A high-conversion studio product shot of the red and black Bosch MS90 Professional Test Leads pair isolated against a clean white background. The image clearly displays the coiled premium double-insulated silicone cables transitioning to sharp diagnostic probe tips with removable protective caps, alongside their corresponding right-angle shrouded terminal connection plugs.
The Bosch MS90 double-insulated silicone test lead wire set shown in a real-world application, plugged into a rugged digital multimeter positioned on a dusty, concrete jobsite workbench. The flexible red and black electrical testing cables are laid out across the work surface near heavy industrial wiring, showing off their durability under demanding field diagnostic and troubleshooting conditions.
Official product warranty card information graphic for the Bosch Measuring and Layout Tools lineup set against a dark blue backdrop. The marketing graphic outlines a standard 1 year tool limited warranty policy with an added 1 year bonus coverage extension available when the customer registers the diagnostic accessory online within eight weeks of purchase.
A high-conversion studio product shot of the red and black Bosch MS90 Professional Test Leads pair isolated against a clean white background. The image clearly displays the coiled premium double-insulated silicone cables transitioning to sharp diagnostic probe tips with removable protective caps, alongside their corresponding right-angle shrouded terminal connection plugs.
The Bosch MS90 double-insulated silicone test lead wire set shown in a real-world application, plugged into a rugged digital multimeter positioned on a dusty, concrete jobsite workbench. The flexible red and black electrical testing cables are laid out across the work surface near heavy industrial wiring, showing off their durability under demanding field diagnostic and troubleshooting conditions.
Official product warranty card information graphic for the Bosch Measuring and Layout Tools lineup set against a dark blue backdrop. The marketing graphic outlines a standard 1 year tool limited warranty policy with an added 1 year bonus coverage extension available when the customer registers the diagnostic accessory online within eight weeks of purchase.
BOSCH

Bosch Test Leads MS90 Double Insulated Silicone Probe Set (CAT IV 600V 10A Removable Tip Caps Multimeter Clamp Meter Voltmeter Accessory)

In stock
SKU: MS90
$33.99 USD

Description

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Bosch MS90 Double-Insulated Silicone Professional Test Lead Cable Set

The Bosch MS90 Professional Test Lead Cable Set operates as a commercial-grade electrical diagnostic accessory engineered to provide flexible signal transmission and shock protection during electrical circuit testing. Constructed with double-insulated silicone jackets that resist kink binding and extreme thermal shifts without cracking, this test lead pair features removable protective tip shrouds, non-slip rubberized grips, and a 10A current capacity. Rated for CAT IV 600V / CAT III 1000V applications with protective caps attached (and CAT II 1000V without caps), these replacement measuring probes fit Bosch GDM600-15 multimeters, GMC600-15 clamp meters, GFM1000-15 fork meters, and GVT600-13 voltage testers to isolate short circuits and verify terminal voltage across commercial control systems.

Best Used For:

  • Commercial Distribution Panel Testing: Probing industrial circuit breakers and high-energy terminal blocks safely using the CAT IV 600V / CAT III 1000V capped configuration.
  • Sub-Surface Circuit Board Diagnostics: Removing the protective tip shrouds to expose fine metal contacts for deep-set pin testing inside HVAC control boards.
  • Sub-Zero & Outdoor Field Work: Executing electrical testing in freezing environments using double-insulated silicone cables that maintain flexibility without stiffening.

Key Performance & Safety Features

  • Double-Insulated Silicone Jacket: Ultra-flexible silicone cable construction resists physical abrasion, high thermal heat, and cold-weather cracking.
  • Dual-Rating Safety Shroud Architecture: Certified to CAT IV 600V / CAT III 1000V (10A) with tip caps attached, and CAT II 1000V (10A) with caps removed.
  • Removable Protective Tip Caps: Modular probe shrouds adjust exposed metal tip length to prevent accidental arc flashes between adjacent energized contacts.
  • Tactile Anti-Slip Rubberized Grips: Overmolded handle contours provide a secure, comfortable grip when working inside wet or greasy electrical panels.
  • Non-Conductive Protective Coating: Specialized probe shielding minimizes stray measurement interference for consistent diagnostic readings.
  • Universal Bosch Meter Fitment: Plug-and-play compatibility across Bosch digital multimeters, clamp meters, fork meters, and auto-ranging testers.

What's Included

  • (1) Set of Bosch MS90 Professional Test Leads (Red and Black Pair)
  • (2) Removable Protective Probe Tip Caps

Technical Specifications

Brand Name Bosch
Model Number SKU MS90
Cable Insulation Material Double-Insulated Heavy-Duty Silicone
Maximum Amperage Rating 10 Amps Continuous
Safety Rating (With Caps Attached) CAT IV 600 V / CAT III 1000 V
Safety Rating (Caps Removed) CAT II 1000 V
Probe Grip Style Profile Ergonomic Non-Slip Rubber Overmold
Compatible Bosch Meters GDM600-15, GMC600-15, GFM1000-15, GVT600-13
Package Overall Length 2.205 in.
Package Overall Width 1.732 in.
Package Overall Height 7.283 in.
Total Accessory Weight 0.212 lbs. (3.39 oz.)
Total Pack Quantity 1 Pair (1 Red Probe, 1 Black Probe)

Pro-Tip: Always leave the protective tip caps installed when probing high-energy commercial distribution panels or main disconnect switches. The caps expose only a small fraction of the metal tip, preventing accidental cross-phase short circuits if your hand slips between closely spaced busbars or terminal screws.