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Asphalt Paving – Temperature and Monitoring
Temperature and compaction are two of the most important words in the world of paving. Tel-Tru is your reliable partner for measuring the right temperature for optimum compaction. From laying down a new pad to making repairs due to winter’s harsh conditions, our thermometers are accurate and reliable instruments, ideal for every step of the temperature monitoring process.
Click on the links below for an overview of products recommended for your application.
Please refer to your local and state guidelines to ensure all quality and safety regulations are met.
| Asphalt Plant | Quality Check |
| Transportation | Replacement Thermometers |
| Paving, Sealing, and Repairs | OEM Equipment |
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Asphalt PlantAsphalt mixing plants heat aggregates and mix them with bitumen and other adhesive substances to generate hot mix asphalt (HMA). The quantity and nature of the aggregate depends on specific requirements of the mix which are defined by the contractor for the application. Requirements can range from single-sized material to various sizes of fine and coarse particles. |
| Thermometers for Laboratory and Production Plant | View specs and purchase | ||
|---|---|---|---|
| Laboratory Testing and General Purpose Bimetal Thermometers | |||
 -50/500°F |
GT100 8" stem, 50/500°F with sheath | 15100864AAEAFAA | $42.49 |
| GT100R 8" stem, 50/500°F with sheath and calibration feature | 16100864AFEAFAA | $42.49 | |
| If you don't see what you're looking for, click here to configure other options. | |||
Digi-Tel Direct Mount Thermometers |
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 -75/750°F |
ND5 Back Connect, 4" Probe, -75/750°F | ND5BB09211P22046 | $529.01 |
| ND5 Bottom Connect, 4" Probe, -75/750°F | ND5CB09211P22046 | $529.01 | |
| ND5 Adjustable Angle, 4" Probe, -75/750°F | ND5AB09211P22046 | $529.01 | |
| If you don't see what you're looking for, click here to configure other options. | |||
Digi-Tel Remote Mount Thermometer |
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 -75/750°F |
ND4 Remote Mount 4" Probe, 5' cable -70/750°F |
ND4RB09215P22042-C1005 | $529.01 |
| If you don't see what you're looking for, click here to configure other options. | |||
RTD Assemblies |
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 -60/500°F or 0/500°F |
NPAA3 .250" probe 2-1/2" probe length 1/2" NPT Connection with 6" leads, -60/500°F, no transmitter included | NPAA3202A101-C0600 | $108.52 |
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NPAA3 .250" probe 2-1/2" probe length, ½" NPT connection with cast aluminum connection head, 0/500°F, 3-wire Temperature Transmitter, PC-programmable for PT100 Input |
NPAA3202A158-D03C1 |
$205.48 |
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| If you don't see what you're looking for, click here to configure other options. | |||
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TransportationTransporting material from the plant to point of application is a critical time for temperature loss. Factors such as air temperature, rain, wind and length of haul can affect the characteristics and temperature of the load. Specific measures can be taken to minimize HMA cooling during transport, including minimizing the haul distance, insulating truck beds, and tarping the bed. |
| Thermometers for HMA Temperature Check in Transport | View specs and purchase | ||
|---|---|---|---|
| General Testing Thermometers | |||
 50/500°F |
GT100R 1-3/4" dial, 12" stem, .150" diameter pointed, 50/500°F | 16101264AFEADAA | $48.67 |
| GT100R 1-3/4" dial, 18" stem, .150" diameter pointed, 50/500°F | 16101864AFEADAA | $66.22 | |
 50/500°F |
LT225R 2" dial, 12" stem, .150" diameter pointed, 50/500°F | 23101264AFEADAA | $53.31 |
| LT225R 2" dial, 18" stem, .150" diameter pointed, 50/500°F | 23101864AFEADAA | $70.86 | |
| If you don't see what you're looking for, click here to configure other options. | |||
| Thermometers for Hot Tank Trucks | |||
 50/500°F |
LN250 2" dial, 12" stem, .25" diameter blunt, 50/500°F, ½" NPT connection | 31101264AKLAAAA | $60.75 |
 50/500°F |
GT300 3" dial, 12" stem, .25" diameter blunt, 50/500°F, ½" NPT connection | 33101264AKLAAAA | $75.92 |
 50/500°F |
AA575R 5" dial, 12" stem, .25" diameter blunt, 50/500°F, ½" NPT connection | 42101264AKLAAAA | $187.37 |
| If you don't see what you're looking for, click here to configure other options. | |||
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Paving, Sealing, and RepairsScreed temperature and ground temperature are two critical factors that should be considered before laying down HMA onto the pad. If they are out of acceptable zones, quality paving will be compromised. IR thermometers are ideal tools for performing this task. For sealing and repairs, maintaining the optimum temperature of the hot tar in the tank is critical to proper flow, adhesion, and safety. |
| Thermometer for Ground and Paver Screed Temperature Check | View specs and purchase | ||
|---|---|---|---|
| Hand-Held Non-Contact Thermometer | |||
 -76°/1832°F |
Tel-Fast Heavy Duty IR thermometer, Dual laser, 50:1 distance to spot ratio, IR range -76/1832°F, Thermocouple range -83/2552°F | QT425LCE | $306.38 |
