Anabat Roost Logger

£460.00 Ex. VAT
Out of stock

The Anabat® Roost Logger is a low cost, weatherproof and very low power bat detector optimised for monitoring bats at and around caves, mines and other roost areas.

The Roost Logger is a completely self-contained monitoring station highly optimised for roost monitoring. It offers a highly flexible sampling regime for very long-term monitoring without an external power source. It is entirely compatible with existing Anabat software. 

Ideal for:

  • Mine closure or gating assessment
  • White-Nose Syndrome detection (through abnormal diurnal activity)
  • Monitoring activity levels and temporal patterns at any roost



  • Optimised for most colonial roosting bats (see tabs for more information)
  • Weatherproof & washable
  • Constructed with sealed microphone
  • Records temperature and battery voltage
  • Easy decontamination for White-Nose Syndrome (WNS) protocol
  • Narrow bandwidth mic reduces noise from echoes
  • Extended recording time with internal batteries (up to 6 months at night only, with 50% duty cycle or 6 weeks continuously)
  • Calibrated – all Roost Loggers leave factory set to same sensitivity


 Optional accessories (sold separately):

  • D cell batteries
  • SD card
  • Python Lock
  • Camo Strap
  • Card Reader 



  • External Dimensions: 206 x 167 x 90 mm (8.1 x 6.6 x 3.5 inches)
  • Weight : 1.5kgs (3.3lbs) with batteries
  • Power Requirements: 4 D Cell Batteries
  • Battery Life: Up to 6 months on internal batteries 
  • Memory SD Card (up to 32GB)
  • Microphone: Directional, weatherproof
  • Audio Output: None
  • Frequency Range: Optimized for 40 - 44kHz; Although the Roost Logger broad band microphone has a very steep peak frequency, if bat gets close enough all frequencies will be recorded.
  • Housing: Weatherproof and shock proof, with handle for carrying
  • GPS: None
  • Software: Free to download CFC Read and AnalookW
  • File Output: .dat Anabat Files (Zero Crossing Analysis)
  • Includes: Microphone, USB Cable, magnet for checking status
  • Warranty: 1 year



The Roost Logger microphone has a peak sensitivity of about 42kHz with a decreasing sensitivity to frequencies as they get further from 42kHz. The peak is quite narrow, but appropriate for most species at roosts or in other high clutter situations, as part of their calls typically falls in the band of greatest sensitivity. It is also sensitive to a wide range of other frequencies, but away from 42 kHz the sensitivity drops rapidly and the bat will have to be close for those frequencies to be detected.
This sort of response is appropriate for monitoring roosts. Identification is not the objective, and the low overall sensitivity is good for reducing the impact of echoes and the likelihood of detecting bats outside the roost. It is especially important to reduce the impact of noise in a detector designed to run for weeks or months at a time without using too much battery or storage space. The peak of the response also greatly reduces sensitivity to most unwanted noise, which is usually at lower frequencies. 

Battery Life

The Roost Longer uses a strategy called “Capacity Farming” which ensures that the desired Run Time can be achieved, even if the desired Sampling Time cannot. It makes sure that Sampling is limited so there will still be enough energy left in the batteries to run the Roost Logger even at the end of the desired Run Time. How well this works depends on how closely the battery capacity meets its expectations since this is the one factor about which there is most doubt. Therefore, if achieving the desired Run Time is important, it will always be important to treat the battery capacity conservatively. Just because a D cell may be rated at 18,000 mAH doesn’t mean that capacity will actually be realised when changes in temperature and other factors are taken into account.

At the simplest level, Capacity Farming makes it possible to achieve long run times by reducing the amount of Sampling Time per day. The easiest way to do this is to sample only at night – which is usually completely appropriate for bats! Sampling only at night will immediately double the run time by reducing the duty cycle (the
time spent sampling as a fraction of the total run time) to about 50%. However, for some purposes such as White-Nose detection, sampling during the day is just as important.

Battery Information

 You will only need TWO lithium D cell batteries. This is because each battery has 3.6V (3.6 x 2 = 7.2V). The two lithium batteries should be placed on the left side slots, below the power switch. The power switch should be switched to the left to power up the Roost Logger (Fig. 7). You can use AA lithium batteries with an adapter, but you will need four because they are 1.5V.

SD Card

Due to how the device was programmed, only up to 4 GB of space can be used on an SD card no matter what its actual size, use ones that say "slow" or class 4 or lower to minimize battery usage.


Shipping charges are calculated at checkout stage based on the total weight of your order, the type of product and delivery postcode. We aim for next working day delivery on all UK mainland orders received before 2:30pm.

