2555 Kerper Blvd. Dubuque, IA 52001
Phone: (800) 553-0039   Fax: (563) 589-0516  

Precisely Calibrated Measuring Devices for Industry, Laboratory, and Schools

Thermometers, Thermocouples, Hydrometers, Shock Meters, Pulse Counters, Data Recorders and Transmitters, and Software, measure and record temperature, humidity, shock, voltage, current and pulse.

Dependable Quality and Accuracy that you have come to rely on for your businesses, labs, and schools.  We supply a large variety of devices for the pharmaceutical, food, dairy, petroleum and diagnostic industries.

We, welcome your business relationship with ERTCO and havw committed our staff to satisfying your needs for thermo or hydro measuring or recording devices from our huge inventory.  

Here you will find links to our vast array of the most common thermometers and hydrometers; and to the more specialized "exact temp" thermometers, armored pocket thermometers, organic spirit filled teflon coated thermometers, non-mercury "ever safe" thermometers, bimetallic thermometers, high precision digital thermometers, American Petroleum Institute and ASTM hydrometers, Baumé hydrometers, Brix and Balling hydrometers, propylene glycol hydrometers, Quevenne Lactometers, salt-brine hydrometers, specific gravity hydrometers, Twaddle hydrometers, thermocouples, infrared devices, viscometers, data recorders and transmitters.

Barnstead/ERTCO Thermometers