PTH-9E vs PTH-12 CO Detector Comparison for Homes and Offices Malaysia
PTH-9E vs PTH-12 CO Detector Comparison for Homes and Offices Malaysia
Content
The PTH-9E and PTH-12 both measure carbon monoxide, temperature and humidity, with buzzer and low-battery alerts. Their main difference is gas coverage: the PTH-9E also measures carbon dioxide, while the PTH-12 lists CO measurement only.
For buyers in Malaysia, the choice depends on whether CO2 readings and adjustable alarm settings are required, or whether a smaller CO-focused instrument better suits the application.
PTH-9E vs PTH-12: Main Differences
FeaturePTH-9EPTH-12Carbon monoxide measurementYesYesCarbon dioxide measurementYesNoTemperature and humidityYesYesAdjustable CO sound-alarm valueListedNot listedAdjustable CO2 sound-alarm valueListedNot applicableBuzzer and low-battery alertsAdvertisedAdvertisedComfort indicatorNot specifiedAdvertisedBattery capacity2000 mAh2400 mAhCharging connectionType-CMicro USBDimensions98 x 90 x 40 mm83 x 83 x 32 mm
Choose the PTH-9E when you need CO and CO2 on one instrument. Consider the PTH-12 when the requirement is CO monitoring in a more compact body.
Carbon Monoxide Measurement Specifications
Both models list the same core CO specifications.
ParameterBoth modelsCO range0-500 ppmPublished CO accuracy卤10%CO resolution1 ppmDefault CO alarm value150 ppmPublished CO response timeLess than 60 seconds
The catalogue does not explain the reference conditions or percentage basis for the accuracy figure. Request the detailed specification if measurement performance must meet a purchasing requirement.
The 150 ppm value is a default device alarm setting. It should not be presented as a universal exposure limit or a Malaysian regulatory threshold.
PTH-9E Adds Carbon Dioxide Measurement
The PTH-9E displays a separate CO2 reading, alongside its CO measurement.
CO2 parameterPTH-9ERange400-5000 ppmPublished accuracy卤(50 ppm 卤5%), as printedResolution1 ppmDefault alarm value1500 ppmAdjustable sound-alarm valueListed
The printed CO2 accuracy expression is ambiguous. Confirm the intended formula and percentage basis before quoting it in a technical specification.
The supplied page does not identify the CO2 sensing technology. NDIR sensing should not be assumed without model-specific confirmation.
CO and CO2 Are Separate Measurements
The similar names can cause confusion, but the model distinction is straightforward:
PTH-9E: CO plus CO2, temperature and humidity.
PTH-12: CO, temperature and humidity.
Neither model lists combustible gas, smoke, oxygen or formaldehyde detection on the supplied page. A kitchen illustration should not be interpreted as confirmation of gas-leak detection.
Alarm Settings and Response Behaviour
The PTH-9E lists adjustable sound-alarm values for both CO and CO2. The PTH-12 marks CO alarm customization as unavailable.
For either model, confirm the alarm activation schedule, sound level, mute function and reset behaviour in the manual.
The published response time of less than 60 seconds does not establish the complete alarm timing at every concentration.
If the application requires a certified residential CO alarm, request the applicable compliance documentation. This catalogue page does not establish certified alarm performance.
Temperature and Humidity Comparison
ParameterPTH-9EPTH-12Temperature range0掳C to 50掳C-10掳C to 40掳CTemperature accuracy卤1.5掳C卤1掳CTemperature resolution1掳C1掳CHumidity range20-80% RH20-80% RHHumidity accuracy卤5%卤5%Humidity resolution1% RH1% RH
These readings provide local room-condition information. The PTH-12 also advertises a comfort indicator, although its thresholds are not defined.
When comparing instruments, allow readings to stabilize in the same location and consider the published tolerances.
Battery and Charging Arrangements
The PTH-9E lists a 2000 mAh Li-Po battery and Type-C input at 5 V, 1 A.
The PTH-12 lists a 2400 mAh lithium battery and Micro USB input at 5 V, 1 A.
Battery runtime and charging duration are not provided. The larger battery capacity should not automatically be interpreted as longer operating time, because power consumption can differ between models.
Confirm continuous operation while charging and the low-battery warning behaviour before installation.
Selection for Malaysian Properties
For homes and offices in Puchong, Selangor and Kuala Lumpur, identify the required gas channels before choosing the display format.
For managed properties in Johor or Penang, also consider charging access, maintenance procedures and whether readings need to be recorded. WiFi, Bluetooth, app support and data export are not listed for either model on this page.
Follow the manufacturer's placement instructions. Promotional fireplace and kitchen images are not installation diagrams.
Frequently Asked Questions
Which model measures both CO and CO2?
The PTH-9E lists both gas measurements.
Does the PTH-12 measure CO2?
No. CO2 functions are marked as unavailable in its specification column.
Can the CO alarm setting be changed?
Customization is listed for the PTH-9E, while the PTH-12 marks this function as unavailable.
Does either model detect an LPG leak?
Combustible gas detection is not listed.
Which model is smaller?
The PTH-12, at 83 x 83 x 32 mm, is smaller than the PTH-9E.
Can either model send phone notifications?
Wireless connectivity and app notifications are not specified on this page.
Is a calibration certificate included?
The catalogue does not state that one is included. Specify calibration and documentation requirements before purchase.
Enquire About PTH-9E and PTH-12 in Malaysia
Contact MTM Precision Sdn Bhd with your target gases, intended location and alarm requirements. Request confirmation of the sensor specifications, alarm behaviour and power arrangement before selecting the appropriate model.
SEO Meta Description: Compare PTH-9E and PTH-12 CO detectors in Malaysia, including CO2 capability, alarm settings, temperature, humidity and charging options.
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
24 Oct 2026
