1. Johdanto
This manual provides detailed instructions for the safe and effective use of your KAIWEETS Digital Multimeter HT118A and KAIWEETS Brake Fluid Tester KVBF01. Please read this manual thoroughly before operation and retain it for future reference.

Image 1.1: KAIWEETS Digital Multimeter HT118A and Brake Fluid Tester KVBF01. The image displays both devices: a black digital multimeter with an orange dial and a red brake fluid tester pen.
2. Turvallisuustiedot
Always observe safety precautions when using electrical testing equipment and working with automotive systems. Failure to do so may result in injury or damage to the devices or vehicle.
2.1 Yleiset turvallisuusohjeet
- Lue kaikki ohjeet ennen käyttöä.
- Do not operate the devices if they appear damaged or are not functioning correctly.
- Keep hands and clothing away from moving parts and hot surfaces.
- Use personal protective equipment (PPE) such as safety glasses.
- Älä ylitä kullekin toiminnolle määritettyjä enimmäissyöttöarvoja.
2.2 Multimeter Specific Safety
- Varmista, että oikea toiminto ja mittausalue on valittu ennen mittausten tekemistä.
- Älä koskaan mittaa voltage on a circuit with the function switch set to current, resistance, or diode mode.
- Be cautious when working with high voltages.
- Vaihda paristot, kun heikon pariston ilmaisin tulee näkyviin, jotta saat tarkat lukemat.
2.3 Brake Fluid Tester Specific Safety
- Avoid contact of the probe with skin or eyes.
- Clean the probe thoroughly after each use to prevent contamination.
- Do not use the tester on fluids other than brake fluid.
3. Tuote ohiview
3.1 KAIWEETS Digital Multimeter HT118A
The HT118A is a True RMS digital multimeter designed for accurate electrical measurements. It features a 6000-count display and various functions including AC/DC voltage, current, resistance, capacitance, frequency, temperature, diode, continuity, NCV (Non-Contact Voltage), and Live wire detection.

Kuva 3.1: ohiview of KAIWEETS HT118A Multimeter features. This image highlights various functions like AC/DC voltage, current, frequency, resistance, temperature, duty cycle, capacitance, diodes, continuity, data retention, non-contact voltage, and live wire detection. It also shows the battery compartment and probe storage.
Tärkeimmät komponentit:
- Näyttö: 2.9" HTN Backlit Screen with dual readings and bargraph.
- Toimintovalinta: Rotary switch for selecting measurement modes.
- Tuloliittimet: Terminals for test leads (VΩmA, 10A, COM).
- Painikkeet: FUNC, HOLD, MAX/MIN, Backlight/Flashlight.
- LED Lightning Jacks: Flashing jacks to guide probe placement.

Image 3.2: KAIWEETS HT118A Multimeter with LED Lightning Jacks. The image shows the multimeter's input jacks illuminating, indicating where to connect the test leads for the selected function.

Image 3.3: KAIWEETS HT118A Multimeter 2.9 inch HTN Backlit Screen. The display shows dual readings and an orange backlight, indicating auto-ranging and accurate measurement capabilities.
3.2 KAIWEETS Brake Fluid Tester KVBF01
The KVBF01 is a pen-style brake fluid tester designed to quickly and accurately measure the water content in DOT3, DOT4, and DOT5.1 brake fluids. It features a corrosion-resistant probe, data hold function, and a three-color backlight with a buzzer alarm for clear indications.

Image 3.4: KAIWEETS KVBF01 Brake Fluid Tester with Corrosion-Resistant Probe. The image highlights the durable, corrosion-resistant probe of the brake fluid tester, comparing it to a less durable alternative.
Tärkeimmät komponentit:
- Koetin: Corrosion-resistant metal probe for fluid immersion.
- Näyttö: Digital display with three-color backlight.
- Painikkeet: Power button, 'S' (Select/Hold) button.
- Summeri: Audible alarm for high water content.
4. Asennus
4.1 Battery Installation (Both Devices)
Both the Multimeter HT118A and Brake Fluid Tester KVBF01 require 2x1.5V AAA batteries.
- Paikanna laitteen takaosassa oleva paristolokeron kansi.
- Avaa kansi ruuvimeisselillä (tarvittaessa).
- Aseta 2 AAA-paristoa paikalleen ja huomioi oikea napaisuus (+/-).
- Aseta paristolokeron kansi takaisin ja kiinnitä se.
Note: Ensure batteries are installed correctly to prevent damage to the device.
5. Käyttöohjeet
5.1 KAIWEETS Digital Multimeter HT118A Operation
The HT118A features auto-ranging for most functions, simplifying operation. Connect the test leads to the appropriate input jacks (COM and VΩmA for most measurements, 10A for high current).
Mittaustoiminnot:
- AC/DC Voitage (V): Turn the dial to V~ (AC) or V- (DC). The multimeter will auto-range.
- AC/DC Current (A, mA): Turn the dial to A~ (AC) or A- (DC) for high current, or mA~ (AC) or mA- (DC) for low current. Ensure test leads are connected to the correct current input jack (10A or mA).
- Resistanssi (Ω): Turn the dial to Ω.
- Jatkuvuus (•))): Turn the dial to •))). A buzzer will sound for low resistance.
- Diode (→|): Turn the dial to →|.
- Capacitance (∔): Turn the dial to ∔.
- Taajuus (Hz): Voidaan mitata yhdessä tilavuuden kanssatage or current functions, or as a standalone function.
- Lämpötila (°C/°F): Turn the dial to °C/°F. Connect the K-type thermocouple to the VΩmA and COM jacks.
- NCV (Non-Contact Voltage): Turn the dial to NCV. Bring the top of the multimeter near an AC voltaglähde sen läsnäolon havaitsemiseksi ilman suoraa kosketusta.
- Jänniteisten johtojen tunnistus: Turn the dial to Live. Insert the red test lead into the VΩmA jack and touch the probe to the wire. The display will indicate if it's a live wire.

