Item(s): Watt/Volt Meter with Electricity/Power Consumption Calculator

Package includes: Multifunctional Wattmeter with english language manual in retail box.

Price : RM$87
Shipping & handling : $6 West Malaysia / $9 East Malaysia

Dealing method: Poslaju

Warranty: 1 year local warranty

Ever wonder which electrical appliance in your house is the most power hungry? Just plug it into the Multifunctional Wattmeter and you will know the answer in seconds. With these easy to use device, you no longer need to pay high electrical bills by identifying & eliminating those old & inefficient electrical appliances.

Kindly refer to this link for more usage examples : Watt Meter with TNB Bill Calculator, Post #29



Features :
　　1. Measure supply voltage in real-time.
　　2. Measure appliances power usage in real-time (0~3000W)
　　3. Show accumulated power consumption (0~9999kWh)
　　4. Calculate the cost of energy according to the preset price of energy (0~$9999); price of energy can be preset to the local price by users.
　　　　Two ways for calculating power consumption and power cost: electricity consumption and electricity cost in single operation period and
　　　　accumulated electricity consumption and electricity cost in all operation periods; can be manually cleared to 0.
　　5. Operation condition monitor: The indicator light will flicker when the real-time ratio of operation condition reaches its alarm point.
　　　　Ratio of operation condition is the ratio between accumulated operation time per hour (running power is over preset standby power)
　　　　and 1 hour. Alarm point for ratio of operation condition and standby power can be preset.
　　6. Show the operation time of appliances (0~24h~9999d). Two ways for calculating operation time: time in single operation period and
　　　　accumulated time in all operation periods; can be manually cleared into 0.

Working conditions :
　　Voltage : 160~280V AC, 50Hz
　　Peak load : 15A
　　Temperature : -10~60°C
　　Humidity : 10~95% RH




Kindly refer to the topic below for other measuring equipments & accessories such as handy luggage weighting scale, battery tester, thermometer for human :
[WTS] Measuring Equipments & Accessories

This post has been edited by vMart@lowyat: Aug 24 2012, 12:26 AM

Reserved

Reserved

Reserved

D you have kill a watt brand

We are terribly sorry that we do not have Kill-A-Watt brand as we have difficulty sourcing for the 240v version. Anyway, our watt meter comes with all Kill-A-Watt features plus backlighted LCD display and 3 months 1 to 1 exchange warranty coverage. We are the distributor of the watt meter we are selling.

Kindly check your pm inbox for pricing & discount!

No sirim sticker?

Sorry, no SIRIM sticker. The cost of SIRIM inspection will push the price of the wattmeter to well over $120.
Kindly refer to your pm inbox for pricing & discount.

Pm me the price

item received, thanks

Hope that you can make use of the Multifunctional Watt Meter to help you to identify and eliminate those high power electrical appliances and saves on electrical bills.

pm me best price 2 units ship to sunway?

Kindly check your pm inbox for pricing & discount on bulk purchase.

pm me your best price... postage to bricksfield, KL

Do you have self collect or meet up collection surrounding Subang, USJ?

We are located in Segamat Johor and we are terribly sorry that we do not provide COD service. Kindly refer to your pm inbox for pricing & discount on bulk purchase.

Interested, but what is the accuracy specs of the unit? Any test photos? With a simple device like a desk lamp it should be easy to test if accurate.

Like this?


The above way of gauging the accuracy of a measuring equipment is improper. Kindly refer to the 1st post for accuracy test.

This post has been edited by vMart@lowyat: Oct 5 2011, 03:58 PM

Still available? Pls PM me. Thanks.

Yes kindly refer to your pm inbox for details on pricing & discount on bulk purchase.

Can it be used to calculate the amount of electricity used for an airconditioner for a period of time, say one month?

Yes it can be setup to calculate the electricity cost of an air-con. However since air-con are high current electrical appliance, make sure the location of the power outlet get sufficient air flow.
Kindly refer to your pm inbox for pricing & discount on bulk purchase.

pm me best price

Hi, Please refer PM inbox for pricing details. Thanks.

item received.. thank you dude.

pm me the best price + delivery .. thx

Hi, Please refer PM inbox for pricing details. Thanks.

[

[/quote]

lu sin kar lan ar...

Power (W) is less than or equal to VA, bcoz power=voltage X current X power factor.

from ur testing, power= 129.8W
Voltage X Current= 129.65 VA

shows that there is inconsistency in ur instruments d.

dunno about AC power calculation, dun talk rubbish here. the measurement is all OUT!!

is ur instrument calibrated? dont mind show us the calibration cert?

