Greenlee AT8L LAN Tone Generator for Network Installers is the most popular tone generator in that field.  Greenlee AT8L is also used by techs and installers working with LAN, telecom, security and CATV wires.  This tone generator not only sends the signal tone, but also invokes blinking of a hub or switch port light for easier identification.

Greenlee 200FP Filter Tone Probe for Cable Identification is designed as a handheld tone probe for tracing voice, data, and video cables.

JDSU LB100 Lil Buttie Telephone Test Set is a Lil' Buttie with piercing clip set.: Hands free butt set with headset. At half the size and half the weight, the Lil' Buttie sets a new standard in field butt sets. Former Test-Um LB100 Lil Buttie Telephone Test Set .

JDSU TT300 Tone and Probe Set for Cable Identification is designed as a handheld tone probe for tracing network, telephone, coax, and audio cables. The JDSU TT300 features audible and visual indications, speaker phase testing when used with Resi-Toner, coax cable tracing even on active systems, an integrated RJ11 jack for direct telephone hookup, 60 cycle noise canceling mode, and compatibility with any analog tone generator.

Extech MO520 Optical Power Meter with 1300nm Light Source features: Fiber certification with high accuracy and high resolution for multimode and single mode applications; Wide 70dB dynamic range of +5dBm to -65dBm with ±0.15dB accuracy; Compact size with ABS splash proof case; Internal memory stores up to 1000 measurements and physical fiber characteristics for up to four sites; 1300nm built-in light source; User friendly interface with alpha numeric membrane keypad for easy entry of testing parameters for documentation including site name, date, fiber type and length, connectors and splice

Extech MO510 Fiber Optic Power Meter with 850nm Light Source features: Fiber certification with high accuracy and high resolution for multimode and single mode applications; Wide 70dB dynamic range of +5dBm to -65dBm with ±0.15dB accuracy; Compact size with ABS splash proof case; Internal memory stores up to 1000 measurements and physical fiber characteristics for up to four sites; 850nm built-in light source; User friendly interface with alpha numeric membrane keypad for easy entry of testing parameters for documentation including site name, date, fiber type and length, connectors and splic

Radiodetection Genny4 Transmitter works in conjunction with CAT4 Plus Cable Locator. Radiodetection Genny4 Transmitter provides dual-frequency signal output. Such dual frequency of Genny4 Transmitter allows for general purpose locates at 33kHz frequency and small diameter locate with second frequency. Radiodetection Genny4 Transmitter also comes with signal booster enables locates at longer distances and easier.

Radiodetection gCAT4 Plus Underground Cable Locator EN27 CALSafe with GPS is the newest improvement and successor in the CAT4 Plus line of cable locators. The Radiodetection cable and pipe locator gCAT4 Plus comes with innovative features including Data logging, SWING, GPS, CALSafe, and StrikeAlert. The gCAT4 Plus cable locator features Dynamic Overload Protection and onscreen depth estimation. Radiodetection gCAT4 Plus is the best cable locator in its class and now features GPS to improve reporting as well as Bluetooth to sync to the online CAT Manager for report creation.

Platinum Tools TCC200 Coax Clarifier Cable Tester and Office Identifiers Kit simplifies the process of making clear “dark” un-powered coax cable networks by identifying cable faults, displaying cable run quality, measuring cable lengths up to 1,500 ft, or wiremapping up to 12 coax locations. The T3 Innovation CC200 can also detect Coax RF Remotes through splitters, can be easily field-calibrated, and can produce a traceable tone on the line.

Radiodetection eCAT4 Plus Underground Cable Locator EN64 with Data and Swing is the newest improvement and successor to CAT3 Plus cable locator. Radiodetection cable locator and pipe locator eCAT4 Plus comes with innovative features enabling operators to locate cables faster and with greater precision. The eCAT4 and eCAT4 Plus cable locator features Dynamic Overload Protection that filters out interference even from nearby high-voltage cables. Radiodetection eCAT4 Plus is the best cable locator in its class.