# Fluke 115 multimeter: specs

> Handheld 6000-count true-RMS digital multimeter for voltage, current to 10 A, resistance, capacitance, frequency and diode test. Rated CAT III 600 V…

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Handheld 6000-count true-RMS digital multimeter for voltage, current to 10 A, resistance, capacitance, frequency and diode test. Rated CAT III 600 V by Fluke.

Every value cites its sourcePinout not published

[Buy on Compoden](https://compoden.com/products/fluke-115-true-rms-field-technicians-digital-multimeter)

## Specs

| Spec | Value | Source |
|---|---|---|
| DC voltage | 600.0 mV to 600.0 V; accuracy 0.5 % + 2 | source Specifications, DC voltage |
| AC voltage (true-RMS) | 600.0 mV to 600.0 V; 1.0 % + 3 (45 Hz to 500 Hz), 2.0 % + 3 (500 Hz to 1 kHz) | source Specifications, AC voltage |
| Current | 6.000 A and 10.00 A; AC 1.5 % + 3, DC 1.0 % + 3; 20 A overload for 30 s maximum | source Specifications, Current |
| Resistance | 600.0 ohm to 40.00 Mohm; 0.9 % + 2 (600.0 ohm), 0.9 % + 1 (6.000 kohm to 6.000 Mohm), 5.0 % + 2 (40.00 Mohm) | source Table 6 Accuracy Specifications (p.16) |
| Capacitance | 1000 nF to 9999 uF; 1.9 % + 2 up to 1000 uF, 5 % + 20 above 1000 uF | source Table 6 Accuracy Specifications (p.16) |
| Frequency | 99.99 Hz to 50.00 kHz (V or A input); 0.1 % + 2 | source Specifications, Frequency |
| Safety | IEC 61010-2-033 CAT III 600 V, 10 A; 600 V maximum between any terminal and earth ground; A input fuse 11 A 1000 V | source Specifications (p.14-15): Safety; General |
| Display | 6000 counts, updates 4 per second | source Specifications (p.14) |
| Battery | 9 V alkaline IEC 6LR61, 400 hours typical without backlight | source Specifications (p.15) |
| Operating temperature | -10 C to 50 C (storage -40 C to 60 C) | source Specifications (p.15) |

## Power

| | Value | Source |
|---|---|---|
| Supply | 9 V alkaline battery (IEC 6LR61) | source Specifications (p.15) |
| Current | 400 hours typical without backlight | source Specifications (p.15) |

## Pinout
We don't publish a pin table for this part: no official source we could verify gives one. Check the labels printed on your module, and see the notes below.

A meter has no header; see the Fluke user manual (110/113/114/115/117) for jack positions.

## Build with it
Project ideas for the Fluke 115 multimeter. Each link opens Soldr with the prompt filled in; Soldr assigns the pins, checks power and shows how to wire every part.

- [Current draw of a Pico project](https://app.soldr.ai/?prompt=I%20want%20to%20build%20a%20current%20draw%20check%20of%20a%20Raspberry%20Pi%20Pico%20with%20an%20OLED%20display%20using%20a%20Fluke%20115%20in%20series%20with%20the%205%20V%20feed%20from%20a%20buck%20converter%20and%20a%209%20V%20battery%20pack): Learning measurement task on a low-voltage circuit. The lowest current range is 6.000 A with 1 mA resolution and 1.0 % + 3 counts accuracy, so a 25 mA load reads within about +/- 3 mA; the meter suits loads of 100 mA or more better. Set the converter to 5.0 V first; place the meter in series only.
- [Check the 5 V rail of a 7805 circuit](https://app.soldr.ai/?prompt=I%20want%20to%20build%20a%205%20V%20regulator%20output%20check%20with%20a%20Fluke%20115%20measuring%20a%207805%20regulator%20fed%20from%20a%209%20V%20six-cell%20AA%20pack): DC volts at 0.5 % + 2 is plenty to see if the output is inside the regulator's 4.8 V to 5.2 V range. Keep the load small so the 7805 stays cool.
- [Measure the PWM frequency of an ESP32 pin](https://app.soldr.ai/?prompt=I%20want%20to%20build%20a%20PWM%20frequency%20check%20using%20the%20frequency%20function%20of%20a%20Fluke%20115%20on%20an%20ESP32%20output%20pin): The frequency ranges run 99.99 Hz to 50.00 kHz at 0.1 % + 2. A 3.3 V logic output is inside the meter's voltage ranges; set a PWM frequency in that span.

## Common mistakes

- Measuring current with the leads across a voltage source: the current inputs are fused (11 A, 1000 V) and must be placed in series with the load ([source](https://media.fluke.com/5e1db354-3a6e-49cf-9edd-b10800c0e608_original%20file.pdf))
- Using it above its rating: 600 V to earth ground and CAT III 600 V; mains wiring needs a qualified person ([source](https://media.fluke.com/5e1db354-3a6e-49cf-9edd-b10800c0e608_original%20file.pdf))
- Holding more than 10 A: above 10 A up to 20 A is allowed for 30 seconds on then 10 minutes off only ([source](https://media.fluke.com/5e1db354-3a6e-49cf-9edd-b10800c0e608_original%20file.pdf))

## Not covered by the official source

- Range and accuracy rows are from Table 6 of the Fluke users manual, which also gives safety, battery, display and temperature; the product page lists the same functions.

## Sources

- [link](https://www.fluke.com/en-in/product/electrical-testing/digital-multimeters/fluke-115) (Fluke 115 product page, specifications)
- [link](https://media.fluke.com/5e1db354-3a6e-49cf-9edd-b10800c0e608_original%20file.pdf) (Fluke 110/113/114/115/117 True-rms Multimeter Users Manual, March 2020)