Key Features :

1. Model : 28BYJ-48
2. Number of Phase : 4
3. Speed Variation Ratio : 1/64
4. Stride Angle : 5.625? /64
5. Rated voltage : DC [5v – 12v]
6. DC resistance : 5v: 60??7%(25?); 12v: 130??7%(25?)
7. Frequency : 100Hz
8. Idle In-traction Frequency : > 600Hz
9. Idle Out-traction Frequency : > 1000Hz
10. In-traction Torque >34.3mN.m(120Hz)
11. Self-positioning Torque : 5v: >29.3mN.m; 12v: >42.1mN.m
12. Friction torque : 600-1200 gf.cm
13. Pull in torque : 300 gf.cm
14. Insulated resistance >10M?(500V)
15. Insulated electricity power : 600VAC/1mA/1s
16. Insulation grade : A
17. Rise in Temperature <40K(120Hz)
18. Noise <35dB(120Hz,No load,10cm)

?Key Features :

1. – Diameter:68mm
2. – Width:26mm
3. – Other size refer to below picture
4. – Weight:40g/pc

Key Features :

1. 1. Stepper motor is known by its property to convert a train of input pulses into a precisely defined increment in the shaft position.
   2. This is a high-quality motor that can be used for a long time without stuck.
   3. It has a quite stable performance during work and will not lose step.
   4. Low noise and big torque, this is a great choice if you need a stepper motor.
   5. Stepper motor can be widely used for a 3D printer, CNC engraving machine, etc.

?Key Features :

• Ceramics thermoelectric Cooler semiconductor module TEC1-12706
• Small module.
• Its work is characterized by side refrigeration and side fever.
• Hot and cold on both sides of the temperature difference of 68 degrees
• Connected to the 12-volt power supply cooling piece on both sides there will be the difference in temperature, side cold side of the heat, do not long power cooler radiator, otherwise, it will cause cooler internal overheating and burning.
• Quality tested cooling cells.
• Solid-state, vibration-free, noise-free.
• Simple to install and operate.
• Fitted with 6-inch insulated leads

?Key Features :

1. Measuring humidity and?temperature.
2. Large LCD display, easy for reading.
3. Temperature unit is switchable.
4. Desk-top placing or wall hanging, easy to use.
5. Made of high-quality material.
6. Widely used in indoor temperature and humidity measurement, apply in?the lab, cold chain transport, warehousing and other occasions.
8. Powered by 2 x 1.5v LR44 button cell.
9. Comes with a probe that is easy to use.
10. Perfect for use in incubators, brooders, homebrew room at any other place, the monitoring of temperature and humidity required.

?Key Features :

1. Stable and reliable chipset CP2102.
2. USB specification 2.0 compliant with full-speed 12Mbps.
3. Standard USB type A male and TTL 6pin connector.
4. 6pins for 3.3V, RST, TXD, RXD, GND & 5V.
5. Baud rates: 300 bps to 1.5 Mbps
6. Byte receive buffer; 640 byte transmit buffer.
7. Hardware or X-On/X-Off handshaking supported.
8. Event character support Line break transmission.
9. USB suspend states supported via SUSPEND pins.
10. Temperature Range: -40 to +85.
11. Size: 42mm X 15mm.
12. Weight: 4g