Linn-Catalogue 2019-2020

Handy instruments Handy Polaris Portable instrument for measuring dis- solved oxygen. Works with a probe with membrane and electrolyte (Clark Sensor) and microprocessor controlled electro- nics. Handy Polaris has a large display, you can choose which parameter should be shown in large figures. Handy Polaris has also automatic cali­ bration, an automatic probe check and a choice of language! It is the easiest Handy to use, and is sup- plied with a carrying wallet, maintenance kit and instructions. Handy Polaris 2 is designed as an advan- ced solution for dissolved oxygen and temperature measurements with data logging. Based on Polaris functionality, Polaris 2 includes a datalogger with up to 99memory blocks and 3000memory cells and data can be transferred to a PC using a USB link which is purchased separately. Handy HI 9147 The Handy HI 9147 is made by the Han- na company, and is an inexpensive oxy- gen meter. The instrument has a water- proof casing and a galvanic oxygen probe (complete with 4 m cable). The oxygen measurements are expressed as percen- tage saturation or mg/l. This instrument also measures temperature and has auto- matic temperature compensation. The display can also be illuminated, for use in low light conditions. The HI 9147 comes complete with replacement membranes, O-rings, elec- trolyte and a transport case. pH checker This pocket instrument makes measuring pH easy! It is calibrated automatically with standard buffers, and is then ready for use. No calibration fluid is necessary. The pH-value (0-14) is indicated, and is readable to one decimal place. In addi- tion to the pH-value, temperature is also measured (automatic temperature com- pensation) and indicated simultaneously on the display. The device is waterproof and only weighs 85 g. An inexpensive spare electrode can be supplied, and is easy to replace. This pH checker offers the capability for fish farmers and hobbyists to determine the pH-value of their ponds quickly and reliably. Handy Polaris pH checker Handy HI 9147 51 LINN