FLIR CM55 and CM57 Flexible Clamp Meters

FLIR CM55 & CM57
Flexible Clamp Meters

The FLIR Flexible Clamp Meters with Bluetooth® are ergonomic tools designed to simplify difficult current measurements. Made with a narrow flexible coil clamp, the CM55 and CM57 let you easily take measurements in tight or awkward spots — a difficult task with a traditional hard jaw clamp meter. With Bluetooth communication for remote viewing and data transfer to iOS® and Android™ devices via the FLIR Tools mobile app, quickly share and analyze data right from the jobsite.

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Take accurate measurements in tight or awkward spots

Snake the coil around obstacles with ease, even in deep, crowded cabinets

Tricky conductors conquered

True RMS AC Current up to 3,000 Amps for multiple conductor measurements

Inrush current

Measure hard and soft start-up inrush current spikes while equipment is ramping up

Standalone flexible clamp meter

Displays the readings you need for easy inspection and navigation

Bluetooth Connectivity

Connect to Android devices for remote diagnostics in hard-to-reach or hazardous areas. Multiple units wirelessly connect for remote viewing of multiphase systems. Also, upload data without the need for special cords with FLIR Tools Mobile.

Limited Lifetime Warranty with Registration


Bright, dual LED worklights

Work safely and easily in poorly lit locations – especially useful when the lights are out or obstacles block your inspection targets

Drop tested to 3 meters

Portable, lightweight, and tangle-free without compromising measurement range

Choose from two flexible coil lengths

  • CM55 - 10” (25.4cm) for easy maneuverability and compact convenience
  • CM57 - 18” (45.72 cm) for larger and multiple conductor measurements, double-wrap requirements, and deeper access

If you already own a clamp meter and are looking for a flexible accessory to easily take measurements in tight or awkward spots and get the best readings with your existing meter, check out the FLIR TA72/74 Universal Flex Current Probe Accessory  

Part Number CM55 CM57
Maximum AC current 3000A AC
AC response True RMS
AC current ranges and resolution 30.00A, 300.0A, 3000A
Basic AC current accuracy (of reading) ± 3.0% + 5 digits
Maximum resolution 0.01A
AC current bandwidth 45Hz – 500Hz (sine wave)
Inrush current Min 0.5A, 100mS
Data record mode 20000 points , 1 min sample rate
Positional error (distance from optimum) 0.6” (15mm) ±2.0%
1.0” (25mm) ±2.5%
1.4” (35mm) ±3.0%
1.4” (35mm) ±1.0%
2.0” (50mm) ±1.5%
2.4” (60mm) ±2.0%
Meter Data
Display 3000 count LCD with backlight
and multi‐function indicators
Max conductor diameter capacity 2.4" (6cm) 4.7" (12cm)
Flex coil length 10" (25cm) 18" (45 cm)
Flex coil diameter 0.3” (7.5mm)
Flex coil tip diameter 0.5” (13mm)
Work light Two white LEDs
Bluetooth range max 32' (10 m)
Wireless ID# max Up to 20
Power supply (2) 1.5V “AAA”
Drop test 9.8' (3m)
Agency approvals FCC Class B, CE, UL
Safety rating CAT IV 600V,CAT III 1000V
Standards EN61010-1, EN61010-2-032, EN61326-1
Warranty Limited lifetime with registration
FLIR CM55 and CM57 Flexible Clamp Meters  

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