1. Introduzione
The PeakMeter PM8908B is a professional, pen-style non-contact AC voltage detector designed for safe and easy voltage testing. This device can detect AC voltage ranging from 12V to 1000V, offering adjustable sensitivity for various applications. It features sound and light alarms, automatic power-off, and a built-in flashlight for convenience in dimly lit environments. Its compact design ensures portability and ease of use.
This manual provides essential information for the safe and effective operation, maintenance, and troubleshooting of your PM8908B voltage detector. Please read it thoroughly before using the device.
2. Informazioni sulla sicurezza
Always adhere to safety precautions when working with electrical systems. This device is designed to enhance safety, but it does not replace proper electrical safety practices.
- This device is designed according to safety requirements EN61010-1-2-030, EN61010-2-033, and CAT.III1000V.
- Non utilizzare il dispositivo se appare danneggiato o non funziona correttamente.
- Always test the detector on a known live circuit before and after use to confirm proper operation.
- Non tentare di misurare il voltagsupera l'intervallo specificato (1000 V CA).
- Keep hands and fingers away from the tip of the detector during operation.
- Per garantire letture accurate, sostituire tempestivamente le batterie quando compare l'indicatore di batteria scarica.
3. Prodotto finitoview
The PeakMeter PM8908B is a compact, pen-style device with intuitive controls and indicators.


Componenti chiave:
- Suggerimento per il rilevamento: Non-contact probe for sensing AC voltage.
- Torcia elettrica: White LED light for illuminating dark areas.
- Pulsante di accensione: Accende/spegne il dispositivo.
- Alarm/Sensitivity Button: Adjusts sensitivity and controls the alarm.
- Indicatori LED: Red LED for live wire detection, green LED for power/flashlight.
- Rotatable Battery Cover: Per una facile sostituzione della batteria.
4. Impostazione
4.1 Installazione della batteria
The PM8908B requires two (2) 1.5V AAA batteries for operation.
- Locate the rotatable battery cover at the top end of the detector.
- Ruotare il coperchio in senso antiorario per aprirlo.
- Inserire due batterie AAA da 1.5 V, assicurandosi che la polarità (+/-) sia corretta, come indicato all'interno del vano.
- Replace the battery cover by rotating it clockwise until it is securely closed.
The device will automatically power on after battery installation or when the power button is pressed.
5. Istruzioni per l'uso
5.1 Accensione/spegnimento
- Press the power button (usually marked with “⑉”) to turn the detector on. The green LED will illuminate.
- To turn off, press and hold the power button for approximately 2 seconds. The device also features an auto power-off function to conserve battery life after a period of inactivity.
5.2 Vol. AC senza contattotage rilevamento
The PM8908B detects AC voltage senza contatto diretto con il conduttore.
- Accendi il rivelatore.
- Bring the detection tip close to the wire, outlet, or electrical component you wish to test.
- Se AC voltage is detected, the red LED indicator will flash, and an audible alarm will sound. The frequency of the flashing and beeping increases with higher voltage or closer proximity to the source.

5.3 Regolazione della sensibilità
The detector offers three levels of sensitivity (High, Medium, Low) for different detection scenarios.
- Press the alarm/sensitivity button (usually marked with a bell icon) to cycle through the sensitivity modes.
- The device will indicate the current sensitivity level through a combination of beeps or LED flashes.
- Use high sensitivity for detecting voltage from a greater distance or through insulation. Use low sensitivity for more precise localization of voltage fonti.
5.4 Zero Line and Fire Line Distinction
The PM8908B can automatically distinguish between the Zero (Neutral) Line and the Fire (Live) Line.
- When testing an AC outlet or cable, the detector will provide a stronger and more consistent alarm (faster flashing red LED and quicker beeps) when near the live wire.
- The neutral wire will typically result in no alarm or a significantly weaker/intermittent alarm, depending on the sensitivity setting and environmental factors.
5.5 Funzione torcia
The built-in white LED flashlight assists in working in dark areas.
- Press the flashlight button (often integrated with the power button or a separate button) to turn the flashlight on or off.

6. Manutenzione
6.1 Sostituzione della batteria
When the low battery indicator appears, replace the batteries as soon as possible to ensure accurate operation. Refer to Section 4.1 for battery installation instructions.
6.2 Pulizia
Wipe the device with a dry, clean cloth. Do not use abrasive cleaners or solvents. Ensure the device is powered off before cleaning.
6.3 Conservazione
Store the detector in a cool, dry place, away from direct sunlight and extreme temperatures. If storing for an extended period, remove the batteries to prevent leakage.
7. Risoluzione Dei Problemi
| Problema | Possibile causa | Soluzione |
|---|---|---|
| Il dispositivo non si accende. | Batterie scariche o installate in modo errato. | Controllare la polarità delle batterie o sostituirle con nuove batterie AAA da 1.5 V. |
| Nessun rilevamento o segnale debole. | Low battery, incorrect sensitivity setting, or no AC voltage presente. | Replace batteries. Adjust sensitivity to 'High'. Test on a known live circuit. |
| Falsi positivi (rileva voltage where none is expected). | High sensitivity setting, static electricity, or induced voltage. | Reduce sensitivity. Ensure proper grounding of the circuit being tested. |
| La torcia non funziona. | Low battery or flashlight function not activated. | Replace batteries. Press the flashlight button to activate. |
8. Specifiche
The following table outlines the technical specifications for the PeakMeter PM8908B Non-Contact AC Voltage Rivelatore.

| Parametro | Specificazione |
|---|---|
| Modello | PM8908B |
| Voltage Sensibilità | da 12 V a 1000 V CA |
| Frequenza | Frequenza |
| Modalità allarme | Suono e Luce |
| Torcia elettrica | LED bianco |
| Spegnimento automatico | SÌ |
| Temperatura di esercizio | Da 32 a 122 ℉ (da 0 a 50 ℃) |
| Temperatura di conservazione | Da -4 a 140 ℉ (da -20 a 60 ℃) |
| Umidità | Meno dell'85% di umidità relativa |
| Batteria | 2 batterie AAA da 1.5 V |
| Dimensioni dell'articolo | Dimensioni: 16 x 2 x 2 cm |
| Peso dell'articolo | 50g |
| Valutazione di sicurezza | EN61010-1-2-030, EN61010-2-033, CAT.III1000V |
9. Garanzia e supporto
Specific warranty information for the PeakMeter PM8908B is not provided in the product details. For warranty claims or technical support, please refer to the retailer or manufacturer's official websito in cui è stato acquistato il prodotto.