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

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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!

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.

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.

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

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.

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

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

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.

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

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

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

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.

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

@ 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.

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.

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.