Tower Microphone TM10 for BATmode systems

£633.90 Ex. VAT
Order to reserve stock (Backorder)

Electret Ultrasonic Microphone without Test Signal Speaker

The electret TM10 ultrasonic stick microphone was specially developed for the installation in the tower wall of large wind turbines for the qualitative detection of bat activity at the level of the lower rotor tips. By omitting a test signal speaker, the microphone has a very small diameter of only 12mm and the required mounting hole of 14mm is as small as possible. The microphone is made of stainless steel and an aluminum front panel. Its length of 500mm allows mounting even in thick-walled towers of large wind turbines with thicknesses up to 460mm. To fix the microphone in the wall, use the optional TM10 - Mounting Kit. For adaptation to different wall thicknesses the tripod of the mounting kit slides along the microphone stick and can be fixed either with included adhesive pads or magnetic feet on the tower inner wall. Thus, it allows a defined and secure positioning of the stick tip without having to drill additional holes for microphone attachment. However, if mounting with screws is preferred, you can also use the tripod (see Drilling Plan - TM10 in Product Attachments).

To prevent the ingress of rainwater through the mounting hole it can be drilled slightly sloping into the tower wall. The integrated microphone heater avoids condensation and increases the reliability of the microphone even in adverse weather conditions. Like all other of our microphones, the TM10 is of course compatible with BATmode 2S and BATmode 2S+ and therefore also with the UltraSoundGate 116Hnbm and 416Hnbm from Avisoft Bioacoustics.

Note : To reduce electromagnetic interferences, we recommend to place the BATbox with the detection system as close as possible to the microphone hole and as far away as possible from interference sources such as power and control cables. For this the microphone is delivered with a 3m connection cable. In principle, it is also possible to install the BATbox on the tower base and to use an extended microphone cable. However, this may cause a significant reduction in recording quality.

Main features

  • Knowles FG - Microphone capsule
  • Integrated microphone heating
  • ∅ 12mm / Length 500mm
  • Tower wall mounting with TM10 - Mounting Kit available separately
  • Electret Ultrasonic Microphone without Test Signal Speaker


  • Knowles FG - Microphone capsule
  • Microphone heating
  • Approximate input-referred self-noise level (bandwidth: 30-50 kHz): 26 dB SPL
  • Approximate sensitivity: 500mV / Pa
  • Power supply : 5V, 20 mA (provided by UltraSoundGate x16Hnbm)
  • Connector: male XLR-5 plug
  • ∅ 12mm / Length 500mm
  • Required bore hole ∅: 14mm
  • Cable length: 3m
  • Tripod TM10-Mounting Kit optionally available for tower wall mounting

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We aim for next working day delivery on all UK mainland orders received before 3.00pm. 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.

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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

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.