual Package included: 3 x Monitor Module

Power inverts 12v to 220w (w) Run TV, DSTV, Light for as long as your batteries last. Modified sine wave Output w Surge power w Output 220v 50Hz Input voltage 10v to 15v Low voltage alarm between 10.4v and 11v Cut off below 10.3v w Rw R700 Can deliver Cape town area for R100 and Free delivery Northern Suburbs. You are welcome to collect. Batteries available, Deep cycle 105AH @ R Battery boxes available from R250 Contact: Pure sine wave inverters available, w w w and w please contact me for price and more info.

  > DC Input  : DC 12V (DC11-15V)                      : DC 24V (DC22-30V)  > AC Output: AC 110B +/- 10% / AC 220V +/- 10% > Output Frequency: 60 +/- 3Hz / 50 +/- 3Hz  > Use Output (If Have): DC 5V (500mA other)  > Continuous Power: 3000 Watt  > Efficiency: >80% > No Load Current: 12V Input:                                  : 24V Input: > Input Low Voltage Alarm: 12V Input: DC 10.2 - 10.8V                                                 : 24V Input: DC 20.4 -21.6V  > Input Low Voltage shut down: 12V Input: DC 9.2 - 9.8V                                                           : 24V Input: DC 18.4 - - 19.6V > Input Over Voltage shut down: 12V Input: DC 15 - 16V                                                           : 24V Input: DC 30 - 32V  > The Best Working Temerature: 5 - 35 C  > Cooling Method: FAN  > Accessories: Battery clip cable, Earth connect 

LCD GSM + PSTN Dual Network Alarm kit with 99 Wireless and 4 wired Zones. Note: additional sensors can be bought separately System features: Digital clock display with two group alarm function, time optional.   Support GSM mobile network and PSTN (Telkom line), provide redundancy for extra stability. Allow up to 99 wireless defense zones and 4 wired zones. Touch keypad Each can be defined as one of the 8 zone types including NORMAL, STAY, INTELLIGENT, EMERGENCY, CLOSED, HELP SENIOR, WELCOME and CHIME. Four sets of scheduled arm/disarmed function, each time  you can select the included period of time and different defense zone, eliminating of need of the manual procedure, realizing the beauty of automatic controls. Support configuration via keypad, phone (handset) or SMS messages to System 6 group voice alarm phone number for alert calling, 3 group phone number for help senior, 6 group for SMS messaging, numbers saved inside EEPROM without lost upon power failure. Different zones can dial a pre-set telephone number. Support ISD automatic voice mailbox for playback message upon alert. Maximum length of voice message is 10 seconds. Telephone (phone) long-distance telephone control for arming, disarming, monitoring, remote announcement. 1 Set of normally open signal outputs, relay linkage output, home appliances remote control can be realized. Maximum support of 150 remote controls and 150 sensors. Unique black box features, you can display most recent 72 disarmed records and 102 recent alarm recording. Accurately shows the alarm time and control code. Built-in Ni-Hi rechargeable battery and automatically switchable upon power failure, and notification will be sent via SMS. Panel integrated with quad-band GSM/GPRS industrial graded module, stable and reliable. Alarm uses a Sim card (not included). Important: please ensure you have a good 3G signal as it is required for this unit to work properly (GSM part). No refund will be given if your GSM signal is weak. What's Included: 1 x main Colour LCD alarm panel (433Mhz) 1 x wireless infrared detector (433Mhz) 1 x wireless magnetic door contact (433Mhz) 2 x Remotes controls (433Mhz) 1 x mini siren 1 x power adaptor (EU plug) 1 x user manual (English)  

Philips alarm clock Radio (AJ3231) Description: Wake up to sounds from your favorite radio station or a buzzer. Simply set the alarm on your Philips Clock radio to wake you with the radio station you last listened to or choose to wake up with a buzzer sound. When the wake up time is reached, your Philips Clock radio will automatically turn on that radio station or trigger the buzzer to sound. Wake up to your favorite radio tune or a buzzerDual alarm to wake you and your partner at different timesRepeat alarm for additional snoozeFM/MW tuner for radio enjoymentSleep timer for easy falling asleep to your favorite musicMP3 Link for portable music playbackEasy to use adjustable display brightness for comfort viewingBattery back-up ensures memory of time during power failure Specifications Output power: 100 mW RMS Antenna: MW antenna, FM antenna Alarms: radio alarm, buzzer alarm, 24 hour alarm reset, repeat alarm (snooze) Dimensionsweight: 0.9 kgdepth: 61 mmheight: 140 mmwidth: 140 mm PowerBattery type: 6F22 9VBattery voltage: 9 VNumber of batteries: 1Power type: AC Input. 1 Year Warranty.

Description:   Mini UPS is a DC uninterruptible power supply which can storage power, it is designed to provide emergency power backup to all kinds of DC power equipments such as routers, modems, set-top boxes, VOIP phone systems, surveillance systems, alarm systems and many critical telecom equipments. It can provide hours of operation during power failure at a low price vs a traditional UPS. Our Mini UPS has perfectly overcharge, over discharge, overcurrent and short circuit protection function. Specification: Matching UPS Rating Output Voltage Rating: 12V±5% Input Current Rating: 2A Power Rating: 24W Adaptor Ripple: 1% Output Socket: 5.5 x 2.5mm Transfer Time: 6mS (ref) Battery data Battery data Battery type: Li-ion Battery pack voltage: 11.1V Battery Protection: Battery Protection IC & MCU Monitoring Dual Protection Battery capacity: 11.1V 2000mAh Recharge time: 8hrs to 90% (2000mAh)   LED Status Adaptor Work: Red LED Light UPS Work: Green LED Light Battery Pack Charging: Blue LED Trotting Horse Lamp Battery Pack Charge: Complete All Blue LED OFF Battery Pack Discharging: Blue LED Flash Battery Pack Low Power: Blue LED Quick Flash 0-25% Electricity: LED1 ON 25-50% Electricity: LED1 & LED2 ON 50-75% Electricity: LED1 & LED2 & LED3 ON 75-100% Electricity: LED1 & LED2 & LED3 & LED4 ON   Key Press 3-5S: Enter Sleep Mode Press 1S: Display battery capacity Others Operating temperature: 0-50℃ Operating Humidity: 5~90% RH Backup time: 2 to 10 hours

Buy 13 LED Rechargeable Home Emergency Light Automatic Power Failure Outage Lamp for R265.09