PT221 Digital Temperature and Humidity Clock Buying Guide Malaysia
PT221 Digital Temperature and Humidity Clock Buying Guide Malaysia
Content
The PT221 Temperature and Humidity Clock combines a digital clock, calendar and local temperature and humidity readings in a compact desktop unit.
For homes and offices in Malaysia, it provides a convenient way to check the time and room conditions on one display. Its 82 x 82 x 21 mm body suits desks, shelves and bedside tables where space is limited.
PT221 Product Specifications
ParameterCatalogue specificationTemperature range-10°C to 50°CTemperature error±1°CTemperature resolution0.1°CHumidity range20-90% RHHumidity error±5%Humidity resolution1% RHTime format12-hour or 24-hourCalendar displayDate, weekday and yearPower supply2 x 1.5 V AAA batteriesDimensions82 x 82 x 21 mm
The catalogue marks batteries as optional. Confirm whether batteries are included with the supplied package.
Clock and Room Readings on One Display
The PT221 displays the time alongside temperature and relative humidity. Its calendar information adds the date and weekday, making it useful as an everyday desk clock.
For a home office in Puchong or Kuala Lumpur, this arrangement allows users to check local room conditions without opening a phone app or using a separate thermometer.
The product illustration also shows an alarm indicator and alarm time. Confirm the available alarm settings and whether a snooze function is included, as these details are not specified in the supplied table.
Understanding Temperature Accuracy and Resolution
The PT221 lists 0.1°C resolution and ±1°C temperature error.
These describe different characteristics. Resolution is the smallest displayed increment, while the error specification describes the published measurement tolerance.
A reading displayed to one decimal place should therefore not be interpreted as accurate to 0.1°C.
For general room checks, the display provides a useful local reference. Applications requiring tighter tolerances should be matched to an instrument with suitable specifications and calibration documentation.
Humidity Monitoring for Everyday Room Checks
The published humidity range is 20-90% RH, with 1% RH resolution and a listed error of ±5%.
This allows the PT221 to display relative humidity alongside temperature. When comparing readings from different devices, consider their specifications and give them time to stabilize in the same location.
The supplied page does not list humidity alarms, minimum and maximum memory or historical data storage. Confirm these functions separately if they are required.
Battery Power and Flexible Placement
The PT221 uses two 1.5 V AAA batteries, allowing placement without a mains cable.
This can be convenient for:
Home-office desks.
Bedroom shelves.
Reception counters.
Meeting rooms.
Small administrative offices.
Battery runtime is not stated in the catalogue. Confirm the recommended battery type and replacement procedure before use.
Where Should You Place the PT221?
Choose a position that represents the room conditions you want to observe.
Keep the instrument away from direct sunlight, hot equipment and direct air-conditioner discharge. A reading beside a window or immediately under a cooling vent may differ from conditions elsewhere in the room.
After moving the clock, allow the readings to settle before making comparisons. The supplied page does not state the sensor response time, so a specific stabilization period should not be assumed.
For offices in Selangor, Johor or Penang, consistent placement helps make routine checks more meaningful.
Does the PT221 Connect to WiFi?
Although the catalogue uses the phrase “Smart Home,” the supplied specifications do not list WiFi, Bluetooth, app connectivity or remote sensors.
The PT221 should therefore be selected as a local-display temperature and humidity clock unless additional connectivity is confirmed for the exact supplied version.
If your requirement includes remote viewing, notifications or records from several rooms, specify those functions when making an enquiry.
Everyday Display or Data Logger?
The PT221 is presented as a compact clock with room-condition readings. A data logger serves a different requirement by recording measurements over time.
RequirementPT221 catalogue coverageView the current timeListedView the date and weekdayListedCheck local temperatureListedCheck local humidityListedExport measurement historyNot specifiedReceive remote notificationsNot specifiedMonitor separate wireless sensorsNot specifiedProduce documented environmental recordsLogging and reporting functions not specified
For storage monitoring, quality-control records or other applications requiring an audit trail, confirm whether a dedicated temperature and humidity data logger is needed.
Frequently Asked Questions
What does the PT221 measure?
It measures temperature and relative humidity, alongside its clock and calendar functions.
What is the temperature range?
The published range is -10°C to 50°C, with a listed error of ±1°C.
Can it display both 12-hour and 24-hour time?
Yes. Both time formats are listed in the catalogue.
Does it need a power adapter?
The specified power source is two 1.5 V AAA batteries. A mains adapter is not listed.
Does it measure outdoor conditions?
The supplied page does not specify outdoor weather protection or an external sensor. Confirm suitability before considering outdoor placement.
Does it record temperature and humidity history?
Data logging and history export are not specified.
Is a calibration certificate included?
The catalogue does not state that a calibration certificate is included. Specify any documentation requirements before ordering.
Enquire About the PT221 in Malaysia
Contact MTM Precision Sdn Bhd for enquiries about the PT221 Digital Temperature and Humidity Clock. Share your intended location and whether you need a simple room display, remote monitoring or recorded measurements so the appropriate instrument can be discussed.
SEO Meta Description: Explore the PT221 temperature and humidity clock in Malaysia, featuring a calendar, 12/24-hour time and AAA battery power. Enquire 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
