Whether you're a student building your first Arduino project or an engineer sourcing sensors for an industrial setup, understanding the temperature sensor price in Bangladesh is the first step to making a smart purchase. Prices vary widely — from under ৳100 to over ৳1,000 — and picking the wrong sensor can cost you more in the long run.
Based on current market data from major local suppliers (RoboticsBD, TechShopBD, BDTronics), here's what you can expect to pay in 2026:
- Basic sensors (LM35, DHT11): ৳80 – ৳280 — ideal for students and hobbyists
- Mid-range sensors (DHT22, DS18B20): ৳200 – ৳420 — suited for makers and project builders
- Advanced modules (BME280, W1209, MLX90614): ৳245 – ৳1,140 — for IoT developers and automation projects
- Industrial sensors (PT100, K-Type Thermocouple): ৳285 – ৳800+ — for engineers and factory applications
This guide covers the most widely available temperature sensors in Bangladesh — what they do, what they cost, and which one fits your project. The right sensor makes all the difference. Read on to find yours.
Table of Contents
- What Is a Temperature Sensor and Why Does It Matter?
- Types of Temperature Sensors Available in Bangladesh
- Temperature Sensor Price List in Bangladesh (2026)
- Which Temperature Sensor Is Best for Your Project?
- W1209 & MLX90614: Are They Worth the Price in BD?
- Where to Buy Temperature Sensors in Bangladesh?
- Tips to Get the Best Deal Without Sacrificing Quality
- Conclusion
- Frequently Asked Questions
What Is a Temperature Sensor and Why Does It Matter?
A temperature sensor detects heat and converts it into a readable signal.
Simple concept. Huge impact.
Picture a student in Dhaka building a weather station for his university project. He needs outdoor temperature accurate to 0.1°C. A ৳90 DHT11 sensor makes that possible. Or think about a poultry farmer in Gazipur — his incubator must hold exactly 37.5°C for eggs to hatch. One degree off, and the whole batch fails.
That's why temperature sensors matter.
What Does It Actually Do?
One job: measure heat → output a signal. That signal can be analog (a voltage) or digital (a number). Your microcontroller reads it and acts.
Where Are They Used?
More places than you'd think. Here's a quick overview:
| Use Case | Example | Sensor Typically Used |
|---|---|---|
| Poultry / Incubator | Maintaining 37.5°C for hatching eggs | W1209 + NTC Sensor |
| Home Automation | Auto fan control based on room temp | DHT11 / DHT22 |
| Weather Station | University project, rooftop monitoring | DHT22 / BME280 |
| Aquarium | Water temp alert system | DS18B20 (waterproof) |
| Body Temperature | Non-contact fever check | MLX90614 |
| Industrial Equipment | Machine overheat protection | PT100 / Thermocouple |
The right sensor depends entirely on what you're measuring — and how precisely you need to measure it.
Types of Temperature Sensors Available in Bangladesh
Not all temperature sensors are built the same. Each type serves a different purpose — and choosing the wrong one can ruin an otherwise solid project.
DHT11 & DHT22 — The Everyday Choice
These are the sensors most beginners grab first. They measure both temperature and humidity in a single module. The DHT11 is cheaper but less accurate (±2°C). The DHT22 costs more but delivers ±0.5°C accuracy — a meaningful difference if your project depends on it.
Common use: Home automation, greenhouse monitoring, weather stations, university projects.
LM35 — Simple Analog Sensor
An analog IC that outputs 10mV per °C. No library needed. Just wire it up and read the voltage. It's a favorite in lab experiments and beginner kits across Bangladesh.
The downside? It's sensitive to electrical noise on long wires. Keep cables short.
DS18B20 — The Waterproof Workhorse
This is the go-to sensor when things get wet. Stainless steel probe. Digital output. Accurate to ±0.5°C from -10°C to +85°C. Works underwater — ideal for fish tanks, soil monitoring, or liquid temperature control.
You can even chain multiple DS18B20 sensors on a single wire. One pin. Multiple readings. Clean setup.
BME280 — Three Sensors in One
Temperature, humidity, and barometric pressure — all from a single I2C module the size of your fingernail. Preferred for advanced weather stations and IoT projects. Requires 3.3V logic.
