TENMARS ELECTRONICS
TENMARS ELECTRONICS TM-747D 4-Channel Thermometer electrician tool
Measures four thermocouple channels simultaneously with seven type selections, 16,800-record datalogging, dual LCD, RS-232 and USB interfaces, and selectable °C/°F/°K units
- TypeTest Equipment
- Color/FinishRed
- Item Count1 pack
- Selling UnitBox
- Parts3 Years
- Labor1 Year
- Measures seven thermocouple types for versatile applications
- Stores 16,800 records for extended data logging
- Dual LCD shows T1-T2 and T3-T4 simultaneously
- USB interface connects to Windows XP through 10
- Hi/Lo audible alarms alert to temperature thresholds
Four-Channel Thermometer
The TENMARS TM-747D is a digital thermometer designed for electricians and technicians who need to monitor up to four temperature points simultaneously. It accepts seven thermocouple types including K, J, T, E, R, S and N for diverse measurement tasks. The dual LCD shows T1-T2 and T3-T4 differentials directly on the 4-digit display. Selectable °C, °F and °K units suit various reporting standards.
Build Integration
The unit measures 168x73x35mm and weighs approximately 330g, fitting into a tool bag or mounting on a panel. Power comes from a user-supplied battery, so no external supply is required. Data transfers through a USB PC serial interface compatible with Windows XP through 10. RS-232 connectivity offers an alternative for legacy logging systems. The 16,800-record datalogging capacity frees the operator from manual note-taking during long sessions.
Sustained Operation
Accuracy holds at ±(0.05% rdg + 0.7°C) for K, J, E, T and N types, with specific derating below -100°C. R and S types maintain ±(0.05% rdg + 3°C). Temperature coefficient is 0.05%±0.07°C per °C outside the 18°C to 28°C reference range. Hi/Lo audible alarms alert the user to drift during extended runs. Max, Min, AVG and time-stamped data hold functions preserve critical readings without constant attention.
Highlights
- Measures seven thermocouple types for versatile applications
- Stores 16,800 records for extended data logging
- Dual LCD shows T1-T2 and T3-T4 simultaneously
- USB interface connects to Windows XP through 10
- Hi/Lo audible alarms alert to temperature thresholds
Specifications
| Brand | TENMARS |
|---|---|
| Model | TM-747D |
| Type | Test Equipment |
| Color/Finish | Red |
| Item Count | 1 pack |
| Selling Unit | Box |
| Parts | 3 Years |
| Labor | 1 Year |
Questions about this item
How many temperature readings can the TM-747D store in its datalogging memory before it fills up?
The meter can log up to 16,800 records, which is the maximum capacity of its internal memory.
Does the TM-747D produce any audible noise or heat during continuous all-day operation?
The only audible output is the Hi/Lo alarm buzzer; the unit itself runs silently and generates no noticeable heat.
Which thermocouple probes must I already own to use the four channels on this thermometer?
You need up to four K, J, T, E, R, S or N type thermocouples, as the meter accepts any of those seven types on its four input channels.
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