Zebra-Tech Ltd. products

Ideal for extended deployments of sensors where external power supplies are not available. The wiper unit is connected to a rugged underwater housing that contains the batteries, control electronics, diagnostic LED and wipe interval select switch. Powered by 6 user replaceable alkaline batteries, the Hydro-Wiper will operate for over 4 months with a 1 hour wiper interval. The wipe interval can be set from 15 minutes to 12 hours, to suit the environment. A high precision on-board clock ensures time drift during long deployments is minimal.

The Data-logger controlled Hydro-Wiper consists of a wiper unit that is attached to your sensor or underwater camera by a purpose designed clamp. The wiper unit is connected to the Hydro-Wiper control module by an electrical cable. The control module is a small rugged wiring panel that connects to a power supply and a data logger. To initiate a wipe, the data logger simply sends a trigger signal to the control module. Synchronizing the wipe with measurements from the instrument ensures data quality is consistent throughout the deployment and optical sensor fouling is minimized.

Underwater camera need a clean? The Hydro-Wiper can be customized and has been used successfully in a variety of underwater camera installations. Look at some of our recent designs. Camera Housings: Often providing a solution for an underwater camera deployment requires some customization so please talk to us about your needs.

The Diver Logger is a rugged self contained unit that is mounted on a diver’s back, or attached to a catch bag. It automatically starts recording when the diver enters the water and doesn’t require any user interaction. New Zealand Paua divers have been using these units for several years now to collect fine scale data for their industry. On the surface the Diver Logger records the position, while during a dive it records the dive depth and water temperature profile.

The D-Opto is a rugged low power dissolved oxygen sensor tried and tested in a wide range of extreme environments. A popular choice for both researchers and local government catchment monitoring programs. As the D-Opto measures DO optically, it doesn’t consume oxygen during sampling and can therefore be used in still water without compromising accuracy. It is available with either SDI-12, 4-20mA or 0-5 volt signal output. The low power consumption and low sensor drift make the D-Opto an ideal choice for remote installations.

For harsh environments and situations where bio-fouling is extreme, the D-Opto Shutter system can be fitted to the D-Opto Sensor (not currently available for the D-Opto Logger). The Shutter is a mechanical device that simply attaches to the side of the D-Opto, and is controlled by the same data logger attached to the D-Opto.

The D-Opto Logger is a fully self-contained dissolved oxygen logger, incorporating a dissolved oxygen and temperature sensor, battery and power efficient data logger in a rugged compact underwater housing. Simple to operate and easy to deploy, the D-Opto Logger can endure long field deployments between servicing. The field replaceable 9-volt standard battery and simple software with data graphing function makes field servicing and data downloading quick and straightforward.