Image 5.1: KAIWEETS HT118A Multimeter performing temperature measurement. The image shows the multimeter connected to a K-type thermocouple, measuring the temperature of water in a glass.
Painikkeiden toiminnot:
- FUNC: Toggles between different sub-functions within a dial setting (e.g., AC/DC, Diode/Continuity).
- PITÄÄ: Jäädyttää näytön nykyisen lukeman. Paina uudelleen vapauttaaksesi.
- MAX/MIN: Displays the maximum or minimum reading recorded during a measurement session.
- Taustavalo/Taskulamppu: Activates the display backlight and/or the built-in flashlight.
5.2 KAIWEETS Brake Fluid Tester KVBF01 Operation
The KVBF01 provides quick and accurate assessment of brake fluid quality by measuring water content.

Image 5.2: KAIWEETS KVBF01 Brake Fluid Tester showing extensive testing coverage. The image illustrates the tester's compatibility with DOT3, DOT4, and DOT5.1 brake fluids, with examples of fluid containers.
- Virta päälle: Press the power button to turn on the device. The display will light up.
- Select Fluid Type: Press the 'S' button to cycle through DOT3, DOT4, and DOT5.1 fluid types until the desired type is displayed.
- Immerse Probe: Carefully dip the corrosion-resistant probe into the brake fluid reservoir. Ensure the probe tips are fully submerged.
- Lue mittaus: The device will display the water content percentage.
- Interpret Results (Three-Color Backlight):
- Green (0%-2%): Brake fluid is in good condition.
- Yellow (2%-3%): Brake fluid is acceptable, but consider changing soon.
- Red (>3%): Brake fluid needs immediate replacement. A buzzer will sound.
- Tietojen pito: Press and hold the 'S' button to activate the data hold function, freezing the current reading. Press again to release.
- Virta pois: Press and hold the power button to turn off the device. The device will also auto-power off after a period of inactivity.

Image 5.3: KAIWEETS KVBF01 Brake Fluid Tester with Data Hold function. The image shows the tester's display with a reading of 1.8% and an 'H' icon, indicating that the data hold function is active.

Image 5.4: KAIWEETS KVBF01 Brake Fluid Tester displaying 3 colors backlight. The image shows the tester's display changing color (green, yellow, red) based on the water content percentage, indicating the condition of the brake fluid.
6. Huolto
6.1 Puhdistus
- Wipe the exterior of both devices with a damp kangas. Älä käytä hankaavia puhdistusaineita tai liuottimia.
- For the brake fluid tester, thoroughly clean the probe with a dry cloth after each use to remove any brake fluid residue.
6.2 Varastointi
- Säilytä laitteita viileässä, kuivassa paikassa, poissa suorasta auringonvalosta ja äärimmäisistä lämpötiloista.
- Jos säilytät laitetta pitkään, poista paristot vuotojen estämiseksi.
7. Vianmääritys
7.1 Multimeter Troubleshooting
| Ongelma | Mahdollinen syy | Ratkaisu |
|---|---|---|
| Ei näyttöä/laite ei käynnisty | Tyhjät tai väärin asennetut paristot. | Tarkista paristojen napaisuus, vaihda paristot. |
| Epätarkkoja lukemia | Low battery, incorrect function/range, damaged test leads. | Replace batteries, verify function/range, check test leads for damage. |
| Näytössä näkyy "OL" tai "OVER" | Measurement exceeds selected range or device's maximum capacity. | Select a higher range (if not auto-ranging) or ensure measurement is within specifications. |
7.2 Brake Fluid Tester Troubleshooting
| Ongelma | Mahdollinen syy | Ratkaisu |
|---|---|---|
| Ei näyttöä/laite ei käynnisty | Tyhjät tai väärin asennetut paristot. | Tarkista paristojen napaisuus, vaihda paristot. |
| Epäjohdonmukaiset lukemat | Probe not fully submerged, probe dirty, incorrect fluid type selected. | Ensure probe is fully submerged, clean probe thoroughly, verify selected fluid type. |
| Buzzer sounds immediately | High water content in brake fluid. | Brake fluid requires immediate replacement. |
8. Tekniset tiedot
8.1 KAIWEETS Digital Multimeter HT118A
- Näyttö: 6000 Counts, 2.9" HTN Backlit Screen
- Todellinen RMS: Kyllä
- Automaattinen etäisyys: Kyllä
- Toiminnot: AC/DC Voitage, AC/DC Current, Resistance, Capacitance, Frequency, Temperature, Diode, Continuity, NCV, Live
- Turvallisuusluokitus: 1000 V luokka III, 600 V luokka IV
- Teho: 2x1.5V AAA Batteries
- Käyttölämpötila: 0-40°C (32-104°F)
8.2 KAIWEETS Brake Fluid Tester KVBF01
- Mittausalue: 0% - 4% water content
- Tarkkuus: ± 0.3 %
- Fluid Types: DOT3, DOT4, DOT5.1
- Koetin: Korroosionkestävä
- Ominaisuudet: Data Hold, Three-color Backlight, Buzzer Alarm
- Teho: 2x1.5V AAA Batteries
- Käyttölämpötila: 0-40°C (32-104°F)
9. Takuu ja tuki
KAIWEETS provides a 30-day free return policy and a 3-year warranty for this product. Lifetime technical support is also available. For any questions or assistance, please contact KAIWEETS customer service.
For more information or to contact support, please visit the official KAIWEETS store: KAIWEETS Store