Variable in-line optical attenuators,also know as adjustable in-line optical attenuator or short as VOA, are used to permit dynamic control of optical power levels in a fiber. It can be applied to adjust power level of signal in the optical communication at the output of light sources, E/O converters and for the linear or dynamic range of power meter. Furthermore, they can the used in optical amplifier systems to balance the gain across the different operating wavelengths.
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Custom Dual Frequency RFID Chip Keyfob is made of ABS material with rfid chip and antenna . It will be durable and injection ABS case then sealing rfid chip under ultrasonic machine without any space sideview so that you can use them in out-door harsh environment and waterproof ,This type rfid keyfob has enough space and can set up dual frequency rfid inside , you can check with your project and chose correctly rfid chip let us to do ,such as 13.56mhz with 125khz , 13.56mhz with 860-960mhz or 125khz with 860-960mhz ,etc .
This is a kind of stainless steel tube mini module PLC Splitter 1:16 with sc/lc/fc/st in 0.9mm cable,the cable length is usually 1-1.5m.Available wavelength is:1260-1650nm.
AC to DC 12V 120W Constant voltage LED power supply
1.Nurse call button Any language any logo is acceptable 2.2 key: CALL, CANCEL 3.Nurse call button cord has a RJ11 port to connect a additional key to call
Medium voltage automatic power factor correction/reactive power compensation systems using capacitor banks are used everywhere that motors are still directly operated without power electronics, or other consumers with a low inductive cosφ place strain on the grid with reactive power in addition to their active-power requirements. Local supply of this reactive power by means of compensation systems relieves the burden on the supply grid and reduces losses.
This waterproof Rfid Keyfob is small and exquisite appearance, durable, not easy to fade. The product is waterproof, shockproof, anti corrosion. Can be hunged on a key ring, easy to carry.
two way intercom kits Volume of master station and substation can be adjusted separately With recorder jack, can connect record external equipment Dimension: 138*98*56mm
Fiber optic closures provide a protected area for the spliced sections to live, keeping them away from any hazards. Any of these that come in contact with the wires can lead to damage. Bugs may bite through the protective layers, while moisture can flood the cabling. Even things like vandalism and damage from car accidents can be troublesome. A rugged, hermetically sealed fiber optic splice closure can better protect cables and the sensitive data that runs through them from many of the dangers they face.
10-15 volt DC microwave motion sensor dual PD for tri-proof and highbay light
Bluetooth networking microwave motion sensor 120-277VAC master slave control parameter set by mobile APP
Allen-Bradley 1756-IB16 ControlLogix Digital Input Module Allen-Bradley 1756-IB16 ControlLogix Input Module, 10-31 VDC, 16 Points (20 Pin). Number of Inputs: 16; Voltage, On-State Input, Nom: 12/24V DC; Operating Voltage: 10-31.2V DC; 1756-IB16 ControlLogix Input Module can be used with 1756-TBNH or 1756-TBSH Removable Terminal Block Housing.
The rewritable smart contactless card can be provide different visit password or logical encryption versions, higher security.
laundry tag RFID, PPS laundry tag, ISO15693 PPS laundry tag
Easy Assembly Microwave Movement Sensor On Off Switch Sensor High Frequency
Active Power filter(APF) is connected in parallel with non-linear loads, and uses one set of CT to detect the load current. It calculates each order harmonic current by FFT algorithms in its DSP microchips, and then generates a compensating current with the same amplitude but opposite phase angles to the detected harmonic current, which cancels out the original load harmonics.Not only eliminates harmonic current from the load side, but it also mitigates harmonic voltage caused by harmonic currents. The AHF system can also improve power factor (PF) and correct load imbalances in the power system.
Active harmonic filter is connected in parallel with non-linear loads, and uses one set of CT to detect the load current. It calculates each order harmonic current by FFT algorithms in its DSP microchips, and then generates a compensating current with the same amplitude but opposite phase angles to the detected harmonic current, which cancels out the original load harmonics.Not only eliminates harmonic current from the load side, but it also mitigates harmonic voltage caused by harmonic currents. The APF system can also improve power factor (PF) and correct load imbalances in the power system.
EPRO Dual Channel Rotational Speed Monitor