| If you don't see what you're looking for, click here to configure other options. | |||
| Instruments for Hot Tar / Crack Sealer Trailer | View specs and purchase | ||
| Dial Thermometers | |||
50/500°F |
GT300 Back Connect 3" dial, 4" stem, .250" diameter blunt, 50/500°F, ½" NPT connection | 33100464AKLAAAA | $64.69 |
| GT300 Back Connect 3" dial, 6" stem, .250" diameter blunt, 50/500°F, ½" NPT connection | 33100664AKLAAAA | $64.69 | |
| GT300 Back Connect 3" dial, 9" stem, .250" diameter blunt, 50/500°F, ½" NPT connection | 33100964AKLAAAA | $64.69 | |
| GT300 Back Connect 3" dial, 12" stem, .250" diameter blunt, 50/500°F, ½" NPT connection | 33101264AKLAAAA | $75.92 | |
| GT300 Back Connect 3" dial, 15" stem, .250" diameter blunt, 50/500°F, ½" NPT connection | 33101564AKLAAAA | $86.50 | |
| GT300 Back Connect 3" dial, 18" stem, .250" diameter blunt, 50/500°F, ½" NPT connection | 33101864AKLAAAA | $96.34 | |
| GT300 Back Connect 3" dial, 24" stem, .250" diameter blunt, 50/500°F, ½" NPT connection | 33102464AKLAAAA | $115.18 | |
| GT300 Back Connect 3" dial, 36" stem, .250" diameter blunt, 50/500°F, ½" NPT connection | 33103664AKLAAAA | $154.29 | |
 50/500°F |
BC350R Bottom Connect 3" dial, 4" stem, .250" diameter blunt, 50/500°F, ½" NPT connection | 39100464AKLAAAA | $128.79 |
| BC350R Bottom Connect 3" dial, 6" stem, .250" diameter blunt, 50/500°F, ½" NPT connection | 39100664AKLAAAA | $128.79 | |
| BC350R Bottom Connect 3" dial, 9" stem, .250" diameter blunt, 50/500°F, ½" NPT connection | 39100964AKLAAAA | $128.79 | |
| BC350R Bottom Connect 3" dial, 12" stem, .250" diameter blunt, 50/500°F, ½" NPT connection | 39101264AKLAAAA | $140.02 | |
| BC350R Bottom Connect 3" dial, 15" stem, .250" diameter blunt, 50/500°F, ½" NPT connection | 39101564AKLAAAA | $150.60 | |
| BC350R Bottom Connect 3" dial, 18" stem, .250" diameter blunt, 50/500°F, ½" NPT connection | 39101864AKLAAAA | $160.44 | |
| BC350R Bottom Connect 3" dial, 24" stem, .250" diameter blunt, 50/500°F, ½" NPT connection | 39102464AKLAAAA | $179.28 | |
| BC350R Bottom Connect 3" dial, 36" stem, .250" diameter blunt, 50/500°F, ½" NPT connection | 39103664AKLAAAA | $218.39 | |
| If you don't see what you're looking for, click here to configure other options. | |||
| Industrial/Hydraulic Pressure Gauge | |||
 0-100psi |
Model 33, 0-60psi, 2-1/2" dial, 316SS, 1/4" NPT, lower connection | 2533SS4L1D6AT | $25.75 |
| Model 33, 0-100psi, 2-1/2" dial, 316SS, 1/4" NPT, lower connection | 2533SS4L1D9AT | $25.75 | |
| Model 33, 0-200psi, 2-1/2" dial, 316SS, 1/4" NPT, lower connection | 2533SS4L1E5AT | $25.75 | |
| If you don't see what you're looking for, click here to configure other options. | |||
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Quality CheckThe final temperature check of the pad should always be done right before the roller performs the compaction. Rolling should be completed before the surface temperature of the mix falls below 240° F. Tel-Tru spot check thermometers provide the reliability and accuracy needed for this final step. |
| Thermometers for Quality Checking Compaction - Temperature Check of Pad | View specs and purchase | ||
|---|---|---|---|
| Dial Thermometers | |||
50/500°F |
GT100R 1-3/4" dial, 5" stem, .150" diameter pointed, 50/500°F with pocket sheath | 16100564AFEADAA | $42.49 |
| GT100R 1-3/4" dial, 8" stem, .150" diameter pointed, 50/500°F with pocket sheath | 16100864AFEADAA | $42.49 | |
 50/500°F |
LT225R 2" dial, 5" stem, .150" diameter pointed, 50/500°F | 23100564AFEADAA | $47.13 |
| LT225R 2" dial, 8" stem, .150" diameter pointed, 50/500°F | 23100864AFEADAA | $47.13 | |
| If you don't see what you're looking for, click here to configure other options. | |||
Helping to ensure quality and safety, Tel-Tru thermometers provide the accuracy and reliability you need for continuously measuring and monitoring temperature throughout the paving and repair process.
To keep your bimetal testing thermometers accurate and in good working order, follow these steps and protect your investment.
| Replacement Thermometers | View specs and purchase | |||
|---|---|---|---|---|
| Brand | Description | Brand Part Number | Tel-Tru Part Number | |
Stepp Manufacturing |
Thermometer, 550°F with 6" stem, bottom connect | 516001 | 39100668AKLAAAA | |
| Seal Master | Thermometer with 2-1/2" top mount (TT back connect) | P659A001 | 34100268AKLAAAA | |
| Thermometer with 12" side mount (TT bottom connect) | P659A004 | 39101268AKLAAAA | ||
| Thermometer with 12" top mount (TT back connect) | P659A010 | 34101268AKLAAAA | ||
| If you don't see what you're looking for, click here to configure other options, or Contact Us for help building an instrument. | ||||
Tel-Tru also makes replacement thermometers for the following equipment, please call to discuss your application or visit our online configurator for more information.
| OEM Equipment | |||
|---|---|---|---|
| BearCat | Etnyre | Sealcoater | |
| CAT | Falcon | SealMaster | |
| Crack Pro | HD Industries | Spaulding Manufacturing | |
| Crafco | LeeBoy | Tarmac International | |
| Cleasby | Marathon | ||
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