The EL-2 is a hand held, battery powered, 8-bit data logger with LCD display. It stores up to 8000 readings with sample intervals between 5 seconds and 12 hours. Measurement ranges include voltage, current, temperature (K-type), humidity, pH, frequency and rate count via suitable sensors. The module is set up and data is downloaded via a PC. This is a popular part, normally stocked in high quantity and suitable for new designs.

Specification	Range	Resolution	Accuracy
Temperature ('K' type thermocouple)	-25 to +200°C	1°C	±1°C
	-13 to +392°F	1°F	±2°F
Temperature (internal)	-10 to +50°C	1°C	±1°C
	+14 to +122°F	1°F	±2°F
Humidity	5 to 95% RH	1%RH	*
pH	0 to 14pH	0.1pH*	±0.1pH
Voltage	0 to 2V d.c.	0.01V	±1%
	0 to 20V d.c.	0.1V	±1%
Current	0 to 2A	0.01A	±1%
Rate count	0 to 255	1 unit	N/A
Frequency	40 to 400Hz	N/A	±2Hz
Serial Link	8 Pin Mini DIN
Sensor Connection	4 Pin Mini DIN Connector
Memory	Up to 8000 samples *
Battery	3.6V 1/2AA lithium (up to 3 years life) **