Are there any smart or digital aquarium thermometers with additional features?

This is GoveeLife's smart floating pool thermometer (model B5109) that works with the Smart Gateway 1s to deliver real-time temperature updates and app notifications. It's designed to be durable in water with an IPX7 outer waterproof rating and uses a dual-mode battery life (1 year standard or 3 years long-life). It suits pool, hot tub, and fish pond monitoring where you want remote smart alerts.

The Aqua Nova NO-T-Hang S is a compact glass aquarium thermometer that hangs securely over the aquarium edge without suction cups. It measures water temperature from 0°C to 40°C and suits freshwater or saltwater aquariums with glass up to 6 mm thick.

This compact digital thermometer uses a large, easy-to-read LCD display and a submersible probe to monitor aquarium or terrarium temperature. It suits fishkeepers who want simple, accurate temperature monitoring with suction-cup installation and an included LR44 battery.

The Neptune Systems APEX Temperature Probe - Extended Life is a factory-calibrated aquarium temperature probe with an encapsulated thermistor and 6 ft cable. It suits reef aquarists using compatible APEX systems who need a replacement probe, an additional measurement point, or temperature compensation for PM2 and PM3 modules.

The ITC-312 is a Bluetooth 5.0 temperature controller with a waterproof probe, dual outlets, temperature calibration, high and low temperature alarms, and heating and cooling control. It suits aquarium owners who want app monitoring and automated temperature management for aquarium equipment.

This compact wireless thermometer uses a transparent touchscreen LCD to show aquarium temperature without blocking the tank view. It includes Celsius/Fahrenheit switching, high and low temperature alarms, min/max temperature records, and a replaceable button battery, making it suitable for freshwater, saltwater, reptile, and turtle tanks.

A smart Bluetooth thermometer for freshwater and marine aquariums or terrariums, with dual sensors for water and ambient temperature. It connects to the Aquael BT app for temperature history, graphs, customizable limits, push alerts, and LED status indication.

The HOBBY LED Thermometer is a digital aquarium thermometer with a large LED display, touch sensor, and integrated sensor that measures through the aquarium glass. It measures from 0 to 40 °C with ±0.1 °C accuracy and suits freshwater or saltwater aquariums where simple, cable-free monitoring is preferred.

The SuperFish Smart Thermo Min-Max is a digital aquarium thermometer that displays the current water temperature and records minimum and maximum temperatures over the previous 24 hours. It mounts to the outside of the aquarium glass, includes a battery, and suits both freshwater and marine aquariums.

The SuperFish Smart Thermo Alarm is a digital aquarium thermometer with user-set minimum and maximum temperature alarms. It has a flashing alert, includes a battery, mounts on aquarium glass, and suits freshwater and marine aquariums.

This is a compact glass aquarium thermometer with an analog scale, 0.1°C resolution, and a suction cup for mounting inside freshwater or marine aquariums. Its 18 cm length and fast 0.5-second response make it suitable for aquarium keepers who want simple, easy-to-read temperature monitoring.