Simple experimental test setups :
System A = Computer with 50% efficiency power supply unit
System A = Computer with 80% efficiency power supply unit

Calculation using Apparent Power (Pavg = Vrms x Arms)
System A = 227v x 0.57A x 10hour = 1.294kWh
System B = 227v x 0.50A x 10hour = 1.135kWh

Calculation using Real Power (power=voltage X current X power factor)
System A = 227v x 0.57A x 0.5 x 10hour = 0.649kWh
System B = 227v x 0.50A x 0.8 x 10hour = 0.908kWh

From the examples above, it shows that if TNB is using Apparent Power to calculate & charge it's customers, those with higher efficiency electrical appliances are paying less than customers with lower efficiency electrical appliances. In contrast, those with higher efficiency electrical appliances will have to pay more if Real Power is used to calculate TNB bills.
As you might know that computer power supplies with higher efficiency are much more expensive that those of lower efficiency and this is the same for electrical appliances such as those with inverter technologies are much more expensive as well. So if Apparent power is used to calculate TNB bills, it will be silly to spend extra on getting higher efficient models as you will be paying more for monthly electrical bills.
If you or any electrical engineers with experience or knowledge on the design of electrical meters used by TNB for residential and industrial can provide some details/explanations on 'spending more money on higher efficiency products will result in paying more for electrical bills' we will gladly remove the accuracy test as it will be deem improper & misleading.

In any case, the Multifunctional Watt meter is not meant for professional who require utmost accuracy in his/her equipment or tools as professional tools does not comes in $100 price range. It is a device market for it's Plug and Play, easy and safe to use by user of all age and technical knowledge. Below are examples of usages :

Usage Example 1 - Determine which water boiler is greener before purchasing
1. At your parents/relatives/friends house, plug-in the wattmeter & write down the power usage when it is boiling the water.
2. Switch the wattmeter to total power consumption mode (kWh) & write down the numbers after 12/24 hours.
3. Test again with other brand/model of water boiler.
4. You will be surprise that the brand/model with a lower max power (watt) indicated by the manufacturer does not always translate to lower electrical bill. The frequency of the re-heating is crucial too.

Usage Example 2 - Determine when to service your air-con
1. Plug your air-con into the wattmeter when it is new or newly serviced.
2. Write down the max power consumption & the temperature setting on the air-con.
3. Plug your air-con into the wattmeter again after a few months.
4. If the power consumption increase at the same temperature setting, it is time to service your air-con.

Usage Example 3 - Determine the electricity use by your tenant.
1. If you rent out a room or sharing a rented house, it is wise to charge the electrical bills according to usage.
2. Plug in the air-con or other electrical appliances (1 appliance for 1 wattmeter) into the wattmeter in the rented room.
3. Switch the wattmeter into total power consumption or power consumption cost mode.
4. Charge the tenant periodically base on his/her usage.


For those who require utmost accuracy in their tools, we would like to recommend Uni-T UT231/UT233 (without calibration certificate) or Fluke 345 (with calibration certificate). Both models can be use to measure Active Power, Apparent Power, Reactive Power, Power Factor and many more. Kindly send us a pm for pricing. Below are links to official product page :

Official web page : UT231 (Single phase with PC interfacing and temperature measuring features)
Official web page : UT233 (Three phase with PC interfacing feature)
Official web page : Fluke 345


Lastly, we sincerely appreciate your efforts on sharing your knowledge but your vulgarity & rude attitude are unwelcome.
If you are going to rant, at least buy a unit to test it with your certified calibrated equipment & send us the result. We will gladly replace our simple test result with yours & give you the credit that you deserves. In the future, kindly stay cool & refrain from using vulgarity (in any language or dialect) in your choice of words if you are to post in our topics.

This post has been edited by vMart@lowyat: Nov 1 2011, 02:26 PM

Btw, we need to say thanks to endau02. If not you wont share a lot knowlwdge and tips here.

free bump here

Thanks for the free bump.
You have no idea how stunned I was.... imagine this :-
A lady comes in the morning & turn on her computer. See an email notification that someone reply in 1 of the sales topic that she's in charged. Open the link & greeted by an unkind message.... relay the issue to the tech, tech says he is busy evaluating new product samples.... sit there don't know what to do for days until the tech is free to resolve the situation and finally put an end to her torment.

