1. Introduzione
This manual provides detailed instructions for the operation and maintenance of your KAIWEETS Smart Multimeter KM602 and KAIWEETS Non-Contact RPM Tachometer KTA01. Please read this manual thoroughly before using the devices to ensure safe and correct operation. Keep this manual for future reference.

Immagine 1.1: The KAIWEETS Smart Multimeter KM602 and Non-Contact RPM Tachometer KTA01, along with their respective accessories including test leads, charging cable, carrying case, and batteries.
2. Informazioni sulla sicurezza
Always adhere to the following safety precautions to prevent personal injury or damage to the devices.
- Sicurezza generale: Do not operate the devices if they appear damaged or if the casing is open. Ensure your hands are dry before handling electrical components.
- Multimeter Safety:
- Non applicare voltage or current that exceeds the maximum rated values specified in the specifications section.
- Prima di modificare le funzioni, scollegare sempre i puntali di prova dal circuito.
- Prestare attenzione quando si lavora con voltagsuperiori a 30 V CA RMS, 42 V di picco o 60 V CC. Questi voltagrappresentano un rischio di scossa elettrica.
- Prima di effettuare le misurazioni, assicurarsi di aver selezionato la funzione e l'intervallo corretti.
- Tachometer Safety:
- Do not stare directly into the laser beam. Avoid directing the laser at people or animals.
- Use the device only as intended for RPM measurement.
- Ensure the measurement area is clear of obstructions and moving parts are safely guarded.
3. Prodotto finitoview
3.1 KAIWEETS Smart Multimeter KM602
The KM602 is a smart digital multimeter designed for various electrical measurements. It features an automatic identification mode for common measurements and a manual mode for professional use.

Immagine 3.1: The KAIWEETS Smart Multimeter KM602 displaying its 'Auto Smart Mode' feature, which automatically recognizes and tests DC voltage, AC voltage, resistenza e continuità.
Caratteristiche principali:
- Modalità Smart: Automatically recognizes and tests DC/AC voltage, resistenza e continuità.
- Modalità manuale: Consente la selezione di funzioni di misurazione specifiche.
- Batteria ricaricabile: Batteria al litio integrata da 1200 mAh.
- Color Full-Screen Display: Large, clear display for easy readings.

Immagine 3.2: The KAIWEETS Smart Multimeter KM602 connected via USB-C for charging its internal 1200mAh rechargeable lithium battery, indicating its charging status on the display.

Immagine 3.3: Un primo piano view of the KAIWEETS Smart Multimeter KM602's color full-screen display, showing clear and vibrant readings for various electrical parameters, highlighting its enhanced readability.
3.2 KAIWEETS Non-Contact RPM Tachometer KTA01
The KTA01 is a digital tachometer designed for non-contact measurement of rotational speed (RPM) and counting. It uses a laser to detect rotation from a reflective strip.

Immagine 3.4: The KAIWEETS Non-Contact RPM Tachometer KTA01 in use, demonstrating its capability to measure RPM on a rotating machine part and perform counting functions, indicated by the laser beam.
Caratteristiche principali:
- Misura senza contatto: Safely measures RPM without physical contact.
- Data Hold: Blocca la lettura corrente sul display.
- Retroilluminazione: Migliora la visibilità in condizioni di scarsa illuminazione.
- Massimo/Minimo/Media: Registra le letture massime, minime e medie.
- Spegnimento automatico: Conserva la durata della batteria.

Immagine 3.5: An illustration highlighting the key features of the KAIWEETS Non-Contact RPM Tachometer KTA01, including Data Hold, Backlight, Max/Min/Avg functions, Battery indicator, Auto off, and Sound on/off.
4. Impostazione
4.1 KAIWEETS Smart Multimeter KM602
- Ricarica: Connect the provided USB-C cable to the multimeter and a standard USB power adapter (not included) to charge the internal battery. The display will indicate charging status.
- Collegamento del puntale di prova: Insert the red test lead into the 'INPUT' jack and the black test lead into the 'COM' jack for most measurements. For current measurements, refer to the specific instructions in the operating section.
4.2 KAIWEETS Non-Contact RPM Tachometer KTA01
- Installazione della batteria: Open the battery compartment on the back of the device and insert the required batteries (typically AAA, refer to specifications) ensuring correct polarity.
- Reflective Strip Application: For accurate RPM measurements, attach a small piece of the provided reflective strip to the rotating object. Ensure the strip is clean and securely adhered.
5. Istruzioni per l'uso
5.1 KAIWEETS Smart Multimeter KM602
Premere il pulsante di accensione per accendere il multimetro.
5.1.1 Modalità intelligente (Auto)
Upon power-on, the multimeter typically defaults to Smart Mode. In this mode, it automatically detects and measures:
- Volume DCtage
- Volume ACtage
- Resistenza
- Continuità
Simply connect the test leads to the circuit or component, and the multimeter will display the appropriate measurement.
5.1.2 Modalità manuale
Press the 'FUNC' button to cycle through different measurement functions if you need to select a specific mode not automatically detected by Smart Mode, or for specialized measurements.
5.1.3 Misure specifiche

