Vampire ST – integrable with a tactical optical sight system – designed for civil or military purposes, and provides, automatic calculation of vertical and horizontal amendments, controlled entry of the vertical amendments into the sight, visual and voice notification of shooter.

At amendments calculation considered:

  • Target range;
  • Elevation angle;
  • Air temperature and humidity, atmospheric pressure;
  • Ballistic characteristics of the ammunition;
  • Wind direction and strength;
  • Derivation, Coriolis effect.

Vampire ST – mounted on an optical sight, and matched with the vertical amendments entry mechanism., Ballistic module will perform the calculation and will show the calculated value of amendments, target range, as well as an accurate shot distance for the current position of the vertical amendments drum at the OLED screen for measured by rangefinder or manually entered range. Following the instructions at the display and voice guidance at the Bluetooth headset, there is no need for the shooter to “count clicks”, by quickly rotating of the drum until reaching the target’s range.

Vampire ST optionally equipped with:

  • IR&D laser rangefinder , mounted at sight or weapon’s foregrip and connected with the ballistic module by wire or telemetry radio channel;
  • IR&D Windmaster meteorological station with ultrasonic wind speed and direction sensors (without vane and impeller), pressure, temperature and humidity;
  • iOS / Android application for smartphones and tablets for target coordinates calculation and its displaying at the electronic map;

Vampire ST – is a modern hi-tech element base of the electronic unit and advanced functional capabilities. Vertical amendments drum position reader unit, high-performance calculator with ballistic calculator software, a set of atmospheric condition sensors (temperature, pressure, humidity), color OLED screen, electronic compass, 3-axis gyro sensor and G meter, wired and radio subsystems for external devices (Bluetooth, special telemetry 2.4GHz)connection, radio control for rangefinder’s activation are integrated into minimal size and weight shockproof and waterproof case.

Vampire ST – fully  automated system for quick and accurate calculation of vertical and horizontal amendments, opening new possibilities of high-accuracy shooting with an optic sight at long distances, provides an opportunity for the shooter to focus only on the shot in limited time conditions. It is an enjoyment for every hunter and invaluable important solution for military. For high-accuracy long-range shooting in stressful situations it minimizes shooter’s errors and significantly reduces time for an accurate shot preparation.

Ballistic calculator
Maximal shooting range, m/yd 2500 / 2734
Data base for 8 types of rifles +
Data base for 3 types of ammunition  to a rifle +
Built-in ballistic calculator +
Automatic ballistic calculation with regard to the distance, elevation angle, atmospheric parameters (temperature, pressure, humidity), wind strength and direction, ammunition ballistic parameters, drift, the Coriolis effect +
Optical calculation of the elevation knob position, shooting distance calculation according to the current elevation knob position +
LRF unit Option, wire or wireless connection
Laser wavelength, nm 905 / 1550 (option)
Distance measurement range, m 10-5000
Range measurement accuracy 1 m
Calculation of the true distance to the target (taking into account elevation adjustment) +
LRF calibration +
Type color OLED
Bluetooth +
Radio interface, 2.4 GHz +
Additional functions
Setting and control via Bluetooth Yes, app for iOS & Android
Connection of additional devices (remote, wind station, etc.) via a radio channel +
Profile settings Yes, 5
Target location on the integrated map via the iOS/ Android application +
Power saving modes +
Display brightness correction via the light sensor +
System settings
 Switch-on time Within 3 sec
Battery life > 24 hrs (at 0°С)
Battery type 1x CR123A or 1х 16340
Mounting on scopes with indication of the elevation knob position Yes for Dedal and Kahles scopes (possible to order a device to be mounted on a scopes of other manufactures)
Integrated sensors list
Shot sensor +
Rest  sensor +
Gyroscope +
Free Fall sensor +
Light sensor +
Elevation sensor +
Roll angle sensor +
Temperature sensor +
Pressure sensor +
Humidity sensor +
Switch-off timer +
Digital compass +
Physical parameters
Operating temperature range -45°C … +65°C
Ingress protection rating (Waterproof) IP66
Housing material Aluminum-magnesium alloy
Dimensions, mm 85,4 x 64 x 56,4
Weight (without batteries), g 180



  • Automatic calculation of vertical and horizontal amendments at the distance up to 1500 meters;
  • Two  ballistic calculator operating modes:
    • By the drum’s position (OLED screen displays the distance, at which, at the current position of vertical amendments drum, the shot will be accurate);
    • By the distance, inputted manually into the ballistic module or automatically calculated by the rangefinder (the amendment’s value and direction of drum’s rotation for achieving the required range are displayed at the OLED screen);
  • Ballistic data base for three ammunitions for each of eight rifles;
  • Built-in meteorological station (atmospheric pressure, temperature and humidity);
  • Counting of number of shots for each ammunition and rifle;
  • Built-in electronic compass, 3-axis gyro sensor and G meter;
  • Built-in sensors: light, tilt angle, elevation angle, rest and free fall;
  • Connection of the accessories (optional):
    • IR&D laser rangefinder operation modes; through translucent barrier, fog, dust-storm and other adverse weather conditions at distances range from 10 to 5000 meters;
    • IR&D remote control (wristband);
    • IR&D Windmaster meteorological station with ultrasonic wind speed and direction sensor (without vane and impeller), pressure sensor, temperature and humidity;
    • Kestrel meteorological station;
    • Bluetooth headset for voice guidance about operating modes and results of calculation;
  • iOS / Android application for smartphone or tablet for target coordinates calculation and its displaying at the electronic map (optional);
  • Adjustment and operating of the device by using of IR&D Software application for smartphones and tablets (iOS / Android);
  • Energy-saving mode for power consumption reduction and quick switching into the operating mode;
  • Ability to finish writing and creation of a new functionality by technical specifications of the customer;
  • English, German, French and Spanish interface. Ability of any language support by the customer’s request is provided(optional);
  • Online service, advisory support and training, twenty-four-hour support for the customers.