Prices quoted below exclude VAT.

UK mainland delivery starts at £7.92. Pallet deliveries vary depending on your postcode.

Highlands and Islands delivery starts at £25. For larger orders and pallet loads you will need to contact us for a quote. The following postcodes and areas are considered to be Highlands and Islands:

AB36-38, AB55-56, FK17-21, HS all postcodes, IV all postcodes, KA27-28, KW1-17, PA20-78, PH19-50, ZE1-3
Channel Islands, Isle of Wight, Isle of Man, Scilly Isles

Northern Ireland delivery starts at £20 rising to £90 for orders up to 60kg. Please contact us for a quote for larger or palletised orders.

Europe: For European orders please visit call us T. 04 65 65 00 05 or alternatively email us on [email protected]

How quickly will I get my order?

We aim for next working day delivery on all UK mainland orders received before 2.30pm. Where products need to be made to order or are not a regular stock item, or during busy times of year, despatch times may be longer.

Typical delivery times are:

  • 1 to 3 working days within the UK.
  • 3 to 5 working days within Europe.
  • 7 to 14 working days for the rest of the world.

If delivery is likely to take longer than this we will let you know as soon as we become aware of the delay.

If you need an item by a particular date please tell us when you place the order - it if is urgent, we recommend you call us on 01451 833181 to place your order.

How will I know when my order has been dispatched?

We will email you confirmation after your order has been despatched. You might not receive this confirmation email if you made a spelling mistake when you entered your email address. Login and check your registered email address. Spam filters in your email program may also block this type of email. Please check your junk mail folders.

Will I receive online tracking information?

We send parcels of all shapes and sizes so we use several different couriers and haulage companies. Some of these make tracking information available online, and where this is the case you will receive notification by email or text. If you need to track your parcel urgently then please contact us.

What happens if my order doesn't arrive?

If you do not receive your goods within 5 working days for UK orders, or 2 weeks for international orders, please contact us for tracking information.

If your goods do not arrive within 30 days of your order being accepted, please contact us within 40 days and you can opt for a full refund or for us to make good the non-delivery.

Items that are lost will be replaced or refunded by us.

What happens if my order arrives damaged?

Please contact us within 5 working days of receiving your order. You may need to obtain a Returns Number, and return the goods to us; parcels without a Returns Number may be refused. By prior agreement, we will refund the costs of return shipping by Royal Mail first class recorded delivery, or will arrange a collection for items over 2kg. Once we have received the damaged goods we will despatch a replacement or refund you in full.

How will my order be sent?

We will always use a reputable courier company. Smaller items are usually shipped using Royal Mail or Interlink, and larger items are sent usingTNT or Tuffnells. Palletised deliveries are with Hacklings.

A signature will always be required, so please ensure that someone is available to sign for your parcel. Please also ensure you either check the item for damages before signing, or sign for the goods as unchecked. If you need to arrange delivery for a specific time please contact us. There is usually an additional charge for timed delivery.

What countries do you ship to?

We can deliver to anywhere in the world, but you may need to contact us for a quote. You can purchase online if your order is being delivered to Austria, Belgium, Denmark, France, Germany, Ireland, Luxembourg and the Netherlands. Outside these countries you will need to place your order by phone or email.

If you are outside of the EU you may be liable for import taxes.

Important Information About Backorders

At Wildcare there are times when items are only available on a backorder basis, either due to high demand or if the item is a special order item. We refer to these as ‘backorder items.

Backorder items are clearly listed on our website as ‘Order To Reserve Stock (Backorder)’. Items that are in stock and ready to be shipped immediately are listed as ‘In Stock’.

When you place an order for a back order item or an order that includes back order items, a member of our team will be in contact within 48 hours of your order to confirm the lead time for delivery. For any queries before then, please call us on: 01451 833 181

Avoiding Disappointment

We cannot guarantee that a backordered item will come back into stock or be delivered for a specific date, however we will always do our best to keep you informed and updated.

If your back order is urgent or required within a specific time frame we suggest to call us on 01451 833 181 so we can keep your requirements in mind throughout the waiting period.


If you receive damaged items or the wrong goods, please let us know straight away so that we can arrange for them to be returned to us and replaced as quickly as possible.

You will need to obtain a Returns Number  - please call us on 01451 833 181 or email [email protected]

Please return goods, WITH THE RETURNS NUMBER MARKED ON THE PARCEL to: Wildcare, Eastgate House, Moreton Road, Longborough, GL56 0QJ

We may ask for a photograph any damaged items before we agree to replace them.

Please click here to view our full returns policy.