# Body-voltage measurement kit

> A high-impedance millivoltmeter, a wrist or hand electrode and a ground reference: the standard building-biology method for grading bedroom electric fields.

- Canonical URL: https://emfbase.com/meters/body-voltage-kit
- Collection: Instruments
- Record id: `meters:body-voltage-kit`
- Status: verified
- Last verified: 2026-08-12
- JSON: https://emfbase.com/api/meters/body-voltage-kit
- Also known as: body voltage meter

## Key values

- **Band covered:** power frequency plus harmonics
- **Quantities measured:** body voltage
- **Typical price:** $80–$300

## Detects

- Capacitive coupling from nearby energised wiring to the body
- The effect of unplugging individual devices, one at a time
- Whether a demand switch or shielded cable actually worked

## Cannot detect

- Magnetic fields
- Radiofrequency fields
- Anything comparable between homes unless the same grounding reference and protocol are used

## What to insist on

- Input impedance high enough not to load the measurement, typically ≥10 MΩ
- A defined ground reference: protective earth or a dedicated ground rod, documented in the report
- AC millivolt range with 1 mV resolution

## Related records

- [Body voltage](https://emfbase.com/quantities/body-voltage): Millivolts induced on a person by nearby power-frequency electric fields, measured against a ground reference; the metric building biologists use to judge bedroom wiring.
- [Body-voltage measurement](https://emfbase.com/protocols/body-voltage-survey): The building-biology method for grading a sleeping area's AC electric field: a high-impedance millivoltmeter, a hand electrode, and a documented ground reference.

## Sources

- `sbm-2024` Institut für Baubiologie + Nachhaltigkeit (IBN) (2024). *Building Biology Evaluation Guidelines for Sleeping Areas (SBM-2024)*. https://buildingbiology.com/site/downloads/SBM-2024_EVALUATION_GUIDELINES_EN.pdf — ngo, link checked 2026-08-12

Data licence: CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Dataset version 2026.08.1. Retrieved from EMFBase, https://emfbase.com.

This record is reference data, not medical or legal advice. Regulatory limits, scientific guidelines and precautionary values are labelled separately and answer different questions.