Cables U23-001: No cables U23-002: One 184 cm (6 ft.) PVC cable; sensor diameter 1 cm (0.38 in.) U23-003: Two 184 cm (6 ft.) PVC cables; sensor diameter 0.5 cm (0.20 in.) U23-004: One 184 cm (6 ft.) PVC cable; sensor diameter 0.5 cm (0.20 in.) Environmental rating Electronics housing is NEMA 6P equivalent (tolerant of brief submergence); Units with RH sensors are NEMA 4 equivalent (splash-resistant) Launch modes Immediate start; delayed start Logging interval Fixed-rate or multiple logging intervals, with up to 8 user-defined logging intervals and durations; logging intervals from 1 second to...

To clean the loggers case, use a sponge with warm, soapy water. Use the included clamp to mount the logger to a surface. The clamp has two holes for the screws, 44 mm (1.7 inches) apart. The clamp is slightly tapered to accommodate the logger. Install the clamp so the logger fits better with its communication window facing up. This will prevent condensation from pooling around the sensor and/or grommet. U23-002 1. Grasp the cap and membrane and pull firmly. Discard them. 2. Note the orientation of the small circuit board containing the RH sensor. Pull it out and discard it. A solar shield is...

Examine the desiccant packs that were packed into the case. If the desiccant is not bright blue, put the desiccant packs in a warm, dry place until the blue color is restored. > Cable from sensor (if applicable) Protective cap Circuit board Grommet for cable(if applicable) Battery Desiccant packs WARNING: Do not cut open, incinerate, heat above 100C 4. Install a new 1/2 AA, 3.6 Volt lithium battery (part # HP-B). The positive end of the battery should face towards the communication LEDs. 5. Use a clean, dry cloth to wipe away any moisture inside the case. 6. Push the board and the desiccant packs...