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Red handheld temperature humidity meter TM-182 with dual LCD display

TENMARS ELECTRONICS

TENMARS ELECTRONICS TM-182 Temperature Humidity Meter Datalogging

SKU CH-5CP0-5Z295 MPN TM-182

Measures temperature from -20 °C to 60 °C and humidity 1 % to 99 % RH with 30 000-record datalogging and USB output

  • Labor warranty1 Year
  • Product typeTest Equipment
  • Color and finishRed
  • Number of items1 pack
  • Sold asBox
  • Parts warranty3 Years
  • Measures humidity from 1% to 99% RH
  • Captures temperature from -20.0°C to 60.0°C with 0.8°C accuracy
  • Logs up to 30000 data sets via USB PC interface
  • Dual LCD shows dew-point and wet-bulb readings with backlight
  • Auto power-off and low-battery alert extend 9V battery life

Professional HVAC monitoring

The TM-182 is a handheld temperature and humidity meter built for HVAC inspection. It displays both values simultaneously on a dual LCD with real-time data, dew-point and wet-bulb calculations, and an audible alarm function. Electricians and facility technicians use it to verify environmental conditions on site.

Simple setup with USB logging

Power the meter with a 9 V battery or a 9 V/300 mA AC adapter, then connect the USB PC interface to transfer up to 30000 data sets. A low-battery indicator and overload display warn of power issues before readings drift. The only common snag is forgetting that the battery is not included in the box.

Steady readings over long sessions

Sampling once per second, the unit maintains 0.8 °C accuracy from 0 °C to 40 °C and 3.0 %RH accuracy between 20 %RH and 80 %RH. Auto power-off preserves the supply during idle periods, while the back light keeps the display legible in dim plant rooms. Accuracy widens to 2.0 °C outside the core temperature band.

How it compares

Measured against everything we stock in Electrical Trade Tools & Kits, at today’s prices. Recalculated every night.

Price $147.99
Pricier than about 68% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameTENMARS
Model nameTM-182
Product typeTest Equipment
Color and finishRed
In the box
Number of items1 pack

Questions about this item

How can I confirm the TM-182 is logging correctly after I power it on?

The dual LCD will show real-time readings updating once per second, the data-hold icon appears when you press HOLD, and stored records accumulate up to 30000 data sets in memory.

What ships in the box and what must I supply myself?

The meter itself is included; you must provide a 9 V battery (NEDA 1604, IEC 6F22 or JIS 006P) or a 9 V/300 mA AC-to-DC adapter for power.

Which measurement range should I rely on for typical HVAC work?

For HVAC inspection use the humidity range 1 %–99 % RH and the temperature range -20.0 °C–60.0 °C (-4.0 °F–140.0 °F) with 0.1 % RH, 0.1 °C and 0.1 °F resolution.

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