I m interest on it, PM the detail please.

Hi, please refer to PM inbox for pricing details. Thanks.

im interested to purchase a unit. do you do COD?

Ordered one unit. Very fast response. Made payment transfer, items shipped out the next day and I received it the following day with my building management office. I know PosLaju always comes when I cam not around...

Sometimes, I think ordering online it is even faster than COD bcos COD still need to find free time, drive to the location, parking/tolls/petrols and then drive back ...

A very short review of the product after a few hours of usage and questions about the product..

- For my unit, the money ($) sign is in UK pound sign... no big issue...

- User Manual is a little confusing even for people like me that actually read user manuals... ( I know most people hate reading it .. )

Those functions short form are a bit cryptic, but I figure it out after a while..
AV - Voltmeter
EC - Electricity Consumption
PC - Power Cost
PW - Curent power ( ON this screen most of the time )
RT - Ratio ( no idea what is this )


Questions on the Setup screen ?

1. What is standby power ??

2. What is ratio of operation condition ?


I made a few measurements around the house... these are average over a few minutes..

42" Plasma - 150W
Kettle (takes only 3mins to boil 1.75l water) - 2500W
Fan - 36W
Compact FL - 12W
DIY nightlight - 3 LED powered by 5V Nokia charger running 24hrs - 0.9W

Desktop PC , using a 500W Xigmatek PSU
standby - 1.2W
CPU 0% - 75W
CPU 50% when playing facebook games - 110W
CPU 100% - 135W
22" LCD Monitor - 24W

Macbook Pro 13"
0% - 22W
100% - 37W

ordered a unit, m2u-ed, emailed the details and got the item shipped on tuesday via pos laju, received on thursday. not sure why POS LAJU was unable to deliver next day since i am staying in a major town in KL.

product packaging is good. saw some chinese wordings on the box, checked the product and user manual, can't find the information on where it is made. perhaps it's my oversight, can someone point out to me? been fiddling with the product for the last couple of hours. so far so good. manual is in english, satisfactory and understandable (some manuals in english are ridicules due to the direct translation from chinese to english)

thumbs up for the seller, excellent sales and customer service follow up.

Trusted and Honest Seller, very nice provide receipt and warranty.
Good responsibility solve minor issue in 1day that parcel stuck at Poslaju.

Product Feedback:
This is a rare gadget. After survey this gadget at KL around 3weeks only know nobody sell this gadget.
It is China made. The meter quality quite nice but the box not attract people.
So, if seller wouldn't post some sample, nobody know it is rare and useful.



The picture show are connecting to
-home theater 5.1c 30-80W
-desktop PC 170-220W
-nokia charger 1W

I m a newbie for electric calculation stuff but,
the accurate Watt for this gadget is 99% correct.
The watt meter will keep fluctuate if u connect like speaker, PC.
It won't stable down for those who don't know about this.
The most important for me to use this gadget are to read kWH and Watt.

Thanks provide a rare product and service.
Keep it up and have a nice day.

The meter will measure the current drawn by the PC, so if the CPU is high, it will draw more current... and these days the CPU hv power saving mode, so when idle, the CPU will lower the speed/GHz to save power and run the CPU much cooler...

Home Theater/amp is producing sound and driving the speakers, so if sound have more bass, *boom* *boom*, it will use more power ... haha

@ stan001
I am told that the manufacturer programmed the watt meter currency symbols according to the plug configuration :
US : $
CN : 元
EU : €
UK : £

As for the 'Standby power' & 'Ratio' settings :
Standby power : A threshold where the machine is in sleep mode or non-active mode.
Ratio : Is the ratio between the active and the standby mode of the machine that is plugged into the wattmeter.

Btw nice short review i must say.

Lastly, thanks everybody for the feedback and for sharing your knowledge and tips.

pm me best price

still available?

Can I ask the experts here.

I measured my Wall Power output is around 247W. Most of appliances like Computer PSU is only rated for around 230V usage if I am not mistaken. Is the Wall output almost 250V too high. Will it shorten the lifespan or cause damage to equipment?

pm me too..

Are all the wall sockets in your house measured at around 247v constantly? If yes, my guess is your house probably situated near a TNB substation. Although 247v is on the high side, there's no need to be alarmed as all you might experience are fans runs slightly faster, water heater runs slightly hotter etc. What you really need to take notice is if the measurement at the wall power outlets are on the low side (below 220v). Below are examples that causes low supplied voltage :

1. Wiring too old & degraded.
2. Termination or point of contacts oxidation.
3. Using power extension with low quality copper wiring or steel wiring (rare but exist)
4. Sharing the same power outlet with a high power appliance.

