Features: Batteries and lithium batteries can be used, and the battery status can be visually displayed; Built-in switch, no need to connect an external control switchs, easy to install and use;...

Feature: Driver chip: SSD1309. Support interface: IIC/SPI. Resolution: 128 x 64. Display size: 2.42 inches. Display color: white/blue/yellow/green (optional). Module size: 71 x 43.5 (mm). Glass size: 60.5 x 37.00...

Specification:  Name: Electronic Calendar (assembled). Operating voltage: DC9-12V.  Operating current: ≤90mA.  Dynamic current: ≤160mA.  Display color: Red/Green/Blue (optional).  Panel language: English.  Finished product size: 228 x 160 x 38mm.  Net...

Feature: Reverse does not burn, the number does not shake. Digital tube: 36 x 14 x 13mm (L x W x H). Board: 35 x 16mm. Power supply: 7-30V, high...

Feature: Reverse does not burn, the number does not shake. Digital tube: 61 x 29 x 17.5mm (L x W x H). Board: 58 x 26 x 17.5mm (L x W...

Feature: Reverse does not burn, the number does not shake. Digital tube: 61 x 29 x 17.5mm (L x W x H). Board: 58 x 26 x 17.5mm (L x W...

Specifications:  Power requirement: DC 8-15V.  Measure range: 5-9999RPM.  Clear zero: Automatic.  Display refresher rate: 3 Times/Sec.  Measure indication: RPM<5000, ±2,  RPM>5000, ±3.  Display: Green 0.56" LED.  Response frequency: 100HZ.  Tachometer...

Description:  This led matrix clock using two black translucent acrylic to fixed up, include the pcb, screw, screw nuts and spacing column are all black.  it looks mystery when it...