UNI-T UT181A True RMS Datalogging Multimeter

Industrial 60,000-Count High-Precision Display: Features a 3.5-inch 64K full-color TFT LCD screen with 60,000-count resolution and graphical trend capture for real-time visual signal analysis.

20,000 Data Point On-Board Datalogging: Stores up to 20,000 measurement datasets internally with real-time timestamps for long-term power monitoring and drift analysis.

True RMS & Low-Pass Filter (LPF): Delivers precise True RMS measurements on complex non-sinusoidal AC waveforms and variable frequency drive (VFD) motor outputs up to 1000V AC/DC.

Simultaneous Dual Temperature Inputs: Supports dual K-type thermocouple temperature probing (T1, T2, T1-T2, T2-T1) ranging from -40°C to 1000°C (-40°F to 1832°F).

Rechargeable Li-ion Power Supply: Powered by a high-capacity 7.4V 2000mAh rechargeable Li-ion battery pack with included AC power charger adapter.

IP65 Waterproof & Dustproof Protection: Engineered with a rugged, IP65-rated double-injection molded housing to withstand harsh industrial job sites and accidental drops.

Housing & Construction: Industrial-grade double-molded ABS housing certified to IP65 water/dust resistance with integrated heavy-duty rubber holster and rear tilt stand.

Electrical Safety Ratings:

Safety Standards: Certified to IEC 61010 CAT III 1000V / CAT IV 600V.

Battery & Power: Internal $7.4\text{V}$ $2000\text{mAh}$ Li-ion rechargeable battery.

Interface & Connectivity: USB communication interface cable with PC software and optional Bluetooth app connectivity.

Maintenance Advice: Recharge the internal Li-ion battery before long-term storage. Wipe external housing and screen with an anti-static electronic wipe.

Flagship Datalogging Bench Workhorse: Position as a premium alternative to high-end industrial dataloggers, perfect for plant maintenance engineers, HVAC technicians, and electrical auditors.

Key Graphical & LPF Advantage: Highlight its full-color TFT screen trend plotting and 20,000-point datalogging capabilities as critical features missing from standard digital multimeters.

Recommended Cross-Sell Add-ons: Pair with Uni-T Test Lead CAT III 1000V/CAT IV 600V 20A, UNI-T UT195E Professional Multimeter AC/DC 1000V 20A, UNI-T UT61D+ 1000V True RMS Digital Multimeters, and 1 Pair Small Test Hook Clip to Banana Plug.

Top-Tier Professional Product: Feature as the flagship premium datalogger on your Digital Multimeters collection page to reinforce catalog authority for high-precision diagnostic tools.