Constant low supplied voltage causes electrical appliances to fail prematurely due to overworked & overheated, wiring to catches fire etc.

Any corrections or additional info from experts are welcome.

First of all sorry for the typo , it's 247V (as you already know). On another outlet it's about 245V.

For the 247V outlet, it will fluctuate slightly +/- some decimals. Sometimes it may go to 246V briefly , sometimes 248V briefly.

Since it's borderline high, I am afraid it may go above 250V sometime when not observing. I have experienced computer Motherboard failure quite often, not sure if the high voltage is the cause. Do you think I should get an AVR to play safe?

Btw, I have also been using an old AVR at another outlet . That AVR got a LED display which gives a reading of 230V constant. But when I plug in the Power Analyzer to the AVR, the reading on the analyzer shows 219-220V. Any idea why the reading is lower than the AVR? Since it's on borderline low is there any danger involved to the equipment plugged into the AVR ?

Thanks for your valuable advice

This post has been edited by Ngto: Nov 26 2011, 12:49 AM

Are all the motherboards that failed came from the same computer or power supply? Normally if supplied voltage is causing problems, the 1st thing that should be affected is the power supplies & not the motherboard. Is there any other electrical appliances that failed frequently?
Anyway if you suspect the culprit is the supplied voltage, an AVR from a good brand/manufacturer will ensure your electrical appliances gets the voltage within spec.

Mostly the same computer and power supply. Change MB few times but use back Power Supply which was not damaged. The PSU is expensive brand and provides sufficient voltage.

So what do you think about the different readings from the AVR and the Analyzer? I suspect the AVRs in the market are con job.

I tested another AVR (different brand in another room) which is also displaying the 230V in the LED display. But the Analyzer plugged in shows 244-245V.

1. Frequent motherboard failure issue, it is advisable to check the output capacitor in your power supply. They are located near those wires coming out from the power supply. Lookout for bulging or leaked capacitors.

2. It is odd that both AVR output such a big differences. The cheapest AVR are normally only designed to prevent power fluctuation, so if the power in your house fluctuate between 240~250v the AVR will out approximately 245v (depends on design) constantly. A better AVR will incorporate design to output at a fixed preset rate eg. 230v constant. Some expensive AVR even have the capability of a power conditioner to smoothen or remove noise in the power.

Since i do not know which type of AVR you are using, it is hard for me to to provide an answer on why 2 AVR output such a big difference. It might be of poorly designed or degrading and thus out of spec. You can however check whether the reading on the wattmeter is accurate by cross referencing with a multimeter (True RMS type if possible) or we can test it out for you when you send back the wattmeter to us.

Thanks for your helpful advice.

I had sent the PSU to repair shop to check before, but the technician didn't find any problems.

If two different AVR (supposed to be 230V) shows different readings with the Analyzer (one high , one low) , then I would suspect the AVR are not operating as specified. If it was the fault of the analyzer then it would either show both High or both Low, not one High and One Low .

Hi there, my unit LCD screen show no number and the backlight LCD keeps on flickering. Can I get exchange warranty?

Kindly send the faulty unit back to us for warranty claim.

Bro, replacement watt meter received today.

Very fast and good service.

Btw, this is very easy and good device to use calculate the cost of energy.

Is this watt meter have a battery to retain the data once power off?

Pm me the price. Deliver to bandar Sunday, slang or.

I'm interested in getting 3-4 units plus shipping to Penang. Please PM me best price. Do you accept PayPal?

By the way, do you sell any non-plug type power monitoring such as Efergy E2 Wireless Monitor (http://www.efergy.us/index.php/usa/products-usa/electricity-monitors/e2v2-wirelesss-monitor.html)?

Thanks in advance!


-------------------------------------------------------------------

fast and responsive seller.
I ordered from him and received the items the next day. Now testing it out!

This post has been edited by maxcheam: Feb 10 2012, 11:46 AM

Bro,

Want to get one. Can COD in KL/PJ ?

PM the best price + postage to JB.

Interested in buying one.
Been looking everywhere for this kill-a-watt thing but no one selling them.

PM price and details please.
COD or ship to KL.

