Benetech GM86 vs GM89 Power Monitor for Appliance Electricity Consumption Checking Malaysia
Which Power Monitor Should You Choose?
The Benetech GM86 and GM89 power monitors help users check the electricity consumption of compatible plug-in appliances.
Both models monitor active power, voltage, current, frequency, power factor and accumulated electricity consumption. Their main catalogue-listed difference is load capacity: GM86 is rated at 10A and 2200W, while GM89 is rated at 16A and 3520W.
For buyers in Malaysia, selection should consider both the appliance load and the rating of the complete plug-and-socket connection.
GM86 vs GM89: Specification Comparison
SpecificationGM86GM89Catalogue-listed supply220V, 50Hz220V, 50HzWorking voltage range100–260V100–260VMaximum rated current10A16AMaximum power2200W3520WMeasurable power range0.2–2200W0.1–3520WPower factor range0.000–1.0000.000–1.000Accumulated electricity consumptionYesYesElectricity consumption time recordingYesYesConfigurable load alarm thresholdYesYesClock display and timing switchNoNoOvercurrent protection and buzzer alarmNoNo
These figures are taken from the supplied catalogue. Confirm the specifications on the actual supplied unit, particularly its plug version and permitted load.
What Can You Check?
Both models provide readings that help answer practical questions:
Active power: How much power is the appliance drawing now?
Accumulated energy: How much electricity has it used during the monitoring period?
Operating time: How long has consumption been recorded?
Voltage and current: What electrical conditions are shown during operation?
Power factor: What power factor does the connected appliance show?
These checks can support appliance comparisons and electricity-use investigations in homes, offices and shops.
Understanding Watts and Kilowatt-Hours
Watts (W) describe power at a particular moment. Kilowatt-hours (kWh) describe energy consumed over time.
An appliance that cycles on and off may show different power readings throughout the day. Recording its accumulated kWh over a representative period gives a more useful picture of energy use than one instant reading.
For fair comparisons, use similar operating hours, settings and conditions.
Choose GM86 for Loads Within Its Rating
The GM86 is an option when the connected appliance remains within its 10A current rating and 2200W maximum power specification.
It provides the main monitoring functions needed for checking appliance power and accumulated energy consumption.
Before connecting an appliance, check its electrical nameplate and any starting-load requirements. The appliance and connection must remain within all applicable ratings.
Choose GM89 When Its Additional Capacity Is Needed
The GM89 offers a higher catalogue-listed rating of 16A and 3520W and a measurable power range starting at 0.1W.
However, a lower measurable range does not establish better low-power accuracy. The catalogue does not provide a detailed accuracy specification for standby-power measurements.
For buyers who need precise measurement of very small loads, request further accuracy information before selection.
Selecting a Plug Version for Malaysia
The catalogue shows Chinese, European, American and British plug options.
For Malaysian installations using British-style sockets, request the appropriate British plug version and confirm the complete unit’s rating.
A 16A instrument rating does not make a 13A plug or socket suitable for 16A operation. Use the lowest applicable rating of the monitor, plug, socket and any connection accessories as the limit.
Load Alarm Settings Are Not Overcurrent Protection
Both models list a configurable load alarm threshold. The catalogue separately marks overcurrent protection and buzzer alarm as unavailable.
Do not assume the threshold setting automatically disconnects an overloaded appliance. Confirm how the indication works in the operating manual.
The catalogue also lists no clock display or timing-switch function, so these models should not be selected as programmable appliance timers.
Estimating Electricity Cost
Recorded energy consumption can support a simple cost estimate:
Estimated energy cost = recorded kWh × applicable electricity rate per kWh
For example, 10 kWh at an assumed RM0.50/kWh equals RM5.00.
This is an illustration, not a current tariff quotation. Actual billing may include tariff tiers, adjustments and other charges.
Power Monitor Enquiries in Malaysia
For customers in Selangor, Kuala Lumpur, Johor and Penang, choosing between GM86 and GM89 starts with the appliance rating, required monitoring functions and suitable plug configuration.
Contact MTM Precision Sdn Bhd with a photo of the appliance nameplate and plug. We can help review the suitable model, confirm the offered configuration and provide a quotation.
MTM Precision Sdn Bhd
Showroom & Service Centre: No. 29-1 & 29-2, Jalan Bandar 18, Pusat Bandar Puchong, 47160 Puchong, Selangor, Malaysia
Tel: 03-8080 7172
WhatsApp: +6016-660 7346
Email: mtmpre@yahoo.com
Website: www.mtmpre.com.my
09 Oct 2026
