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British Wildlife

6 issues per year 84 pages per issue Subscription only

British Wildlife is the leading natural history magazine in the UK, providing essential reading for both enthusiast and professional naturalists and wildlife conservationists. Published six times a year, British Wildlife bridges the gap between popular writing and scientific literature through a combination of long-form articles, regular columns and reports, book reviews and letters.

Subscriptions from £30 per year

Conservation Land Management

4 issues per year 44 pages per issue Subscription only

Conservation Land Management (CLM) is a quarterly magazine that is widely regarded as essential reading for all who are involved in land management for nature conservation, across the British Isles. CLM includes long-form articles, events listings, publication reviews, new product information and updates, reports of conferences and letters.

Subscriptions from £18 per year
Wildlife Survey & Monitoring  Environmental Survey & Monitoring

Lutron PDO-520 Oxygen Meter

  • Separate probe with 4m cable
  • Precise DO and temperature measurements
Lutron PDO-520 Oxygen Meter
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  • Lutron PDO-520 Oxygen Meter In stock
Price: £157.00
About this product Specification Customer reviews Related products

About this product

The PDO-520 Digital Dissolved Oxygen Meter has a separate DO polarographic type probe with incorporated temperature sensor. It provides precise dissolved oxygen and temperature measurements which can be read from the digital screen simultaneously. The meter automatically compensates for temperature between 0 to 50°C.

The PDO-520 has an auto-power off function to maximise battery life. A data hold function freezes the current reading on the screen and a recall function will provide maximum and minimum readings. Powered by four AAA batteries (not included).

The meter is supplied with a soft carrying case, a spare probe head, electrolyte solution and a user manual. Cable length: 4 meters



* Display: Dual function LCD, 29mm x 28mm
* Circuit: Custom one-chip microprocessor LSI circuit
* Range (dissolved oxygen): 0 - 20mg/L
* Range (air oxygen): 0 - 100%
* Range (temperature): 0 - 50°C
* Resolution (dissolved oxygen): 0.1ml/L
* Resolution (air oxygen): 0.1%
* Resolution (temperature): 0.1°C
* Accuracy (dissolved oxygen): ±0.4mg/L
* Accuracy (air oxygen): ±0.7%
* Accuracy (temperature): ±0.8°C
* Sensor structure: Polarographic type oxygen probe with incorporated temp. sensor
* Temperature compensation: 0 - 50°C, automatic adjustment
* Recall: Records maximum/minimum readings with recall
* Power off: Auto power off or manual off using push button
* Data hold: Freezes the display reading
* Sampling time: Approx. one second
* Operating temp: 0 - 50°C
* Operating humidity: 0 - 50°C
* Power supply: 4 x AAA batteries
* Power current: Approx. DC 6.2 mA
* Weight: 390g 
* Protection: IP67 (0 - 30°C), IP65 (30 - 50°C)

Customer Reviews

  • Separate probe with 4m cable
  • Precise DO and temperature measurements
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