The TSM-599 Smart Digital Multi-meter, a versatile and reliable tool designed to meet all your measurement needs with ease and safety.
It features both auto and manual measurement modes, allowing you to test DC/AC voltage, resistance, and continuity effortlessly in Auto mode, while Manual mode lets you detect DC/AC current, diode, capacitance, frequency/duty cycle, temperature, NCV, and live wire.
Equipped with a 10A/250V fuse, this voltage meter effectively prevents current measurement overload and protects both the device and the user, while its insulated silicone casing enhances safety.
The user-friendly design includes an auto-off function that conserves energy by turning off after 15 minutes of inactivity, a low battery indicator, data hold, a built-in flashlight, and a stand for convenient use in various environments. The large-sized color LCD screen ensures clear and easy data viewing in any situation, featuring an analog bar and real-time temperature display for comprehensive monitoring.
The package includes the TSM-599 multimeter, 2 test leads, a thermocouple, a storage bag, 4 AAA batteries, and a user manual. We provide a 3-year maintenance service and lifetime technical support, ensuring a worry-free after-sales experience. Choose the TSM-599 Smart Digital Multimeter for a reliable, safe, and user-friendly measurement experience.

Q: Why can't I switch functions after inserting the red probe into the A port?
A: The A port is specifically designed for current measurement. At this point, you can only select DC current or AC current measurement; other functions are not available.
Q: How do I enter manual mode?
A: You can enter manual mode by pressing either of the two rightmost function buttons. To return to smart mode, long press any of these two buttons.
Q: Why does the instrument beep when measuring resistance?
A: When measuring resistance below 50 ohms, the TSM-599 smart multimeter also detects circuit continuity and emits a beep to alert you. Meanwhile, the screen will display the resistance value.
Q: What do the indications on the screen mean when using the NCV function?
A: When using the NCV function, do not connect any probes. Bring the NCV sensing area close to the location you want to test. If the voltage meter detects a low AC voltage, the screen will display “-----L”, the indicator will turn green, and the instrument will emit a low-frequency beep. If the multi-meter detects a high AC voltage, the screen will display “-----H”, the indicator will turn red, and the instrument will emit a high-frequency beep.