Simultaneously displays oxygen concentration and temperature. Serial RS-232 output allows it to be connected to a computer or data logger for monitoring and keeping results. Jumbo-size digits are 1-3/8 inches high. At the touch of a button the instrument recalls highest, lowest, and average readings. A DATA HOLD button freezes the display to capture readings. To assure accuracy an individually serial-numbered Traceable® Certificate is supplied to indicate traceability to standards provided by NIST (National Institute of Standards and Technology). Unit is supplied with probe, two replacement probe heads, electrolyte solution, 9-volt alkaline battery, serial computer output, and carrying case. Cable length is 40 inches. Size is 7 x 3 x 1-1/4 inches. Weight is 9-1/2 ounces. Replacement battery Cat. No. 1112.

Meets all lab certification requirements Specifically designed to test water from stills, demineralizers, deionizers, and reverse osmosis equipment. Meets all lab certification requirements for pure water analysis for CAP, ASTM, NCCLS, USP, and ACS. Single-purpose unit complies with all accreditation analysis requirements. Designed for labs obligated to maintain a periodic check of water purity. To assure accuracy, a Traceable® Certificate is provided to indicate instrument traceability to standards provided by NIST (National Institute of Standards and Technology) from our ISO 17025 calibration laboratory. Accurate readings in an instant Range is 0.1 to 20,000 microsiemens (micromhos) (from pure to raw water). Accuracy is ±0.4% of full scale. Simple operation eliminates errors and ensures everyone reports identical results. Supplied probe (cable length of 40 inches) provides an instant response. Internal, solid-state thermometer ensures all readings are automatically referenced to the international standard of 25°C. Size is 6-1/4 x 3-1/5 x 1-1/3 inches and weight is 11 ounces. Supplied ready to operate with carrying case, instructions, probe, 9-volt battery, and Traceable® Certificate. Replacement battery Cat. No. 1112.