125khz Writable RFID T5557 / T5567 / T5577 Rewritable Proximity Card for ID Writer Copier Duplicate (Thin Card) W1209 Digital Temperature Controller Thermostat Module Is this battery safe for

Is this battery safe for indoor use in residential areas

If anyone reaches inside and breaks a beam

this is an original Elecfreaks product sourced directly from authorized distributors

Waveshare provides calibration matrices specific to this lens in their documentation

Requires MicroUSB port or USB-C adapter

125khz Writable RFID T5557 / T5567 / T5577 Rewritable Proximity Card for ID Writer Copier Duplicate (Thin Card) W1209 Digital Temperature Controller Thermostat Module Is this battery safe for125khz Writable RFID T5557 T5567 T5577 Rewritable Proximity Card for ID Writer Copier Duplicate (Thin Card) 125khz Writable RFID T5557 T5567 T5577 Rewritable Proximity Card for ID Writer Copier Duplicate (Thin Card) This is RFID 13. 56MHz Card used for Contactless transmission of data and supplies energy with no battery needed. Its Operating distance is Up to 1 Meter depending on antenna geometry. Operating frequency is 13. 56MHz and Data transfer