Bosch PRO GFM1000-15 Open Fork Meter complete kit displaying all original included components. The true RMS electrical multi tester tool sits vertically next to its premium flexible red and black silicone test leads, two standard AA batteries for power flexibility, and a heavy duty zippered black fabric carrying pouch featuring the red Bosch logo.
A close up front angled view of the standalone Bosch PRO GFM1000-15 Professional True RMS Open Fork Meter electrical tester. The design shows the open jaw testing fork, blue and black rubber reinforced housing, large red rotary selection dial, dual push buttons, and an inverted high contrast LCD screen displaying an active 200.0 Amp reading.
Bosch PRO GFM1000-15 Open Fork Meter infographic diagram mapping out core tool features for enhanced search engine algorithms. Diagnostic indicator lines against a dark blue background call out the compact jaw opening, jobsite tough construction, True RMS technology, easy to read LCD display, and high quality silicone test leads.
An overhead view of a technician removing the rear battery compartment cover plates from the back of the Bosch PRO GFM1000-15 multi tester. The text banner below reads Power flexibility for use with 3.7V Li-Ion or AA batteries, highlighting dual fuel choices and automatic safety power cut off engineering.
The rugged Bosch PRO GFM1000-15 Digital Fork Meter standing vertically on a dusty jobsite surface in front of a coiled industrial power cable. The lower marketing graphic reads Jobsite tough with IP54 rating and rubber-reinforced housing, demonstrating high protection against heavy dust and water exposure.
A close up view of an electrician using the open fork jaw of the Bosch PRO GFM1000-15 electrical multi tester to non invasively check a circuit breaker line wire. The built in LED flashlight illuminates the tight wiring, with text stating Compact meter to detect voltage to 1000V and current to 200 A AC.
Official product warranty card information for the Bosch measuring and layout tools lineup. The layout features text highlighting a 1 year tool limited warranty, plus an additional 1 year coverage extension when you register the newly purchased product online within eight weeks.
An electrician using the Bosch PRO GFM1000-15 Open Fork Meter to diagnose lines inside an open electrical panel breaker box. The technician uses the test leads and multi tester simultaneously to check residential or commercial electrical systems with safety certified CAT IV 600V protection.
An industrial electrician wearing protective gear using the integrated LED flashlight on the Bosch PRO GFM1000-15 open jaw multi tester. The bright light cleanly illuminates a dark mechanical control terminal array to ensure safe, precise diagnostic troubleshooting on complex non linear loads.
A technician running diagnostic maintenance inside a large commercial electrical equipment cabinet utilizing the Bosch PRO GFM1000-15 true RMS fork tester. The image showcases one handed functionality and high visibility reading capture on the high contrast inverted LCD display panel.
An industrial electrician troubleshooting a large commercial circuit panel while utilizing the Bosch PRO GFM1000-15 Open Fork Meter. The true RMS electrical tester is mounted hands free to the side of the metal cabinet door with a black magnetic hanging solution, clearly displaying a voltage reading on its high contrast inverted LCD panel.
A close up view of a field technician inserting red and black premium silicone test leads into a wall outlet to run safety and voltage continuity tests. The Bosch PRO GFM1000-15 diagnostic electrical multi tester rests nearby on the carpeted floor, capturing real time system readings on its digital display panel.
An overhead close up view of a technician's hands holding the unlatched battery bay door and sealing components away from the reverse side of the Bosch PRO GFM1000-15 Open Fork Meter. The image demonstrates the internal battery terminal layout and rugged jobsite engineering on a textured concrete surface.
Bosch PRO GFM1000-15 Open Fork Meter complete kit displaying all original included components. The true RMS electrical multi tester tool sits vertically next to its premium flexible red and black silicone test leads, two standard AA batteries for power flexibility, and a heavy duty zippered black fabric carrying pouch featuring the red Bosch logo.
A close up front angled view of the standalone Bosch PRO GFM1000-15 Professional True RMS Open Fork Meter electrical tester. The design shows the open jaw testing fork, blue and black rubber reinforced housing, large red rotary selection dial, dual push buttons, and an inverted high contrast LCD screen displaying an active 200.0 Amp reading.
Bosch PRO GFM1000-15 Open Fork Meter infographic diagram mapping out core tool features for enhanced search engine algorithms. Diagnostic indicator lines against a dark blue background call out the compact jaw opening, jobsite tough construction, True RMS technology, easy to read LCD display, and high quality silicone test leads.
An overhead view of a technician removing the rear battery compartment cover plates from the back of the Bosch PRO GFM1000-15 multi tester. The text banner below reads Power flexibility for use with 3.7V Li-Ion or AA batteries, highlighting dual fuel choices and automatic safety power cut off engineering.
The rugged Bosch PRO GFM1000-15 Digital Fork Meter standing vertically on a dusty jobsite surface in front of a coiled industrial power cable. The lower marketing graphic reads Jobsite tough with IP54 rating and rubber-reinforced housing, demonstrating high protection against heavy dust and water exposure.
A close up view of an electrician using the open fork jaw of the Bosch PRO GFM1000-15 electrical multi tester to non invasively check a circuit breaker line wire. The built in LED flashlight illuminates the tight wiring, with text stating Compact meter to detect voltage to 1000V and current to 200 A AC.
Official product warranty card information for the Bosch measuring and layout tools lineup. The layout features text highlighting a 1 year tool limited warranty, plus an additional 1 year coverage extension when you register the newly purchased product online within eight weeks.
An electrician using the Bosch PRO GFM1000-15 Open Fork Meter to diagnose lines inside an open electrical panel breaker box. The technician uses the test leads and multi tester simultaneously to check residential or commercial electrical systems with safety certified CAT IV 600V protection.
An industrial electrician wearing protective gear using the integrated LED flashlight on the Bosch PRO GFM1000-15 open jaw multi tester. The bright light cleanly illuminates a dark mechanical control terminal array to ensure safe, precise diagnostic troubleshooting on complex non linear loads.
A technician running diagnostic maintenance inside a large commercial electrical equipment cabinet utilizing the Bosch PRO GFM1000-15 true RMS fork tester. The image showcases one handed functionality and high visibility reading capture on the high contrast inverted LCD display panel.
An industrial electrician troubleshooting a large commercial circuit panel while utilizing the Bosch PRO GFM1000-15 Open Fork Meter. The true RMS electrical tester is mounted hands free to the side of the metal cabinet door with a black magnetic hanging solution, clearly displaying a voltage reading on its high contrast inverted LCD panel.
A close up view of a field technician inserting red and black premium silicone test leads into a wall outlet to run safety and voltage continuity tests. The Bosch PRO GFM1000-15 diagnostic electrical multi tester rests nearby on the carpeted floor, capturing real time system readings on its digital display panel.
An overhead close up view of a technician's hands holding the unlatched battery bay door and sealing components away from the reverse side of the Bosch PRO GFM1000-15 Open Fork Meter. The image demonstrates the internal battery terminal layout and rugged jobsite engineering on a textured concrete surface.
BOSCH

