Secure Payment & Return Policies
Secure Payment & Return Policies

We use highly secure payment platforms, including Shop, Shopify Payments, Paypal, and Google Pay, to ensure your peace of mind. Here's what you can count on:
-
Secure Transactions: Our partners are industry leaders in payment security, using cutting-edge encryption to protect your data.
-
Fraud Protection: Rigorous fraud detection measures are in place to safeguard your transactions.
-
Flexible Payment Options: Choose from various trusted payment methods, including credit cards and digital wallets like Google Pay and Paypal.
-
Buyer Protection: Benefit from the buyer protection policies of our partners, ensuring refunds and dispute resolution.
-
Satisfaction Guarantee: We're confident in our products, and our customer support team is here to assist you if any issues arise.
- Return Policies: Please visit our policies to safely return any products that doesn't match your expectations.
Please feel free to contact us through our contact channels, our online chat there is always a team member online to help you out! If you prefer to call, our number is 0 401 690 551.
FAQs - Frequently Asked Questions
FAQs - Frequently Asked Questions
- Regular price
- $440.00


Business Credit Account Application
(Click here to see full screen)
Apply for a Business Credit Account with Tecnologia Shop, our team will review your application and contact you in 24h.
Upon approval, you will receive credit to spend on our store shown directly in your checkout along with all information needed.
When it comes to indoor air quality, precision and reliability are paramount. The Siemens QSA Series Carbon Monoxide Sensor stands as your vigilant guardian, ensuring your living and working spaces are free from harmful particulate matter. Let's delve into the features and capabilities that make the QSA Series a top choice for your indoor air quality monitoring needs.
Key Features:
-
Dual 0 to 10V Outputs: The QSA Series offers two output channels for PM2.5 and PM10 particulate matter measurements. This dual-channel design provides comprehensive insights into your indoor air quality.
-
Modbus RTU Network Capability: Seamlessly integrate the sensor into your network through Modbus RTU, allowing you to monitor air quality data across multiple devices effortlessly.
-
3-Color LED Indicator (QSA2700): The QSA2700 sensor features an intuitive LED indicator that visually communicates the operating status. Instantly understand your air quality with a glance.
-
QSA2700D with Color LCD: For advanced monitoring, the QSA2700D boasts a vivid 2.4-inch color LCD display. Monitor PM2.5 values and Air Quality Index (AQI) with ease. Language options include English, Chinese, German, and French, catering to diverse users.
Technical Specifications:
-
Operating Voltage: The QSA Series operates on a versatile 24 Vac ± 20% or 13.5 to 35 Vdc power supply, ensuring compatibility with your setup.
-
Measuring Range: Detect and measure concentrations of particulates within the PM2.5 and PM10 classifications, ranging from 0 to 500 μg/m³.
-
Unit-to-Unit Variability: Siemens guarantees a maximum variability of ±15 μg/m³ and ±15% of reading @ 77°F (25°C) and 50% relative humidity, ensuring consistency in measurements.
-
Analog Output: The sensor provides a linear 0 to 10 Vdc analog output within a selectable range, accommodating your specific air quality monitoring needs.
-
Communication Protocol: Utilize the RS485 ModBus RTU protocol for seamless data transmission across extensive distances, with a maximum wiring length of 1,970 ft (600 m).
-
Rugged Enclosure: Housed in a durable NEMA 1 (IP30) enclosure, the QSA Series is designed to withstand various environmental conditions.
-
Ambient Conditions: The sensor is designed to operate in temperatures ranging from 32°F to 122°F (0°C to 50°C) and humidity levels between 5% to 95% (non-condensing).
Your Indoor Air Quality Companion:
The Siemens QSA Series Carbon Monoxide Sensor is your trusted companion in ensuring indoor air quality. With accurate and real-time monitoring of PM2.5 and PM10 particulate matter, you can take proactive measures to maintain a healthy and safe living or working environment.
Invest in the Siemens QSA Series Carbon Monoxide Sensor and breathe easy with confidence. Your well-being is our priority.
Siemens QSM Series Carbon Monoxide Sensor: Smart Air Quality Monitoring for Enhanced Comfort
In the quest for optimal indoor comfort and energy efficiency, precision is the key. The Siemens QSM Series Carbon Monoxide Sensor is here to provide you with unparalleled insights into your indoor environment. Let's explore the remarkable features and capabilities that make the QSM Series the smart choice for air quality monitoring.
Key Features:
-
Comprehensive Data Acquisition: The QSM Series sensors are designed to capture vital data, including PM2.5 and PM10 concentrations, relative humidity, and temperature. This multifaceted approach ensures a holistic view of your indoor air quality.
-
Versatile Power Options: Operating seamlessly on both AC 24 V and DC 15-35 V, the QSM Series sensors offer flexibility in terms of power supply, making them suitable for a wide range of applications.
-
Flexible Signal Outputs: With signal outputs ranging from DC 0-10 V, DC 0-5 V, to 4-20 mA, the QSM Series sensors adapt to your specific requirements, providing you with the data you need in a format that's convenient for you.
-
Wide Range of Use: The sensors thrive in an operational temperature range of -5°C to 45°C and relative humidity from 5% to 95% (non-condensing). This durability ensures accurate data acquisition in diverse environmental conditions.
Versatile Applications:
The QSM Series sensors find their natural habitat in the air ducts of ventilation and air conditioning systems. Here's how they enhance room comfort and optimize energy consumption:
- Demand-Controlled Ventilation: Achieve energy efficiency by providing demand-controlled ventilation. The sensors monitor PM2.5 and PM10 concentrations, relative humidity, and duct air temperature, allowing your systems to respond intelligently to changing conditions.
Important Notes:
-
Not for Safety Use: It's essential to note that these sensors are not intended for safety-critical applications, such as gas or smoke warning systems. Their purpose is to enhance comfort and energy efficiency.
-
Indoor Use: The QSM Series sensors are designed for indoor use and should not be deployed outdoors.
Available Models:
-
QSM2100: A fine dust duct sensor for PM2.5 and PM10 concentrations.
-
QSM2162: A fine dust duct sensor for PM2.5 and PM10 concentrations, temperature, and relative humidity.
With Siemens QSM Series Carbon Monoxide Sensors, you'll be in control of your indoor environment. Make data-driven decisions for improved comfort and reduced energy consumption. Your indoor spaces deserve nothing less.
Part Numbers:
QSA2700 Room Sensor Fine Dust PM2.5 & PM10 AC 24V DC 0...10 V Modbus RTU (S55720-S457)
QSA2700D Room Sensor Fine Dust LCD PM2.5 & PM10 AC 24V DC 0...10 V Modbus RTU (S55720-S458)
QSM2100 Duct sensor for detection of PM2.5 and PM10
QSM2162 Duct sensor for detection of fine dust Temperature Humidity
AQS2700 Replacement Sensor module for QSA2700X Fine Dust Sensors (S55720-S459)
AQS2100 Replacement sensor module for QSM21.. Fine Dust Sensors (S55720-S493)