Still available pos to Nilai 3. TQ

Hi,

Can this device acted as Power saver ? so that I can reduce my electric bill..hmm I don't know how to explain exactly

No, it is a device/tool for you to identify which electrical appliance is using the most power in your house so that you can replace it with a more power efficient model. Kindly refer to post #29 for more usage examples :-

~ Click here for post #29 ~

OIC, If you have Power Saver please PM me and anyway is Power Saver works as it is ?

Hi! My home is running 3phase and voltage fluctuates like crazy, it goes as low as 219V on one phase. Complains to TNB yielded no improvements. Do you have a solution to stabilize the voltage?

It only happens on the same phase all the time? How long the 219v lasted on that phase?

greetings bro,

kindly pm price for unit. my dad is looking for 1 ass he's electricity bill is 1k every month. just wonder how to test the built in appliances, eg aircon, water heater etc.

Hi,
How much if pos to Johore Bahru?
Where is your shop

Bro, still got stock?
PM best price for 2 units include postage to KL
Thanks!

can i use in to measure total kW use per month? so that i can calculate how is usage per month?

Yes, the Multifunctional Wattmeter can measure the total usage in KW & the total amount if you set the currency rate accordingly.

still available?? my monthly tnb bill is killing me... not sure which equipment is the culprit... pm me your banking details.. thanks

Purchased from this guy. I am waiting for the item to be delivered and a complete feedback will be posted later once I have the item on my hand

Okay my humble review for the seller.

Item

Well I did get the item inside a box. Everything is provided and it indeed works. Displays power usage various electronic and I just realized that my Atom Nettop consumes the least power and my Server consumes <2W on standby. Interesting to know after letting it to run for 30 minutes.

Shipment

I should say its fast. The seller shipped within the same day. Paid around 3PM and it was shipped on the same day. Received it the following day

Communication

Excellent. The seller PM'ed and even SMS'ed me with my tracking number and the communication was smooth. No hiccups , promptly answered my SMS question on warranty (just to test how people respond when I ask them silly question)

Overall
I am satisfied with the overall service provided by this guy. Would I buy anything again ? Yes , probably especially things like a watt metre which is extremely rare in Malaysia. Plus with LED makes it easier to see when you have poor lighting conditions.

Kudos !

Question:
Does it also show the operating period (hours and minute)? For example, I turn on the air con at 1pm and switch off at 5.37pm. will I get readings like 7.2kwh and time 4.37hrs.

Thank you.

Thanks for the mini review & acknowledgement.
Our company has an agreement with Poslaju for a daily pick-up (except the 1st Saturday of every month, Sunday and Public Holiday) so all orders with payment cleared before 3.00pm will be send out on the same working day.

Yes, it can log the run time of the electrical appliance that plugged onto it and many more. You can even set the standby threshold so that it only log time when the compressor is running.

Hi..
Pm me pls. .. I want one unit

pm me best price 1 unit. thanks.

Please PM me your best price.

can it be used as individual meter for aircond ?

sorry wrong post

This post has been edited by Miokawaii: Apr 22 2012, 10:44 PM

Yes, it is meant for measuring a single electrical appliance at a time.

Please PM me the best price....

I want 1, pm me the best price to PJ

Hi,

Please pm me details. I'm interested and would like to purchase 1.

Can check the stand by mode consumption as well?

Yes, the wattmeter will shows the power consumption of your electrical appliance in standby mode as well. The watt meter can also be configure to ignore the standby mode & only record the total power consumption by setting the minimum threshold value so that you can monitor your equipment operational power consumption.

Pls send me more details, or send me link i can check, want to get it. Thanks, cause actually now I am working for energy saving company and we need this device for our road shows.

Is this still available? If COD where? Please PM me.

Bro,

I'm interested with this product

Nice to have one for monitoring at home.

pm me for 1 unit to selangor bro tx

HI, pls PM pricing including postage to batu pahat, johor. thnx

Interested,please give me the best price postage to johor bahru,johor cheers

pm best price please, i wanna buy 3 unit. postage to alor setar, kedah.

This post has been edited by zeroknight83: May 19 2012, 05:36 PM

Would like to have 2 units. Pls PM me

PM me the best price ...

Please PM me price for 2 units delivery to selangor ampang and payment detail. thanks.

Shipment - RECEIVED on 24 May 2012

Shipment sent out on 23 afternoon,
Received it the next day.

Open the box today checked LED screen ok on both.
Have not test run yet.

PM me the price & detail for one to KL pls.

pm me best price plus postage to kuching pls. tq

PM me price for mailing to KL Sentral area.

pm me the best price shipped to JB