Bosch PRO GFM1000-15 Open Fork Meter True RMS Electrical Multi Tester 200A AC Current 1000V AC DC Voltage NCV Flashlight Tool

In stock
SKU: GFM1000-15
$185.00 USD

Description

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Accelerate Commercial Electrical Diagnostics with the Bosch PRO GFM1000-15

The Bosch PRO GFM1000-15 Professional Fork Meter is a revolutionary diagnostic solution engineered to accelerate system maintenance for electricians, facility technicians, and HVAC contractors. Featuring an open-jaw design, this powerful electrical tester enables non-invasive AC current measurements up to 200 Amps directly over conductors without breaking active circuits. Seamlessly integrated with high-performance True RMS technology, it accurately interprets distorted waveforms on complex commercial equipment, allowing for swift and reliable fault-finding in tight, high-density distribution environments.

Built for survival on demanding jobsites, the GFM1000-15 features a rubber-reinforced housing that is field-tested to withstand accidental drops from up to 6 feet and is protected by an IP54 dust and splash resistance rating. This all-in-one instrument records AC/DC voltages up to 1000 Volts and integrates specialized features like low-input impedance (LoZ V) to automatically eliminate phantom ghost voltages. Complete with a built-in non-contact voltage (NCV) detector, an integrated LED panel flashlight, and an uncompromised CAT IV 600V / CAT III 1000V certified safety rating, it delivers ultimate field confidence and reliable one-handed usability.

Key Features

  • Rapid Non-Invasive Diagnostics: Open-fork jaw design captures fast AC current measurements without lead connections or circuit interruptions.
  • Advanced True RMS Accuracy: Engineered to provide highly reliable, precise electrical readings on non-sinusoidal waveforms and active variable loads.
  • LoZ ghost Voltage Elimination: Low input impedance mode filters out misleading ghost voltage readings across adjacent live wiring runs.
  • Rugged Heavy-Duty Architecture: Rubber-molded ergonomic grip resists jobsite abrasion, drop-tested up to 6 feet with an IP54 weatherproofing rating.
  • Dual-Source Power Versatility: Operates universally on standard AA batteries or a professional 3.7V Lithium-Ion rechargeable pack for diminished downtime.
  • Integrated Safety NCV Sensor: Built-in non-contact voltage tester provides fast, audio-visual proximity checks before managing exposed wires.
  • High-Visibility Inverted Screen: Crystal-clear, high-contrast inverted LCD ensures immediate visibility inside unlit industrial enclosures or basements.
  • Premium Safety Compliance: Certified to elite CAT IV 600V and CAT III 1000V safety classes with integrated protective power cuts when battery doors open.

What's Included

  • (1) Bosch PRO GFM1000-15 True RMS Fork Meter
  • (1) Set of High-Quality Flexible Silicone Test Leads
  • (2) Standard AA Batteries

Specifications

Specification Parameter Value / Range
AC Current Range 200 A
AC Current Accuracy ± 3.0% + 3
AC Voltage Range 1,000 V
AC Voltage Accuracy ± 1.5 % + 5
DC Voltage Range 1,000 V
DC Voltage Accuracy ± 1.0 % + 2
Low Input Impedance (LoZ) Range 1,000 V
Resistance Maximum Range 60 MΩ
Frequency Measuring Range 10 Hz to 50 kHz
Drop Protection Rating 6 ft. (2 m)
Environmental Protection IP54 (Dust & Splash Proof)
Safety Class Rating CAT IV 600 V / CAT III 1000 V
Non-Contact Voltage (NCV) Yes (Integrated)
Integrated Torch Light Yes (High-Output LED)


Pro-Tip: When troubleshooting confusing modern lighting ballast setups or commercial HVAC controls, toggle the GFM1000-15 to LoZ mode. This pulls down stray capacitive ghost voltage created by parallel wire runs, confirming instantly whether you are tracking down an actual electrical fault or just a harmless induced field signal.