MLX90614 — Non-Contact Infrared Sensor
Point it at an object. Get the surface temperature — without touching it. Originally used in industrial IR thermometers and fever-check guns, the MLX90614 is now popular with Arduino builders in Bangladesh for contactless body temperature measurement and object detection projects.
Note: The MLX90614 price in BD is higher than typical sensors — but it's the only option when physical contact isn't possible.
PT100 & Thermocouple — Industrial Grade
When you're measuring furnace heat, motor temperatures, or industrial process lines, hobby sensors won't cut it. PT100 RTDs offer high accuracy across a wide range (-50°C to +400°C). Type-K thermocouples go even higher — up to 800°C. These are used in factories, labs, and serious engineering setups.
W1209 + NTC — The Incubator Favorite
Strictly speaking, the W1209 is a temperature controller, not just a sensor — it comes bundled with an NTC thermistor probe and a relay. Set your target temperature, and it automatically switches a connected device on or off. Extremely popular in Bangladesh for poultry incubators and DIY cooling/heating systems.
Temperature Sensor Price List in Bangladesh (2026)
Prices below are based on current listings from major local suppliers including RoboticsBD, TechShopBD, BDTronics, and ElectronicsBD. Prices may vary slightly by seller and availability.
| Sensor | Type | Best For | Price (BDT) |
|---|---|---|---|
| LM35 (IC bare) | Analog | Beginner labs, basic projects | ৳80 – ৳150 |
| LM35 (module) | Analog | Arduino projects with PCB mount | ৳160 – ৳250 |
| DHT11 (module) | Digital | Home automation, classroom projects | ৳130 – ৳280 |
| DHT22 (module) | Digital | Weather stations, greenhouse | ৳350 – ৳420 |
| DS18B20 (waterproof probe) | Digital 1-Wire | Aquarium, soil, liquid monitoring | ৳200 – ৳280 |
| BME280 (I2C module) | Digital I2C | IoT weather station, altitude sensing | ৳466 – ৳530 |
| MLX90614 (IR module) | Infrared | Non-contact body/object temp | ৳990 – ৳1,140 |
| W1209 (controller + NTC) | Controller Module | Incubator, auto fan, DIY thermostat | ৳245 – ৳280 |
| PT100 RTD (probe) | Resistance (RTD) | Industrial, lab, high-precision | ৳490 – ৳800 |
| K-Type Thermocouple | Thermocouple | High-temp industrial (up to 800°C) | ৳285 – ৳700 |
Prices last checked April 2026. Always verify with the seller before purchasing as stock availability can affect pricing.
Budget tip: If you're just starting out, the DHT11 + Arduino combo costs under ৳500 total and covers 90% of beginner project needs. Step up to the DHT22 or DS18B20 once you know exactly what your project demands.
Which Temperature Sensor Is Best for Your Project?
There's no single "best" sensor. The right choice depends on three things: what you're measuring, where you're measuring it, and how accurate you need to be.
Match the Sensor to the Job
| Your Project | Recommended Sensor | Why |
|---|---|---|
| First Arduino project / learning | LM35 or DHT11 | Cheap, simple, tons of tutorials |
| Room / indoor climate monitor | DHT22 | Reads both temp and humidity accurately |
| Fish tank / soil / liquid | DS18B20 (waterproof) | Sealed probe, survives water |
| Poultry incubator / auto fan | W1209 + NTC | Built-in relay, no extra wiring needed |
| Weather station / IoT node | BME280 | Temp + humidity + pressure in one chip |
| Non-contact / fever detection | MLX90614 | Infrared, no physical contact required |
| Factory / industrial equipment | PT100 or K-Type Thermocouple | Wide range, built for harsh environments |
Still unsure? Run through these quick questions before buying.
Quick decision guide:
① Will the sensor touch water or chemicals? → DS18B20
② Do you need humidity too? → DHT22 or BME280
③ Is it for a beginner or school project? → LM35 or DHT11
④ Temperature above 200°C? → Thermocouple or PT100
⑤ No physical contact allowed? → MLX90614
Analog vs. Digital — Does It Matter?
