Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Chip Model | MAX31865 |
| Supported Sensor Types | PT100, PT1000 RTD |
| Interface Protocol | SPI (Serial Peripheral Interface) |
| Operating Voltage | 3.0V to 3.6V |
| Temperature Range | -200°C to +850°C (dependent on RTD) |
| Resolution | 15-bit (0.03125°C per LSB) |
| Accuracy | ±0.5% typical at room temperature |
| Fault Detection | Open circuit, High/Low voltage monitoring |
| Board Dimensions | 22mm x 18mm |
| Connector Type | 5-pin Screw Terminal Block |
Anonymous
Mar 19, 2026
Rating: 5/5
Reliable for HVAC monitoring
I am using three of these to monitor temperatures in different zones of my home automation system. They have been running 24/7 for two months without any drift or errors. Highly recommended.
Anonymous
Mar 14, 2026
Rating: 5/5
Perfect for Arduino Projects
This module works flawlessly with my Arduino Uno. The SPI library provided in the examples made integration very simple. Readings are stable and match my calibrated thermometer within a fraction of a degree.
Anonymous
Mar 08, 2026
Rating: 5/5
Excellent replacement for expensive units
We needed several temperature data loggers for a school project. These modules paired with a Raspberry Pi offered professional-grade results at a fraction of the cost of commercial units.
Anonymous
Mar 07, 2026
Rating: 5/5
Robust fault detection
The built-in fault detection is a lifesaver. It immediately flags when the RTD wire gets disconnected, which prevents my control system from reading erroneous low temperatures. Very reliable module.
Anonymous
Mar 02, 2026
Rating: 3/5
Works but documentation could be better
The hardware itself seems solid, but I struggled a bit with the register configuration for 4-wire vs 3-wire setups. Once I found a forum post explaining the bias resistor settings, it worked fine.
Anonymous
Mar 02, 2026
Rating: 4/5
Great accuracy, needs careful wiring
The sensor is very accurate once set up correctly. I had some noise issues initially because my SPI wires were too long, but after shortening them and adding a capacitor, it works perfectly. Good value for the price.
Q: Does the package include the PT100 probe?
A: No, this listing is for the detector module only. The PT100 or PT1000 resistance temperature detector probe must be purchased separately.
Q: What is the maximum update rate for temperature readings?
A: The conversion time is typically 60ms. You can read new data approximately every 60-70ms depending on your SPI clock speed and processor overhead.
Q: Does this module support 2-wire PT100 sensors?
A: Yes, it supports 2, 3, and 4-wire configurations. For 2-wire setups, you will need to bridge the appropriate terminals on the screw block as indicated in the datasheet.
Q: Is a separate power supply required for the RTD sensor?
A: No, the MAX31865 provides the necessary excitation current for the RTD directly from the module. You only need to power the module itself with 3.3V.
Q: Can I use this with a 5V microcontroller like standard Arduino?
A: The module operates at 3.3V logic. While it can be powered by 5V VIN on some boards, the SPI pins require 3.3V levels. We recommend using a level shifter if your MCU is strictly 5V logic to avoid damage.