Immagine 5.1: The KAIWEETS Smart Multimeter KM602 demonstrating its versatility by performing four different measurements: AC/DC Voltage, AC/DC Current, Continuity, and Temperature (using a thermocouple).
- Voltage (CA/CC): Connect test leads in parallel with the circuit.
- Corrente (CA/CC): Connect test leads in series with the circuit. Ensure the correct input jack is used for current measurement (e.g., 10A or mA).
- Resistenza: Connect test leads across the component when power is off.
- Continuità: Connect test leads across the circuit or component. An audible beep indicates continuity.
- Temperatura: Use the provided thermocouple and select the temperature function.
5.2 KAIWEETS Non-Contact RPM Tachometer KTA01
Press the power button to turn on the tachometer.
5.2.1 RPM Measurement Procedure
- Apply Reflective Strip: Tear off a small piece of reflective strip and stick it onto the object to be measured.
- Puntamento laser: Turn on the tester, select the mode (if applicable), and aim the laser at the reflective strip area from an appropriate distance.
- Inizia la misurazione: Press the 'TEST' button to initiate the measurement. The RPM reading will be displayed.

Immagine 5.2: A step-by-step guide illustrating the use of the KAIWEETS Non-Contact RPM Tachometer KTA01: 1) applying a reflective strip, 2) aiming the laser at the strip, and 3) pressing the test button to measure RPM.
5.2.2 Funzioni
- TENERE: Press to freeze the current reading. Press again to release.
- MAX/MIN/MEDIA: Press the 'MAX MIN AVG' button to cycle through maximum, minimum, and average recorded values during a measurement session.
- Retroilluminazione: Use the backlight button to illuminate the display in dark environments.
- Attivazione/disattivazione audio: Attiva/disattiva gli avvisi acustici.
5.2.3 Applicazioni
The KTA01 tachometer is suitable for a wide range of applications:
- Manufacturing processes
- Chemical industry equipment
- Electric motor diagnostics
- Engine testing and maintenance

Immagine 5.3: The KAIWEETS Non-Contact RPM Tachometer KTA01 shown in various industrial and automotive settings, illustrating its wide application in manufacturing, chemical industry, electric motor maintenance, and engine diagnostics.
6. Manutenzione
- Pulizia: Pulisci il dispositivo casing con annuncioamp panno. Non usare detergenti abrasivi o solventi.
- Magazzinaggio: Store the devices in a cool, dry place away from direct sunlight and extreme temperatures. If storing for extended periods, remove batteries from the tachometer.
- Battery Care (KM602): Recharge the multimeter regularly to maintain battery health. Avoid fully discharging the battery frequently.
- Calibrazione: Per applicazioni professionali che richiedono elevata precisione, si consiglia la calibrazione periodica da parte di un centro di assistenza qualificato.
7. Risoluzione Dei Problemi
| Problema | Possibile causa | Soluzione |
|---|---|---|
| Il multimetro non si accende. | Low battery (KM602). | Charge the multimeter battery. |
| Tachometer does not power on. | Batterie scariche o installate in modo errato. | Sostituire le batterie o controllare la polarità. |
| Multimeter shows 'OL' (Overload). | La misurazione supera l'intervallo selezionato o la capacità del dispositivo. | Switch to a higher range (if in manual mode) or ensure measurement is within specifications. |
| Inaccurate Tachometer readings. | Reflective strip not properly applied or dirty. Laser not aimed correctly. | Ensure reflective strip is clean and securely attached. Re-aim the laser directly at the strip. |
| No continuity beep on multimeter. | Open circuit. Leads not making good contact. | Check the circuit for breaks. Ensure leads are firmly connected. |
8. Specifiche
8.1 KAIWEETS Smart Multimeter KM602
| Parametro | Valore |
|---|---|
| Volume DCtage Gamma | Fino a 600V |
| Volume ACtage Gamma | Fino a 600V |
| Intervallo di corrente CC | Fino a 10A |
| Gamma di corrente CA | Fino a 10A |
| Intervallo di resistenza | Fino a 60 MΩ |
| Intervallo di capacità | Fino a 100 mF |
| Gamma di frequenza | Fino a 10 MHz |
| Intervallo di temperatura | -20°C a 1000°C (-4°F a 1832°F) |
| Display | LCD a colori |
| Batteria | Litio ricaricabile da 1200 mAh |
| Valutazione di sicurezza | CATIII 600V |
8.2 KAIWEETS Non-Contact RPM Tachometer KTA01
| Parametro | Valore |
|---|---|
| Intervallo di misurazione dei giri al minuto | Da 2.5 a 99,999 giri/min |
| Gamma di conteggio | Da 0 a 99,999 |
| Distanza di misurazione | 50mm to 500mm (2in to 20in) |
| Display | LCD con retroilluminazione |
| Classe laser | Classe 2 |
| Alimentazione elettrica | Batterie AAA (non incluse) |
9. Garanzia e supporto
KAIWEETS products are designed for reliability and performance. For warranty information and technical support, please refer to the warranty card included with your product or visit the official KAIWEETS website. Do not attempt to repair the devices yourself, as this may void the warranty and pose safety risks.





