FABISENSE PTH-9C vs PTH-9CW NDIR CO2 Monitor Buying Guide Malaysia
Title
FABISENSE PTH-9C vs PTH-9CW NDIR CO2 Monitor Buying Guide Malaysia
Content
The FABISENSE PTH-9C and PTH-9CW measure carbon dioxide, temperature and humidity, with a large numerical display and buzzer alert. The main difference is connectivity: PTH-9C operates without an app, while PTH-9CW adds 2.4 GHz Wi-Fi and Tuya Smart app support.
According to the supplied manufacturer catalogue, both models use an NDIR CO2 sensor with a 400–5000 ppm measurement range.
PTH-9C vs PTH-9CW - Which Should You Choose?
Choose PTH-9C when you want to read CO2, temperature and humidity directly on the instrument.
Choose PTH-9CW when you also need the listed Wi-Fi connection and Tuya Smart compatibility. Confirm the available app functions before ordering if historical records, remote notifications or data export are required.
FeaturePTH-9CPTH-9CWCO2 measurementYesYesNDIR CO2 sensorYesYesTemperature and humidityYesYesVisual indicator barYesYesBuzzer alertYesYesLow battery alarmYesYesWi-FiNo2.4 GHz onlyTuya Smart appNoYesBattery capacity2000 mAh2000 mAh
NDIR CO2 Measurement
The catalogue explicitly identifies NDIR CO2 sensing for both models.
NDIR stands for non-dispersive infrared. This sensing method measures carbon dioxide using its absorption of infrared light.
Both detectors display CO2 in parts per million, or ppm. Their listed 1 ppm resolution describes the display increment; it does not mean the instrument has ±1 ppm accuracy.
The catalogue prints the accuracy expression as ±(50 ppm ±5%). Ask for the current manufacturer datasheet to clarify how the fixed and percentage terms apply.
FABISENSE PTH-9C - Simple On-Device Monitoring
The PTH-9C CO2 monitor suits buyers who want a straightforward display without connecting the instrument to a wireless network.
Its listed functions include:
CO2 concentration display
Temperature and relative humidity
Visual indicator bar
Buzzer alert
Low battery alarm
This configuration may suit a meeting room, classroom or office where users can check the instrument directly.
FABISENSE PTH-9CW - Wi-Fi and Tuya Smart
The PTH-9CW Wi-Fi CO2 monitor provides the same listed measurement functions with additional connectivity.
The catalogue specifies:
2.4 GHz Wi-Fi network support
Tuya Smart app compatibility
Check that a compatible network is available at the intended location. A network offering only 5 GHz connectivity does not meet the stated requirement.
The supplied page does not define history retention, logging intervals, export formats, multi-user access or push notifications. Confirm these capabilities if they are important to your monitoring workflow.
Temperature and Humidity Readings
Both models display temperature and humidity alongside CO2.
The catalogue lists:
Temperature range: −10°C to 40°C.
Stated temperature accuracy: ±1°C.
Humidity range: 20–80% RH.
Stated humidity accuracy: ±5% RH.
These readings provide additional information when observing indoor conditions. Place the instrument away from direct sunlight and local heat sources, following the manufacturer’s instructions.
Product Specifications
ParameterSpecification from supplied catalogueModelsPTH-9C and PTH-9CWCO2 sensorNDIRCO2 range400–5000 ppmCO2 resolution1 ppmBattery2000 mAh lithium-polymerCharging connectionUSB Type-CCharging input5 V, 1 AWorking temperature−10°C to 40°CDimensions98 × 90 × 40 mm
Battery runtime, charging time and suitability for continuous operation while charging are not stated on the supplied page.
Applications for Offices and Meeting Rooms
For offices in Puchong, Kuala Lumpur, Johor Bahru and Penang, the PTH-9C and PTH-9CW offer a way to observe CO2 readings during normal room use.
Users can compare readings under documented conditions, such as:
Before and during a meeting.
At different occupancy levels.
Before and after a change in ventilation arrangements.
During comparable periods on different days.
Keep the instrument position consistent and record relevant changes in room use. One reading describes conditions at that location and time.
Applications for Classrooms and Training Rooms
A large CO2 display can help teachers and facilities staff observe changes during occupied sessions.
The PTH-9C provides direct viewing without network setup. The PTH-9CW adds app connectivity for users who prefer connected access, subject to confirmation of the required app functions.
A detector reading should be considered together with room occupancy, ventilation conditions and the purpose of the monitoring programme.
Greenhouse Applications
The manufacturer also lists plant greenhouse applications.
Before selecting either model for a greenhouse, check whether the 400–5000 ppm range, 20–80% RH humidity specification and operating conditions match the installation.
The supplied page does not state an IP rating, condensation tolerance or control output. Do not assume the detector can directly control CO2 dosing equipment.
Understanding the Indicator Bar and Buzzer
Both models include a visual bar and buzzer alert.
However, the supplied page does not specify:
The concentration assigned to each colour.
Alarm activation thresholds.
Alarm delay.
Whether thresholds are adjustable.
Buzzer sound level.
Confirm these settings before using the indicator or alarm as part of a room monitoring procedure.
Frequently Asked Questions
What is the main difference between PTH-9C and PTH-9CW?
The PTH-9CW adds 2.4 GHz Wi-Fi and Tuya Smart support. The PTH-9C does not list wireless connectivity.
Do both models measure temperature and humidity?
Yes. Both functions are listed for both models.
Does PTH-9CW support 5 GHz Wi-Fi?
The catalogue specifies 2.4 GHz Wi-Fi only.
Do these models measure carbon monoxide?
CO measurement is not listed. CO2 and CO are different gases.
Do they measure PM2.5, formaldehyde or TVOC?
These parameters are not listed on the supplied page.
Can the PTH-9CW export readings?
Export capability is not confirmed by this catalogue page. Request app documentation or a demonstration.
Do these monitors provide a complete indoor air quality assessment?
They provide the listed CO2, temperature and humidity readings. Applications requiring other pollutants or a specified assessment method need appropriate additional equipment and documentation.
Enquire About FABISENSE CO2 Monitors Malaysia
Contact MTM Precision Sdn Bhd to compare the FABISENSE PTH-9C and PTH-9CW NDIR CO2 monitors.
Share your room type, connectivity requirements and any required data functions so the appropriate configuration can be checked. Specifications and availability are subject to confirmation.
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Compare FABISENSE PTH-9C and PTH-9CW NDIR CO2 monitors in Malaysia, including temperature, humidity, Wi-Fi and Tuya Smart features with MTM Precision.
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
23 Oct 2026