ORDER Industrial Lint-Free Wipe Dispenser - Galvanized Stainless Steel Stand for Large Paper Rolls
$170.00
Nujiang Bridge Foundation High-Speed Rail Bridge Insulation Steam Generator, Dual-Fuel Oil and Gas Steam Boiler
$4,620.00
Lifting Chain Slings - Single, Double, and Multi-Leg G80 Manganese Steel Hook Chains for Overhead Cranes
$63.00
Japanese Braces Storage Case – Silicone Cleaning Pouch for Orthodontic Retainers, Portable Travel Pack
$13.50
CANDLE.LAB | High-Concentration Liquid Candle Dyes for Soy, Beeswax, Paraffin & Gel Wax
$29.90
Electric Milk Separator, Butter Separator, Milk Frother for Home and Commercial Use, Skimming Equipment for Cow and Goat Milk
$837.00
Commercial Roast Duck Warmer Display Cabinet, Countertop Heating Unit for Crispy Pork Belly, Roast Meat, and Goose
$444.50
Variable Frequency Drive 7.5KW Brand New Original
$2,312.00
Inverted Water Dispenser Stand for Pure Water, Office Drinking Water Rack, Convenience Store and Supermarket Shelf
$116.79
RSL Electric Guitar Series by Rockschool - ABRSM Edition 2018 Update, Grades 0-8 Complete 9-Volume Set
$30.00
Handmade Soap and Baking Cake Silicone Mold - Round 6-Cavity
$16.50
Meile Childhood Sponge Stamp Set - Kids' Paint Printing Tools with Sponge Brushes for Kindergarten Art
$14.30
2019 Jiangxi Isuzu Ruimai Lingtuo DMAX - Brand New Original Thickened Wear-Resistant Tires
$302.80
Pirelli P7 Run-Flat Tires 225 245 255 275 35 40 45 50 R17 18 19 20 21
$340.00
Lint-Free Industrial Wiping Cloth - Oil-Removing Absorbent Paper for Car Paint Wax and Grease Removal
$123.00
Henkel Loctite 495 Adhesive Genuine 401 406 416 460 496 Instant Glue Strong Industrial Adhesive for Metal and Plastic
$6.00
Industrial Ultrasonic Emulsification and Dispersion System - Anti-Foam Vibration for Pipeline Inner Wall Cleaning
$31,250.00
Commercial Small Electric Food Warmer Display Case for Fried Chicken, Burgers, Pies, Egg Tarts, and Youtiao - Constant Temperature Heating Cabinet for Breakfast
$623.00
Universal Triangular Stand for Mineral Water Bottles – Inverted Dispenser Rack for Water Coolers and Bottled Water Extraction
$5.10
Manufacturer Supply By-Product Cleaning Equipment, Fully Automatic Cylindrical Pig Tripe Degreaser and Cleaner for Cattle and Sheep Stomachs
$1,600.00
CANDLE.LAB | DIY Aromatherapy Candle Supplies, Natural Refined White Beeswax Pellets, Handmade Soap Materials #27
$9.00
![No-Shave Hair Transplant by Yongxiang Dean Team [Premium Customization], Unlimited Graft Count, Pain Management for Transplant Area](https://www.gosteppe.com/cache/small/product/269234/legacy-main-b28b879c33f1fe08b5eba226.webp)
No-Shave Hair Transplant by Yongxiang Dean Team [Premium Customization], Unlimited Graft Count, Pain Management for Transplant Area
$200,000.00
Kitchen Sink Drainage Mat - Sloped Countertop Drying Pad with Foldable Narrow Edges, Faucet Splash Guard, Storage Mat
$3.57
UE5 Unreal Engine 5.2-5.7 Physical Assembly System Physics Plugin
$0.50
![[Damai Holds Micro-Needle Hair Transplant Patent] Female Hairline | Non-Shaven Transplant 1000 Units | Forehead](https://www.gosteppe.com/cache/small/product/269231/legacy-main-b004541637d9aaa9d8c19288.webp)
[Damai Holds Micro-Needle Hair Transplant Patent] Female Hairline | Non-Shaven Transplant 1000 Units | Forehead
$17,000.00
Air Baffle for ABB ACS550-X2 R8 IP21 VFD
$3,450.00
Outdoor Waterproof Shockproof EDC Storage Box, Sealed Gear Case for Small Items
$5.10
Zhizhi Lin Zexu Small Regular Script Diamond Character Card Kaishu Copybook Porcelain Blue Gold Characters Brush Calligraphy Practice Folding Card
$68.00
Maotaizi Dual-Tip Dual-Color Glitter Markers for Kids - Non-Toxic Soft Tip Colored Pens for Elementary Art
$16.90
Tire Removal Socket Wrench and Spare Tire Tool Kit for Zhengzhou Nissan Paladin, Aoting, and Dongfeng Ruiqi Pickup Trucks
$16.90
![[Trial Pack] Xianlang Complete Cat Treat Sticks Meal Packs Main Course Cans Freeze-Dried Cat Food Sample Snacks Gift Set](https://www.gosteppe.com/cache/medium/product/208273/legacy-main-9ec245ebf781f65a434ba854.webp)
