Older Model Mini Portable Data Loggers:

T-HR-mk3 - Single Temperature

Information on the NEW T-HR Mk4 data logger.

The T-HR is a small single channel high resolution (12 Bit) Temperature data logger.

HT-HR-mk3 - Humidity & Temperature

Information on the NEW HT-HR Mk4 data logger.

The HT-HR is a small Dual Channel High Resolution (10 bit) Humidity and Temperature data logger.

The humidity and temperature sensors are housed in a 60 micron Stainless Steel filter at the top of the logger. The HT-HR loggers now use a Sensirion SHT11 humidity sensor.

Tc-HR-mk3 - Thermocouple Temperature

Information on the NEW Tc-HR Mk4 data logger.

The Tc-HR is a small Two Channel High Resolution (12 bit) Temperature data logger.

The logger connects to an external Thermocouple probe and also has an internal temperature sensor. The logger accepts Type J,K,N,R and T thermocouple probes.

Pt-HR-mk3 - External Pt100 Temperature

Information on the NEW Pt-HR Mk4 data logger.

The Pt-HR is a small Two Channel High Resolution (12 bit) Temperature data logger.

The logger connects to an external Pt-100 sensor. It also has an internal temperature sensor.

mV-HR-mk3 - 100mV

Information on the NEW mV-HR Mk4 data logger.

The mV-HR is a small, two channel, high resolution (12 bit) Voltage data logger.
It also has an internal temperature sensor for convenient logging of ambient temperature if desired.

pH-HR-mk3 - pH / Temperature

Information on the NEW pH-HR Mk4 data logger.

The pH-HR is a small Three Channel High Resolution (12 bit) pH and Temperature data logger.

The logger connects to an external pH probe. As many pH probes have a built in
Pt-100 temperature sensor there is a logger input for this sensor. It also has an internal temperature sensor.

GP-HR-mk3 - General Purpose

Information on the NEW GP-HR Mk4 data logger.

The GP-HR is a small High Resolution (12 bit) Multi Purpose data logger housed in a rugged 304 stainless steel case, that can be configured to accept input from a wide variety of sources.
It also has an internal temperature sensor for convenient logging of ambient temperature if desired.

SafeT - Dual Channel Data Logger - Discontinued

The SafeT is an economic Dual Channel Data Logger with sophisticated Operational, Alarm and Communications capabilities.

It features an Internal Temperature Channel and an External Channel that can be used with a range of sensors for measuring Temperature, Humidity, Pressure, Light, Wind Direction, Voltage and Current.

2100-A16-ME - 16 Channel Data Logger - Discontinued

The 2100-ME Memory Expansion Card is designed to allow the 2100-A16 to stand alone, retaining the data collected for intermittent download. Data is held is permanent memory. 32,000 samples can be stored, using a selectable sampling rate.