Series HTDL-20/30 High Temperature Data Logger

Submersible, Continuous Recording, User Replaceable Battery

The Model HTDL-20/30 is a high temperature data logger that can measure temperatures up to 500°F (260°C) and record up to 32,700 measurements.

Product Applications

  • Thermal testing
  • Process monitoring or troubleshooting

Models & Ordering

Shipping Information

All shipping times are dependent on product availability at time of shipment.

Although we make every effort to ensure a continuous supply of our products, occasional circumstances may force us to temporarily run out of a product, or have shipping delays. Should this occur, customers will be notified soon after placement of any orders for such products and, if applicable, items will be put on backorder. For orders requiring expedited shipment, our customer service team can be contacted to confirm product availability

COVID-19 Update: Due to high customer demand, lead time on some products may be up to two weeks. While this is a developing health situation, we are working continuously to take the necessary measures to ensure that the products you need are available with minimal interruption.

Model Description Usually Ships* Price Order
Ships: Same Day
Price: $591.00
High temperature data logger with 2" rigid probe. Same Day* $591.00 Order
Ships: Consult Factory
Price: $591.00
High temperature data logger with 24" flexible probe. Consult Factory* $591.00 Order


-328 to 500°F (-200 to 260°C).
Memory Size:
32,700 readings.
0.18°F (0.1°C) @ 68 to 284°F (20 to 140°C); 0.54°F (0.3°C) @ -4 to 67.98°F (-20 to 19.99°C).
0.02°F (0.01°C).
Temperature Limits:
-4 to 284°F (-20 to 140°C).
Sampling Method:
Stop on memory full or continuous recording.
Sampling Rate:
Selectable from 1 s. to 24 hrs.
Computer Requirements:
Windows® Xp Sp3, Windows Vista®, Windows® 7 operating systems.
Power Requirements:
3.6 V 1/2 AA ER14250SM lithium metal battery, installed functional, user replaceable.
Battery Life:
1 year (approx).
Docking station and USB cable.
Housing Material:
316 SS.
4.2 oz (120 g).
Agency Approvals:


  • Submersible and portable
  • Temperature measurement up to 500°F
  • Remote probe option for chamber or oven logging
  • Delay startup timer


Model Number Description Usually Ships* Price Order
HTDL-DS Docking station, software, interface cable. Consult Factory $165.00 Order
ER1425S-HT 3.9 V Lithium ion replacement battery. Consult Factory $82.50 Order

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