Yes — especially for beginners.
Analog sensors like the LM35 output a voltage. Your Arduino reads it with analogRead(). Simple, but noise on long wires can distort the reading.
Digital sensors like the DHT22 and DS18B20 output a clean number directly. More reliable over distance. Easier to work with in most modern projects.
For most projects in Bangladesh — where wiring setups are often DIY and wire quality varies — digital sensors are the safer choice.
W1209 & MLX90614: Are They Worth the Price in BD?
Two sensors that come up constantly in local forums and buyer searches — but for very different reasons. Here's an honest look at both.
W1209 Temperature Controller — Worth Every Taka
The W1209 costs between ৳245 and ৳280 in Bangladesh. For that price, you get a complete system: a digital display, a relay, an NTC waterproof probe, and full temperature control logic built in.
No Arduino needed. No coding. Just wire it up, set your target temperature, and it handles the rest.
Real scenario: A farmer in Narsingdi runs a 200-egg incubator. He sets the W1209 to 37.5°C. When the temperature drops, the heater kicks on automatically. When it rises, it cuts off. His hatch rate improved significantly after switching from a manual thermometer setup.
The W1209 is one of the best value purchases in BD electronics. If your project involves maintaining a target temperature — incubator, fish tank heater, cooling fan, mini fridge controller — this module is hard to beat at this price point.
Limitations to know: It requires a 12V DC supply. The NTC probe included is basic — fine for most DIY use, but not calibrated for medical or lab-grade precision.
MLX90614 Infrared Sensor — Expensive, But Irreplaceable
At ৳990 to ৳1,140, the MLX90614 is one of the priciest sensors on this list. Is it worth it?
That depends entirely on whether you need non-contact measurement.
If you do — there is no cheaper alternative that works as reliably. The MLX90614 measures surface temperature from a distance using infrared. It communicates via I2C. Accuracy is ±0.5°C around room temperature. It runs on 3.3V to 5V, making it compatible with Arduino, ESP32, and Raspberry Pi.
Where it shines in BD: Medical prototypes (fever scanners), contactless food temperature checks, motor surface monitoring, and smart door systems that detect human presence by body heat.
For most hobby projects, the MLX90614 price in BD is a significant investment. But if your application genuinely requires non-contact sensing, it pays for itself quickly compared to industrial alternatives that cost ten times more.
| W1209 | MLX90614 | |
|---|---|---|
| Price in BD | ৳245 – ৳280 | ৳990 – ৳1,140 |
| Contact required | Yes (NTC probe) | No (infrared) |
| Needs microcontroller | No | Yes (I2C) |
| Best for | Incubators, auto control | Fever check, object temp |
| Skill level | Beginner | Intermediate |
| Value for money | Excellent | Good (for the right use case) |
Bottom line: the W1209 is a near-universal recommendation for control projects. The MLX90614 is a specialist tool — only buy it if your project actually needs it.
Where to Buy Temperature Sensors in Bangladesh?
You have two options: buy online and wait 1–3 days, or walk into a shop in Dhaka and leave with it in hand. Both work — depending on how urgent your need is.
Online Stores
Most buyers in Bangladesh now shop online for electronics. Stock is wider, prices are often lower, and delivery reaches all 64 districts.
| Store | Website | Notable For |
|---|---|---|
| RoboticsBD | store.roboticsbd.com | Wide sensor range, reliable stock |
| TechShopBD | techshopbd.com | Competitive pricing, fast delivery |
| BDTronics | bdtronics.com | Good for MLX90614, BME280, niche modules |
| ElectronicsBD | electronics.com.bd | Budget options, W1209 and basic sensors |
| EEEShopBD | eeeshopbd.com | DIY kits, W1209 bundles |
All major stores accept bKash, Nagad, and cash on delivery — making it easy to order even without a card.
Physical Markets in Dhaka
If you need something today, head to Elephant Road (Dhaka's main electronics market). Dozens of small shops carry DHT11, LM35, DS18B20, and W1209 modules off the shelf. Prices may be slightly higher than online, but you can inspect the product before buying.
