Best Optical Transmitters

Fluke 725 Multifunction Process Calibrator

The Fluke 725 Multifunction Process Calibrator is a powerful, yet easy-to-use field calibrator. Use the measure and source functions to test and calibrate almost any process parameter.
Small, streamlined shape, rugged, reliable design stands up to field use.
Easy to read measure/source screen lets you view input and output simultaneously.
Measure volts, mA, RTDs, thermocouples, frequency, and ohms to test sensors and transmitters.
Source/simulate volts, mA, thermocouples , RTDs, frequency, ohms, and pressure to calibrate transmitters.

Two Transmitters and one Dual-Channel Receiver can work in two Way: One Receiver to Two Transmitters, or One Receiver to One Transmitter..
48 UHF Channels, More than 6 Hours Continuous Operation, Operation range can reach up to 300'/100m(without obstacle)..
Selectable STEREO/MONO Mode. Plug and Record Functionality. Programmable Mute function..
Mic and Line-in. Camera-Mountable Receiver. Monitoring sound by headphone output(Receiver)..
Includes Omni-Directional Lavalier Mic, XLR output cable, Stereo mini plug cable and Pergear Clean Kit..

Linear MVP 3 Channel Gate Receiver, 318 MHz.
12 volt, three channel, eight wire MVP gate receiver, external antenna connector, whip antenna included, compatible with Allstar classic, Allstar, and Pulsar dipswitch transmitters and MVP transmitters, 318MHz.

Subminiature omnidirectional cartridge offers superior clarity and enhanced plosive protection with no proximity effect.
Terminated with TQG / TA4F connector for direct connectivity to Shure wireless body pack transmitters.
Ultra-lightweight, comfortable, flexible design is stable and easy to place over either ear.
Comma Shield technology guards against interference from cellular RF devices and digital Body pack transmitters.

Subminiature omnidirectional cartridge offers superior clarity and enhanced plosive protection with no proximity effect.
Terminated with TQG / TA4F connector for direct connectivity to Shure wireless body pack transmitters.
Ultra-lightweight, comfortable, flexible design is stable and easy to place over either ear.
CommShield Technology guards against interference from cellular RF devices and digital body pack transmitters.
Kevlar-reinforced soft flex cable. Form Factor : Headworn.

4-Channel Remote Control Transmitters for Gate Openers (two pack).
Compatibility: works will all ALEKO swing gate openers in the AA, AS, and GG series.

The 5818MNL is a magnetic contact sensor that provides concealed protection for doors or windows..
The 5800 Series of door and window transmitters provide the most reliable, convenient and cost effective solutions for security protection. These devices are powerful and versatile enough to help solve even the toughest, most labor intensive installa.
With a demonstrated outdoor range of over a mile, the 5800 Series has the best performance of any transmitters available today..
Includes self-contained transmitter and reed sensor Virtually disappears once installed Easy replaceable AAA Lithium battery.
0.5 gap (transmitter to magnet) \Features a tapered cylinder for easy and flush fit Dimensions: 0.75″ diameter x 3.0″ length.

Before purchasing, please ensure that the wireless frequency band you select works in your area..
Includes BLX88 dual-channel receiver, 2 BLX1 bodypack transmitters, 2 CVL lavalier microphones, lavalier clip, windscreens and user guide.
BLX1 wireless bodypack transmitters each work for up to 14 hours on two AA batteries (included).
CVL lavalier microphones wire to BLX1 bodypacks via 4-pin TA4F (TQG) connector.
300 feet (91 m) operating range (line of sight).