Tip for Dhaka buyers: Patuatuli and Bangabazar area also have component shops. For industrial sensors like PT100 or thermocouples, check larger suppliers in Motijheel or ask RoboticsBD — they stock industrial-grade options that smaller shops don't carry.
Outside Dhaka, online ordering with courier delivery is the most practical route. Most stores deliver to Chittagong, Sylhet, Rajshahi, and all major districts within 2–3 working days.
Tips to Get the Best Deal Without Sacrificing Quality
A ৳90 sensor that gives wrong readings isn't a deal — it's a waste. Here's how to buy smart.
Watch Out for Clones and Fakes
Counterfeit DHT11 and LM35 sensors are common in Bangladesh. They look identical to the real thing. The difference shows up only when you test them — inconsistent readings, early failure, or values that are simply wrong.
RoboticsBD explicitly warns on their product page: "LM35 sensors available in Bangladesh are unreliable. Exercise caution when buying from other sources." That's a seller warning about their own market. Take it seriously.
Buy from stores that source directly from verified suppliers. If a price looks suspiciously low — it usually is.
Compare Across Stores Before Paying
The same DHT22 module can range from ৳350 to ৳420 depending on the seller. The same W1209 goes for ৳245 to ৳280. A quick check across two or three stores before ordering takes two minutes and can save you ৳50–100 per unit — which adds up on bulk orders.
Check What's Included in the Package
Some sensors are sold as bare ICs. Others come as breakout modules with pull-up resistors and headers already soldered. The W1209, for instance, sometimes comes with the NTC probe included — and sometimes doesn't. Always read the product description carefully.
Buy One, Test First
If you need 10 units for a project, buy one first. Test it thoroughly. Then order the rest. A batch of faulty sensors from an unreliable source is far more frustrating than a 2-day delay.
Think About the Full Cost — Not Just the Sensor Price
A cheaper sensor sometimes requires extra components. The LM35 may need a decoupling capacitor and careful PCB layout to perform well. The DS18B20 needs a 4.7kΩ pull-up resistor. Factor in those small additions when comparing total project cost.
Conclusion
Temperature sensors in Bangladesh are affordable, widely available, and suited for everything from a ৳90 classroom experiment to a full industrial monitoring setup.
The key is matching the right sensor to your actual need — not just picking the cheapest or most popular one. A DHT11 is perfect for a beginner project. A DS18B20 is the right call for anything near water. The W1209 controller price in BD makes it one of the most practical buys for anyone running an incubator or DIY thermostat. And the MLX90614, while pricier, opens up a whole category of non-contact applications nothing else can handle at this price range.
Prices shift. New modules arrive. Stock runs out. Always verify current prices with local sellers before ordering — and when in doubt, buy from a trusted store with return support.
If you're sourcing sensors or electronic components at the manufacturer level, Vancera is a China-based supplier specializing in high-quality electronic components for international buyers. Whether you're scaling up a project or looking for reliable bulk sourcing, it's worth a look.
Frequently Asked Questions
Q: How much does a temperature sensor cost in Bangladesh?
It depends on the type. Basic sensors like the LM35 start at around ৳80–150. Mid-range options like the DHT22 or DS18B20 run ৳200–420. Specialty sensors like the MLX90614 go up to ৳990–1,140.
Q: What is the price of PT100 temperature sensor in Bangladesh?
PT100 RTD probes are priced between ৳490 and ৳800 depending on probe length and specification. Industrial-grade versions with transmitters can reach ৳990 or more.
Q: What are the main types of temperature sensors?
The four main types are: thermistors (NTC/PTC, used in the W1209), RTDs (like PT100, high precision), thermocouples (K-type, for high temperatures), and semiconductor sensors (LM35, DHT11, DS18B20 — most common in DIY projects).
Q: What is the price of a temperature sensor for Arduino in Bangladesh?
The most popular Arduino-compatible sensors are the DHT11 (৳130–280), DHT22 (৳350–420), LM35 (৳80–160), and DS18B20 (৳200–280). Any of these work directly with Arduino out of the box.
Q: Which temperature sensor is best for beginners?
The DHT11 is the most beginner-friendly — low cost, digital output, and thousands of tutorials available online. Step up to the DHT22 once you need better accuracy.
